EXHIBIT 1.1



                                4,700,000 Shares

                             FRONTIER AIRLINES, INC.

                           Common Stock (no par value)

                             UNDERWRITING AGREEMENT




September 18, 2003




                                                              September 18, 2003


Morgan Stanley & Co. Incorporated
Merrill Lynch, Pierce, Fenner & Smith
                 Incorporated
Raymond James & Associates, Inc.

c/o    Morgan Stanley & Co. Incorporated
       1585 Broadway
       New York, New York  10036

Dear Sirs and Mesdames:

                  FRONTIER AIRLINES, INC., a Colorado corporation (the
"COMPANY"), proposes to issue and sell to the several Underwriters named in
Schedule I hereto (the "UNDERWRITERS") 4,700,000 shares (the "FIRM SHARES") of
its common stock, no par value (the "COMMON STOCK"). The Company also proposes
to issue and sell to the several Underwriters not more than an additional
700,000 shares of its Common Stock (the "ADDITIONAL SHARES") if and to the
extent that you, as Managers of the offering, shall have determined to exercise,
on behalf of the Underwriters, the right to purchase such shares of Common Stock
granted to the Underwriters in Section 2 hereof. The Firm Shares and the
Additional Shares are hereinafter collectively referred to as the "SHARES."

                  The Company has filed with the Securities and Exchange
Commission (the "COMMISSION") a registration statement, including a prospectus,
relating to certain of its debt and equity securities (including the Shares) and
has filed with, or transmitted for filing to, or shall promptly hereafter file
with or transmit for filing to, the Commission a prospectus supplement (the
"PROSPECTUS SUPPLEMENT") specifically relating to the Shares pursuant to Rule
424 under the Securities Act of 1933, as amended (the "SECURITIES ACT"). The
term "REGISTRATION STATEMENT" means the registration statement, including the
exhibits thereto, as amended to the date of this Agreement. The term "BASE
PROSPECTUS" means the prospectus included in the Registration Statement. The
term "PROSPECTUS" means the Base Prospectus together with the Prospectus
Supplement. The term "PRELIMINARY PROSPECTUS" means a preliminary prospectus
supplement specifically relating to the Shares, together with the Base
Prospectus. As used herein the terms "Base Prospectus," "Prospectus" and
"preliminary prospectus" shall include, in each case, the documents, if any,
incorporated by reference therein. The terms "SUPPLEMENT," "AMENDMENT" and
"AMEND" as used herein shall include all the documents deemed to be incorporated
by reference in the Prospectus that are filed subsequent to the date of the Base
Prospectus by the Company with the Commission pursuant to the Securities
Exchange Act of 1934, as amended (the "EXCHANGE ACT").

         Representations and Warranties. The Company represents and warrants to
and agrees with each of the Underwriters that:





                  (a) The Registration Statement has become effective; no stop
         order suspending the effectiveness of the Registration Statement is in
         effect, and no proceedings for such purpose are pending before or, to
         the knowledge of the Company, threatened by the Commission.

                  (b) (i) Each document, if any, filed or to be filed pursuant
         to the Exchange Act and incorporated by reference in the Prospectus
         complied or will comply when so filed in all material respects with the
         Exchange Act and the applicable rules and regulations of the Commission
         thereunder; (ii) each part of the Registration Statement, when it
         became effective, did not contain and, as amended or supplemented, if
         applicable, will not contain any untrue statement of a material fact or
         omit to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading; (iii) the
         Registration Statement and the Prospectus comply and, as amended or
         supplemented, if applicable, will comply in all material respects with
         the Securities Act and the applicable rules and regulations of the
         Commission thereunder; and (iv) the Prospectus does not contain and, as
         amended or supplemented, if applicable, will not contain any untrue
         statement of a material fact or omit to state a material fact necessary
         to make the statements therein, in the light of the circumstances under
         which they were made, not misleading, except that the representations
         and warranties set forth in this paragraph do not apply to statements
         or omissions in the Registration Statement or the Prospectus, as
         amended or supplemented (if applicable), based upon information
         relating to any Underwriter furnished to the Company in writing by such
         Underwriter through you expressly for use therein.

                  (c) The Company has been duly incorporated, is validly
         existing as a corporation in good standing under the laws of the
         jurisdiction of its incorporation, has the corporate power and
         authority to own its property and to conduct its business as described
         in the Prospectus and is duly qualified to transact business and is in
         good standing in each jurisdiction in which the conduct of its business
         or its ownership or leasing of property requires such qualification,
         except to the extent that the failure to be so qualified or be in good
         standing would not have a material adverse effect on the Company. The
         Company has no existing subsidiaries.

                  (d) This Agreement has been duly authorized, executed and
         delivered by the Company.

                  (e) The authorized capital stock of the Company conforms as to
         legal matters to the description thereof contained in the Prospectus.

                  (f) The shares of capital stock of the Company outstanding
         prior to the issuance of the Shares have been duly authorized and are
         validly issued, fully paid and non-assessable.

                  (g) The Shares to be sold by the Company have been duly
         authorized and, when issued and delivered in accordance with the terms
         of this Agreement, will be validly issued, fully paid and
         non-assessable, and the issuance of such Shares will not be subject to
         any preemptive or similar rights.


                                       2



                  (h) The execution and delivery by the Company of, and the
         performance by the Company of its obligations under, this Agreement
         will not contravene any provision of applicable law or the articles of
         incorporation or by-laws of the Company or any agreement or other
         instrument binding upon the Company that is material to the Company, or
         any judgment, order or decree of any governmental body, agency or court
         having jurisdiction over the Company, and no consent, approval,
         authorization or order of, or qualification with, any governmental body
         or agency is required for the performance by the Company of its
         obligations under this Agreement, except such as have been obtained
         under the Securities Act and the Exchange Act and from The Nasdaq
         National Market and the National Association of Securities Dealers,
         Inc. ("NASD"), and except such as may be required by the securities or
         Blue Sky laws of the various states in connection with the offer and
         sale of the Shares.

                  (i) There has not occurred any material adverse change, or any
         development involving a prospective material adverse change, in the
         condition, financial or otherwise, or in the earnings, business or
         operations of the Company, from that set forth in the Prospectus
         (exclusive of any amendments or supplements thereto subsequent to the
         date of this Agreement).

                  (j) There are no legal or governmental proceedings pending or
         threatened to which the Company is a party or to which any of the
         properties of the Company is subject that are required to be described
         in the Registration Statement or the Prospectus and are not so
         described or any statutes, regulations, contracts or other documents
         that are required to be described in the Registration Statement or the
         Prospectus or to be filed as exhibits to the Registration Statement
         that are not described or filed as required.

                  (k) Each preliminary prospectus filed as part of the
         registration statement as originally filed or as part of any amendment
         thereto, or filed pursuant to Rule 424 under the Securities Act,
         complied when so filed in all material respects with the Securities Act
         and the applicable rules and regulations of the Commission thereunder.

                  (l) The Company is not, and after giving effect to the
         offering and sale of the Shares and the application of the proceeds
         thereof as described in the Prospectus will not be, required to
         register as an "investment company" as such term is defined in the
         Investment Company Act of 1940, as amended.

                  (m) The Company (i) is in compliance with any and all
         applicable foreign, federal, state and local laws and regulations
         relating to the protection of human health and safety, the environment
         or hazardous or toxic substances or wastes, pollutants or contaminants
         ("ENVIRONMENTAL LAWS"), (ii) has received all permits, licenses or
         other approvals required of them under applicable Environmental Laws to
         conduct their businesses, (iii) is in compliance with all terms and
         conditions of any such permit, license or approval, except where such
         noncompliance with Environmental Laws, failure to receive required
         permits, licenses or other approvals or failure to comply with the
         terms and conditions of such permits, licenses or approvals would not,
         singly or in the aggregate, have a material adverse effect on the
         Company.


                                       3



                  (n) There are no costs or liabilities associated with
         Environmental Laws (including, without limitation, any capital or
         operating expenditures required for clean-up, closure of properties or
         compliance with Environmental Laws or any permit, license or approval,
         any related constraints on operating activities and any potential
         liabilities to third parties) which would, singly or in the aggregate,
         have a material adverse effect on the Company.

                  (o) There are no contracts, agreements or understandings
         between the Company and any person granting such person the right to
         require the Company to file a registration statement under the
         Securities Act with respect to any securities of the Company (except as
         otherwise disclosed in the Registration Statement) or to require the
         Company to include such securities with the Shares registered pursuant
         to the Registration Statement.

                  (p) Subsequent to the date as of which information is given in
         the Prospectus, (i) the Company has not incurred any material liability
         or obligation, direct or contingent, or entered into any material
         transaction, in each case, not in the ordinary course of business or as
         described in or contemplated by the Prospectus (including, without
         limitation, aircraft acquisitions or financing so described in or
         contemplated by the Prospectus); (ii) the Company has not purchased any
         of its outstanding capital stock, nor declared, paid or otherwise made
         any dividend or distribution of any kind on its capital stock; (iii)
         there has not been any material change in the capital stock, short-term
         debt or long-term debt of the Company except in each case as described
         in or contemplated by the Prospectus (including, without limitation,
         aircraft financing so described in or contemplated by the Prospectus);
         and (iv) there has been no prohibition or suspension of the operation
         of the Company's aircraft, including as a result of action taken by the
         Federal Aviation Administration or the Department of Transportation.

                  (q) The Company has good and marketable title in fee simple to
         all real property and good and marketable title to all personal
         property owned by it which is material to the business of the Company,
         free and clear of all liens, encumbrances and defects except such as
         are described in the Prospectus or the Registration Statement or such
         as do not materially affect the value of such property or do not
         interfere with the use made and proposed to be made of such property by
         the Company; and any real property and buildings held under lease by
         the Company are held by it under valid, subsisting and enforceable
         leases with such exceptions as are not material and do not interfere
         with the use made and proposed to be made of such property and
         buildings by the Company, in each case except as described in or
         contemplated by the Prospectus.

                  (r) (i) The Company possesses such permits, licenses,
         approvals, consents and other authorizations (collectively "GOVERNMENT
         LICENSES") issued by the appropriate federal, state, local or foreign
         regulatory agencies or bodies, including the Department of
         Transportation, the Federal Aviation Administration or the Federal
         Communications Commission necessary to conduct the business now
         operated by it; (ii) the Company is in compliance with the terms and
         conditions of all such Governmental Licenses, except where the failure
         so to comply would not, singly or in the aggregate, have a material
         adverse effect on the Company; (iii) all of the Government Licenses are
         valid and in full


                                       4



         force, except where the invalidity of such Governmental Licenses or the
         failure of such Governmental Licenses to be in full force and effect
         would not have a material adverse effect on the Company; and (iv) the
         Company has not received any notice of proceedings relating to the
         revocation or modification of any such Governmental Licenses which,
         singly or in the aggregate, if the subject of an unfavorable decision,
         ruling or finding, would have a material adverse effect on the Company.

                  (s) Except as described in the Prospectus, no material labor
         dispute with the employees of the Company exists or, to the knowledge
         of the Company, is imminent; and the Company is not aware, but without
         any independent investigation or inquiry, of any existing, threatened
         or imminent labor disturbance by the employees of any of its principal
         suppliers, manufacturers or contractors that could have a material
         adverse effect on the Company.

                  (t) The Company is insured by insurers that the Company
         reasonably believes to be of recognized financial responsibility
         against such losses and risks and in such amounts as are customary in
         the businesses in which it is engaged; the Company has not been refused
         any insurance coverage sought or applied other than in connection with
         instances where the Company was seeking to obtain insurance coverage at
         more attractive rates; and the Company has no reason to believe that it
         will not be able to renew its existing insurance coverage as and when
         such coverage expires or to obtain similar coverage from similar
         insurers as may be necessary to continue its business at a cost that
         would not have a material adverse effect on the Company, except as
         described in or contemplated by the Prospectus.

                  (u) The Company maintains a system of internal accounting
         controls sufficient to provide reasonable assurance that (i)
         transactions are executed in accordance with management's general or
         specific authorizations in all material respects and (ii) transactions
         are recorded as necessary to permit preparation of financial statements
         in conformity with generally accepted accounting principles and to
         maintain asset accountability.

                  (v) The Company (i) is an "air carrier" within the meaning of
         49 U.S.C. Section 40102(a); (ii) holds an air carrier operating
         certificate issued by the Secretary of Transportation pursuant to
         Chapter 447 of Title 49 of the United States Code for aircraft capable
         of carrying 10 or more individuals or 6,000 pounds or more of cargo;
         and (iii) is a "citizen of the United States" as defined in 49 U.S.C.
         Section 401102.

                  Agreements to Sell and Purchase. The Company hereby agrees to
sell to the several Underwriters, and each Underwriter, upon the basis of the
representations and warranties herein contained, but subject to the conditions
hereinafter stated, agrees, severally and not jointly, to purchase from the
Company the respective numbers of Firm Shares set forth in Schedule I hereto
opposite its name at $16.1075 a share (the "PURCHASE PRICE").

                  On the basis of the representations and warranties contained
in this Agreement, and subject to its terms and conditions, the Company agrees
to sell to the Underwriters the Additional Shares, and the Underwriters shall
have the right to purchase, severally and not


                                       5



jointly, up to 700,000 Additional Shares at the Purchase Price. You may exercise
this right on behalf of the Underwriters in whole or from time to time in part
by giving written notice of each election to exercise the option not later than
30 days after the date of this Agreement. Any exercise notice shall specify the
number of Additional Shares to be purchased by the Underwriters and the date on
which such shares are to be purchased. Each purchase date must be at least one
business day after the written notice is given and may not be earlier than the
closing date for the Firm Shares nor later than ten business days after the date
of such notice. Additional Shares may be purchased as provided in Section 4
hereof solely for the purpose of covering over-allotments made in connection
with the offering of the Firm Shares. On each day, if any, that Additional
Shares are to be purchased (an "OPTION CLOSING DATE"), each Underwriter agrees,
severally and not jointly, to purchase the number of Additional Shares (subject
to such adjustments to eliminate fractional shares as you may determine) that
bears the same proportion to the total number of Additional Shares to be
purchased on such Option Closing Date as the number of Firm Shares set forth in
Schedule I hereto opposite the name of such Underwriter bears to the total
number of Firm Shares.

         The Company hereby agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated on behalf of the Underwriters, it will not,
during the period ending 90 days after the date of the Prospectus, (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock or (ii) enter into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of the Common Stock, whether any such transaction described in
clause (i) or (ii) above is to be settled by delivery of Common Stock or such
other securities, in cash or otherwise. The foregoing sentence shall not apply
to (A) the Shares to be sold hereunder, (B) the issuance by the Company of
shares of Common Stock upon the exercise of an option or warrant or the
conversion of a security outstanding on the date hereof and as described in the
Prospectus or (C) the issuance by the Company of any shares of Common Stock or
options to employees of the Company on or after the date hereof pursuant to the
Company's equity incentive plans as described in the Prospectus and the issuance
by the Company of shares of Common Stock upon the exercise of any such options.

                  Terms of Public Offering. The Company is advised by you that
the Shares are to be offered to the public initially at $17.00 a share (the
"PUBLIC OFFERING PRICE") and to certain dealers selected by you at a price that
represents a concession not in excess of $0.58 a share under the Public Offering
Price.

                  Payment and Delivery. Payment for the Firm Shares shall be
made to the Company in Federal or other funds immediately available in New York
City against delivery of such Firm Shares for the respective accounts of the
several Underwriters at 10:00 a.m., New York City time, on September 24, 2003,
or at such other time on the same or such other date, not later than October 1,
2003, as shall be designated in writing by you. The time and date of such
payment are hereinafter referred to as the "CLOSING DATE."

                  Payment for any Additional Shares shall be made to the Company
in Federal or other funds immediately available in New York City against
delivery of such Additional Shares


                                       6



for the respective accounts of the several Underwriters at 10:00 a.m., New York
City time, on the date specified in the corresponding notice described in
Section 2 or at such other time on the same or on such other date, in any event
not later than October 18, 2003, as shall be designated in writing by you.

                  The Firm Shares and Additional Shares shall be registered in
such names and in such denominations as you shall request in writing not later
than one full business day prior to the Closing Date or the applicable Option
Closing Date, as the case may be. The Firm Shares and Additional Shares shall be
delivered to you on the Closing Date or an Option Closing Date, as the case may
be, for the respective accounts of the several Underwriters, with any transfer
taxes payable in connection with the transfer of the Shares to the Underwriters
duly paid, against payment of the Purchase Price therefor.

                  Conditions to the Underwriters' Obligations. The obligations
of the Company to sell the Shares to the Underwriters and the several
obligations of the Underwriters to purchase and pay for the Shares on the
Closing Date are subject to the following conditions:

                  (w) Subsequent to the execution and delivery of this Agreement
         and prior to the Closing Date:

                           (i) there shall not have occurred any downgrading,
                  nor shall any notice have been given of any intended or
                  potential downgrading or of any review for a possible change
                  that does not indicate the direction of the possible change,
                  in the rating accorded any of the Company's securities by any
                  "nationally recognized statistical rating organization," as
                  such term is defined for purposes of Rule 436(g)(2) under the
                  Securities Act; and

                           (ii) there shall not have occurred any change, or any
                  development involving a prospective change, in the condition,
                  financial or otherwise, or in the earnings, business or
                  operations of the Company, from that set forth in the
                  Prospectus (exclusive of any amendments or supplements thereto
                  subsequent to the date of this Agreement) that, in your
                  judgment, is material and adverse and that makes it, in your
                  judgment, impracticable to market the Shares on the terms and
                  in the manner contemplated in the Prospectus.

                  (x) The Underwriters shall have received on the Closing Date a
         certificate, dated the Closing Date and signed by an executive officer
         of the Company, to the effect set forth in Section 5(a)(i) above and to
         the effect that the representations and warranties of the Company
         contained in this Agreement are true and correct as of the Closing Date
         and that the Company has complied in all material respects with all of
         the agreements and satisfied in all material respects all of the
         conditions on its part to be performed or satisfied hereunder on or
         before the Closing Date. The officer signing and delivering such
         certificate may rely upon the best of his or her knowledge as to
         proceedings threatened.


                                       7



                  (y) The Underwriters shall have received on the Closing Date
         an opinion of Faegre & Benson LLP, outside counsel for the Company,
         dated the Closing Date, to the effect that:

                           (i) the Company has been duly incorporated, is
                  validly existing as a corporation in good standing under the
                  laws of the jurisdiction of its incorporation, has the
                  corporate power and authority to own its property and to
                  conduct its business as described in the Prospectus and is
                  duly qualified to transact business and is in good standing in
                  each jurisdiction set forth in a schedule to such opinion,
                  except where the failure to be so qualified or be in good
                  standing would not have a material adverse effect on the
                  Company;

                           (ii) the authorized capital stock of the Company
                  conforms as to legal matters in all material respects to the
                  description thereof contained in the Prospectus;

                           (iii) the shares of capital stock outstanding prior
                  to the issuance of the Shares have been duly authorized and
                  are validly issued and, to the knowledge of such counsel,
                  fully paid and non-assessable;

                           (iv) the Shares have been duly authorized and, when
                  issued and delivered in accordance with the terms of this
                  Agreement, will be validly issued, fully paid and
                  non-assessable, and the issuance of such Shares will not be
                  subject to any preemptive or similar rights;

                           (v) this Agreement has been duly authorized, executed
                  and delivered by the Company;

                           (vi) except for such conflicts or violations, when
                  considered alone or taken together with all other conflicts or
                  violations, would not have a material adverse effect on the
                  Company, the execution and delivery by the Company of this
                  Agreement does not, and the performance by the Company of its
                  obligations under this Agreement will not, contravene any
                  provision of applicable law or the articles of incorporation
                  or by-laws of the Company, or, to such counsel's knowledge,
                  any agreement or other instrument binding upon the Company
                  that is material to the Company, or, to such counsel's
                  knowledge, any judgment, order or decree of any governmental
                  body, agency or court having jurisdiction over the Company,
                  and no consent, approval, authorization or order of, or
                  qualification with, any governmental body or agency is
                  required for the performance by the Company of its obligations
                  under this Agreement, except for those which have been
                  obtained under the Securities Act and the Exchange Act, and
                  except such as may be required by the securities or Blue Sky
                  laws of the various states in connection with the offer and
                  sale of the Shares;

                           (vii) the statements relating to legal matters,
                  documents or proceedings included in (A) the Prospectus under
                  the captions "Description of Capital Stock" and "Underwriters"
                  (except relating to price, stabilization, short positions and


                                       8



                  passive market-making activities, as to which such counsel
                  need not express an opinion) and (B) the Registration
                  Statement in Item 15, in each case insofar as such statements
                  constitute summaries of the legal matters, documents or
                  proceedings referred to therein fairly summarize in all
                  material respects such matters, documents or proceedings;

                           (viii) after due inquiry, such counsel does not know
                  of any legal or governmental proceedings pending or threatened
                  to which the Company is a party or to which any of the
                  properties of the Company is subject that are required to be
                  described in the Registration Statement or the Prospectus and
                  are not so described or of any statutes, regulations,
                  contracts or other documents that are required to be described
                  in the Registration Statement or the Prospectus or to be filed
                  as exhibits to the Registration Statement that are not
                  described or filed as required;

                           (ix) the Company is not, and after giving effect to
                  the offering and sale of the Shares and the application of the
                  proceeds thereof as described in the Prospectus will not be,
                  required to register as an "investment company" as such term
                  is defined in the Investment Company Act of 1940, as amended;
                  and

                           (x) nothing has come to the attention of such counsel
                  that causes such counsel to believe that (A) the Registration
                  Statement or the Prospectus (except for the financial
                  statements and the notes and financial schedules thereto and
                  other financial, statistical and accounting information and
                  data included or incorporated by reference therein
                  (collectively, the "Excluded Information"), as to which such
                  counsel need not express any belief) do not comply as to form
                  in all material respects with the requirements of the
                  Securities Act and the applicable rules and regulations of the
                  Commission thereunder, or (B) each document filed pursuant to
                  the Exchange Act and incorporated by reference in the
                  Registration Statement and the Prospectus (except for the
                  Excluded Information, as to which such counsel need not
                  express any belief), on the date such document was filed with
                  the Commission, did not comply as to form in all material
                  respects with the requirements of the Exchange Act and the
                  applicable rules and regulations of the Commission thereunder.

                           In addition, such counsel shall state that, although
                  such counsel has not undertaken to determine independently
                  and, therefore, except for the opinions set forth in clauses
                  (c)(iii), (vii) and (ix) above, does not assume any
                  responsibility, explicitly or implicitly, for the accuracy,
                  completeness or fairness of the statements contained in the
                  Registration Statement and the Prospectus, such counsel has
                  participated in the preparation of the Registration Statement
                  and the Prospectus, including review and discussion of the
                  contents thereof, and that, based upon and subject to the
                  foregoing and the other qualifications and limitations set
                  forth in such counsel's opinion, nothing has come to the
                  attention of such counsel that causes such counsel to believe
                  that (i) the Registration Statement or the prospectus included
                  therein (except for the Excluded Information, as to which such
                  counsel need not express any belief) at the time the
                  Registration Statement became effective contained an untrue
                  statement of a


                                       9



                  material fact or omitted to state a material fact required to
                  be stated therein or necessary to make the statements therein
                  not misleading or (ii) the Prospectus (except for the Excluded
                  Information, as to which such counsel need not express any
                  belief) as of its date or as of the Closing Date contained or
                  contains an untrue statement of a material fact or omitted or
                  omits to state a material fact necessary in order to make the
                  statements therein, in the light of the circumstances under
                  which they were made, not misleading.

                           In giving such opinion and belief, counsel for the
                  Company may (i) as to matters of fact, rely on certificates of
                  the Company or officers of the Company and other information
                  from governmental officials, (ii) state that it is opining
                  only as to matters of federal and Colorado law, and (iii)
                  state that its opinion and belief are based upon its
                  participation in the preparation of the Registration Statement
                  and Prospectus and any amendments or supplements thereto and
                  review and discussion of the contents thereof, but are without
                  independent check or verification, except as specified.

                           The opinion described in Section 5(c) above shall be
                  rendered to the Underwriters at the request of the Company and
                  shall so state therein.

                  (z) The Underwriters shall have received on the Closing Date
         an opinion of David Sislowski, general counsel for the Company, dated
         the Closing Date, to the effect that:

                           (i) to such counsel's knowledge, the Company
                  possesses the Government Licenses necessary to conduct its
                  commercial airline operations as described in the Prospectus
                  and the Company is in compliance with the terms and conditions
                  of all such Government Licenses, except where the failure to
                  so comply would not, singly or in the aggregate, have a
                  material adverse effect on the Company, and all of the
                  Government Licenses are valid and in full force and effect,
                  except where the invalidity of such Government Licenses or the
                  failure of such Governmental Licenses to be in full force and
                  effect would not have a material adverse effect on the
                  Company; and

                           (ii) the Company is an "air carrier" and a "citizen
                  of the United States" within the meaning of that portion of
                  the United States Code comprising those provisions formerly
                  referred to as the Federal Aviation Act of 1958, and now
                  primarily codified in Title 49 of the United States Code, as
                  amended, and holds an "air carrier operating certificate
                  issued by the Secretary of Transportation" within the meaning
                  of 11 U.S.C. Section 1110. The routes presently operated by
                  the Company as described in the Prospectus are being operated
                  pursuant to valid certificates or authorizations issued by the
                  Federal Aviation Administration.

                           In addition, such counsel shall state that, although
                  such counsel has not undertaken to determine independently,
                  and therefore, does not assume any responsibility, explicitly
                  or implicitly, for, the accuracy, completeness or fairness of
                  the statements contained in the Registration Statement and
                  Prospectus, such


                                       10



                  counsel has participated in the preparation of the
                  Registration Statement and Prospectus, including review and
                  discussion of the contents thereof, and that, based upon and
                  subject to the foregoing and the other qualifications and
                  limitations set forth in such counsel's opinion, nothing has
                  come to the attention of such counsel that causes such counsel
                  to believe that (i) the Registration Statement or the
                  prospectus included therein (except for the Excluded
                  Information, as to which such counsel need not express any
                  belief) at the time the Registration Statement became
                  effective contained an untrue statement of a material fact or
                  omitted to state a material fact required to be stated therein
                  or necessary to make the statements therein not misleading or
                  (ii) the Prospectus (except for the Excluded Information, as
                  to which such counsel need not express any belief) as of its
                  date or as of the Closing Date contained or contains an untrue
                  statement of a material fact or omitted or omits to state a
                  material fact necessary in order to make the statements
                  therein, in the light of the circumstances under which they
                  were made, not misleading.

                           In giving such opinion and belief, such counsel may
                  (i) as to matters of fact, rely on certificates of the Company
                  or officers of the Company and other information from
                  governmental officials, (ii) state that it is opining only as
                  to matters of federal and Colorado law, and (iii) state that
                  its opinion and belief are based upon its participation in the
                  preparation of the Registration Statement and Prospectus and
                  any amendments or supplements thereto and review and
                  discussion of the contents thereof, but are without
                  independent check or verification, except as specified.

                  (aa) The Underwriters shall have received on the Closing Date
         an opinion of Shearman & Sterling LLP, counsel for the Underwriters,
         dated the Closing Date (or a letter in the case of Section 5(c)(x)),
         covering the matters referred to in Sections 5(c)(iv), 5(c)(v),
         5(c)(vii) (but only as to the statements in the Prospectus under
         "Underwriters") and 5(c)(x).

                  (bb) The Underwriters shall have received, on each of the date
         hereof and the Closing Date, a letter dated the date hereof or the
         Closing Date, as the case may be, in form and substance reasonably
         satisfactory to the Underwriters, from KPMG LLP, independent public
         accountants, containing statements and information of the type
         ordinarily included in accountants' "comfort letters" to underwriters
         with respect to the financial statements and certain financial
         information contained in the Registration Statement and the Prospectus;
         provided that the letter delivered on the Closing Date shall use a
         "cut-off date" not earlier than the date hereof.

                  (cc) The "lock-up" agreements, each substantially in the form
         of Exhibit A hereto, between you and the officers and directors, and
         holders of warrants, of the Company listed in Schedule II hereto
         relating to sales and certain other dispositions of shares of Common
         Stock or certain other securities, delivered to you on or before the
         date hereof, shall be in full force and effect on the Closing Date.


                                       11



                  (dd) The Underwriters shall have received on the Closing Date
         such documents as you may reasonably request with respect to the good
         standing of the Company, the due authorization and issuance of the
         Shares and other matters related to the issuance of the Shares.

                  The several obligations of the Underwriters to purchase
Additional Shares hereunder are subject to the delivery to you on the applicable
Option Closing Date of each of the documents referred to above dated as of the
Option Closing Date (except that insofar as any documents relate to Shares, they
may be limited to covering only Additional Shares).

                  Covenants of the Company. In further consideration of the
agreements of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

                  (ee) To furnish to you, without charge, five signed copies of
         the Registration Statement (including exhibits thereto) and for
         delivery to each other Underwriter a conformed copy of the Registration
         Statement (without exhibits thereto) and to furnish to you in New York
         City, without charge, prior to 10:00 a.m. New York City time on the
         business day next succeeding the date of this Agreement and during the
         period mentioned in Section 6(c) below, as many copies of the
         Prospectus and any supplements and amendments thereto or to the
         Registration Statement as you may reasonably request.

                  (ff) Before amending or supplementing the Registration
         Statement or the Prospectus, to furnish to you a copy of each such
         proposed amendment or supplement and not to file any such proposed
         amendment or supplement to which you reasonably object, and to file
         with the Commission within the applicable period specified in Rule
         424(b) under the Securities Act any prospectus required to be filed
         pursuant to such Rule.

                  (gg) If, during such period after the first date of the public
         offering of the Shares as in the reasonable opinion of counsel for the
         Underwriters the Prospectus is required by law to be delivered in
         connection with sales by an Underwriter or dealer, any event shall
         occur or condition exist as a result of which it is necessary to amend
         or supplement the Prospectus in order to make the statements therein,
         in the light of the circumstances when the Prospectus is delivered to a
         purchaser, not misleading, or if, in the reasonable opinion of counsel
         for the Underwriters, it is necessary to amend or supplement the
         Prospectus to comply with applicable law, forthwith to prepare, file
         with the Commission and furnish, at its own expense, to the
         Underwriters and to the dealers (whose names and addresses you will
         furnish to the Company) to which Shares may have been sold by you on
         behalf of the Underwriters and to any other dealers upon request,
         either amendments or supplements to the Prospectus so that the
         statements in the Prospectus as so amended or supplemented will not, in
         the light of the circumstances when the Prospectus is delivered to a
         purchaser, be misleading or so that the Prospectus, as amended or
         supplemented, will comply with law.

                  (hh) To endeavor to qualify the Shares for offer and sale
         under the securities or Blue Sky laws of such jurisdictions as you
         shall reasonably request.


                                       12



                  (ii) To make generally available to the Company's security
         holders and to you as soon as practicable an earning statement covering
         the twelve-month period ending September 30, 2004 that satisfies the
         provisions of Section 11(a) of the Securities Act and the rules and
         regulations of the Commission thereunder.

                  (jj) Whether or not the transactions contemplated in this
         Agreement are consummated or this Agreement is terminated, to pay or
         cause to be paid all expenses incident to the performance of its
         obligations under this Agreement, including: (i) the fees,
         disbursements and expenses of the Company's counsel and the Company's
         accountants in connection with the registration and delivery of the
         Shares under the Securities Act and all other fees or expenses in
         connection with the preparation and filing of the Registration
         Statement, any preliminary prospectus, the Prospectus and amendments
         and supplements to any of the foregoing, including all printing costs
         associated therewith, and the mailing and delivering of copies thereof
         to the Underwriters and dealers, in the quantities hereinabove
         specified, (ii) all costs and expenses related to the transfer and
         delivery of the Shares to the Underwriters, including any transfer or
         other taxes payable thereon, (iii) any expenses incurred in connection
         with the qualification of the Shares for offer and sale under state
         securities laws as provided in Section 6(d) hereof or in connection
         with the review and qualification of the offering of the Shares by the
         NASD, including any filing fees and the reasonable fees and
         disbursements of counsel for the Underwriters in connection with such
         qualification, (iv) all costs and expenses incident to listing the
         Shares on The Nasdaq National Market, (v) the cost of printing
         certificates representing the Shares, (vi) the costs and charges of any
         transfer agent, registrar or depositary, (vii) the costs and expenses
         of the Company relating to investor presentations on any "road show"
         undertaken in connection with the marketing of the offering of the
         Shares, including, without limitation, expenses associated with the
         production of road show slides and graphics, fees and expenses of any
         consultants engaged in connection with the road show presentations with
         the prior approval of the Company, travel and lodging expenses of the
         representatives and officers of the Company and any such consultants,
         and the cost of any aircraft chartered in connection with the road show
         and (viii) all other costs and expenses incident to the performance of
         the obligations of the Company hereunder for which provision is not
         otherwise made in this Section. It is understood, however, that except
         as provided in this Section, Section 7 entitled "Indemnity and
         Contribution" and the last paragraph of Section 9 below, the
         Underwriters will pay all of their costs and expenses, including fees
         and disbursements of their counsel, stock transfer taxes payable on
         resale of any of the Shares by them and any advertising expenses
         connected with any offers they may make.

                  Indemnity and Contribution. (kk) The Company agrees to
         indemnify and hold harmless each Underwriter, each person, if any, who
         controls any Underwriter within the meaning of either Section 15 of the
         Securities Act or Section 20 of the Exchange Act, and each affiliate of
         any Underwriter within the meaning of Rule 405 under the Securities
         Act, from and against any and all losses, claims, damages and
         liabilities (including, without limitation, any legal or other expenses
         reasonably incurred in connection with defending or investigating any
         such action or claim) caused by any untrue statement or alleged untrue
         statement of a material fact contained in the Registration Statement or
         any amendment thereof, any preliminary prospectus or the Prospectus (as
         amended or



                                       13



         supplemented if the Company shall have furnished any amendments or
         supplements thereto), or caused by any omission or alleged omission to
         state therein a material fact required to be stated therein or
         necessary to make the statements therein not misleading, except insofar
         as such losses, claims, damages or liabilities are caused by any such
         untrue statement or omission or alleged untrue statement or omission
         based upon information relating to any Underwriter furnished to the
         Company in writing by such Underwriter through you expressly for use
         therein; provided, however, that the foregoing indemnity agreement with
         respect to any preliminary prospectus shall not inure to the benefit of
         any Underwriter from whom the person asserting any such losses, claims,
         damages or liabilities purchased Shares, or any person controlling such
         Underwriter, if a copy of the Prospectus (as then amended or
         supplemented if the Company shall have furnished any amendments or
         supplements thereto) was not sent or given by or on behalf of such
         Underwriter to such person, if required by law so to have been
         delivered, at or prior to the written confirmation of the sale of the
         Shares to such person, and if the Prospectus (as so amended or
         supplemented) would have cured the defect giving rise to such losses,
         claims, damages or liabilities, unless such failure is the result of
         noncompliance by the Company with Section 6(a) hereof.

                  (ll) Each Underwriter agrees, severally and not jointly, to
         indemnify and hold harmless the Company, its directors, its officers
         who sign the Registration Statement and each person, if any, who
         controls the Company within the meaning of either Section 15 of the
         Securities Act or Section 20 of the Exchange Act to the same extent as
         the foregoing indemnity from the Company to such Underwriter, but only
         with reference to information relating to such Underwriter furnished to
         the Company in writing by such Underwriter through you expressly for
         use in the Registration Statement, any preliminary prospectus, the
         Prospectus or any amendments or supplements thereto.

                  (mm) In case any proceeding (including any governmental
         investigation) shall be instituted involving any person in respect of
         which indemnity may be sought pursuant to Section 7(a) or 7(b), such
         person (the "INDEMNIFIED PARTY") shall promptly notify the person
         against whom such indemnity may be sought (the "INDEMNIFYING PARTY") in
         writing and the indemnifying party, upon request of the indemnified
         party, shall retain counsel reasonably satisfactory to the indemnified
         party to represent the indemnified party and any others the
         indemnifying party may designate in such proceeding and shall pay the
         fees and disbursements of such counsel related to such proceeding. In
         any such proceeding, any indemnified party shall have the right to
         retain its own counsel, but the fees and expenses of such counsel shall
         be at the expense of such indemnified party unless (i) the indemnifying
         party and the indemnified party shall have mutually agreed to the
         retention of such counsel or (ii) the named parties to any such
         proceeding (including any impleaded parties) include both the
         indemnifying party and the indemnified party and representation of both
         parties by the same counsel would be inappropriate due to actual or
         potential differing interests between them. It is understood that the
         indemnifying party shall not, in respect of the legal expenses of any
         indemnified party in connection with any proceeding or related
         proceedings in the same jurisdiction, be liable for the fees and
         expenses of more than one separate firm (in addition to any local
         counsel) for all such indemnified parties and that all such fees and
         expenses shall be reimbursed as they are incurred. Such firm shall be
         designated in writing by Morgan Stanley & Co.


                                       14



         Incorporated, in the case of parties indemnified pursuant to Section
         7(a), and by the Company, in the case of parties indemnified pursuant
         to Section 7(b). The indemnifying party shall not be liable for any
         settlement of any proceeding effected without its written consent, but
         if settled with such consent or if there be a final judgment for the
         plaintiff, the indemnifying party agrees to indemnify the indemnified
         party from and against any loss or liability by reason of such
         settlement or judgment. Notwithstanding the foregoing sentence, if at
         any time an indemnified party shall have requested an indemnifying
         party to reimburse the indemnified party for fees and expenses of
         counsel as contemplated by the second and third sentences of this
         paragraph, the indemnifying party agrees that it shall be liable for
         any settlement of any proceeding effected without its written consent
         if (i) such settlement is entered into more than 30 days after receipt
         by such indemnifying party of the aforesaid request and (ii) such
         indemnifying party shall not have reimbursed the indemnified party in
         accordance with such request prior to the date of such settlement. No
         indemnifying party shall, without the prior written consent of the
         indemnified party, effect any settlement of any pending or threatened
         proceeding in respect of which any indemnified party is or could have
         been a party and indemnity could have been sought hereunder by such
         indemnified party, unless such settlement includes an unconditional
         release of such indemnified party from all liability on claims that are
         the subject matter of such proceeding.

                  (nn) To the extent the indemnification provided for in Section
         7(a) or 7(b) is unavailable to an indemnified party or insufficient in
         respect of any losses, claims, damages or liabilities referred to
         therein, then each indemnifying party under such paragraph, in lieu of
         indemnifying such indemnified party thereunder, shall contribute to the
         amount paid or payable by such indemnified party as a result of such
         losses, claims, damages or liabilities (i) in such proportion as is
         appropriate to reflect the relative benefits received by the Company on
         the one hand and the Underwriters on the other hand from the offering
         of the Shares or (ii) if the allocation provided by clause 7(d)(i)
         above is not permitted by applicable law, in such proportion as is
         appropriate to reflect not only the relative benefits referred to in
         clause 7(d)(i) above but also the relative fault of the Company on the
         one hand and of the Underwriters on the other hand in connection with
         the statements or omissions that resulted in such losses, claims,
         damages or liabilities, as well as any other relevant equitable
         considerations. The relative benefits received by the Company on the
         one hand and the Underwriters on the other hand in connection with the
         offering of the Shares shall be deemed to be in the same respective
         proportions as the net proceeds from the offering of the Shares (before
         deducting expenses) received by the Company and the total underwriting
         discounts and commissions received by the Underwriters, in each case as
         set forth in the table on the cover of the Prospectus, bear to the
         aggregate Public Offering Price of the Shares. The relative fault of
         the Company on the one hand and the Underwriters on the other hand
         shall be determined by reference to, among other things, whether the
         untrue or alleged untrue statement of a material fact or the omission
         or alleged omission to state a material fact relates to information
         supplied by the Company or by the Underwriters and the parties'
         relative intent, knowledge, access to information and opportunity to
         correct or prevent such statement or omission. The Underwriters'
         respective obligations to contribute pursuant to this Section 7 are
         several in proportion to the respective number of Shares they have
         purchased hereunder, and not joint.


                                       15



                  (oo) The Company and the Underwriters agree that it would not
         be just or equitable if contribution pursuant to this Section 7 were
         determined by pro rata allocation (even if the Underwriters were
         treated as one entity for such purpose) or by any other method of
         allocation that does not take account of the equitable considerations
         referred to in Section 7(d). The amount paid or payable by an
         indemnified party as a result of the losses, claims, damages and
         liabilities referred to in the immediately preceding paragraph shall be
         deemed to include, subject to the limitations set forth above, any
         legal or other expenses reasonably incurred by such indemnified party
         in connection with investigating or defending any such action or claim.
         Notwithstanding the provisions of this Section 7, no Underwriter shall
         be required to contribute any amount in excess of the amount by which
         the total price at which the Shares underwritten by it and distributed
         to the public were offered to the public exceeds the amount of any
         damages that such Underwriter has otherwise been required to pay by
         reason of such untrue or alleged untrue statement or omission or
         alleged omission. No person guilty of fraudulent misrepresentation
         (within the meaning of Section 11(f) of the Securities Act) shall be
         entitled to contribution from any person who was not guilty of such
         fraudulent misrepresentation. The remedies provided for in this Section
         7 are not exclusive and shall not limit any rights or remedies which
         may otherwise be available to any indemnified party at law or in
         equity.

                  (pp) The indemnity and contribution provisions contained in
         this Section 7 and the representations, warranties and other statements
         of the Company contained in this Agreement shall remain operative and
         in full force and effect regardless of (i) any termination of this
         Agreement, (ii) any investigation made by or on behalf of any
         Underwriter, any person controlling any Underwriter or any affiliate of
         any Underwriter or by or on behalf of the Company, its officers or
         directors or any person controlling the Company and (iii) acceptance of
         and payment for any of the Shares.

                  Termination. The Underwriters may terminate this Agreement by
notice given by you to the Company, if after the execution and delivery of this
Agreement and prior to the Closing Date (i) trading generally shall have been
suspended or materially limited on, or by, as the case may be, any of the New
York Stock Exchange, the American Stock Exchange or The Nasdaq National Market,
(ii) trading of any securities of the Company shall have been suspended on any
exchange or in any over-the-counter market, (iii) a material disruption in
securities settlement, payment or clearance services in the United States shall
have occurred, (iv) any moratorium on commercial banking activities shall have
been declared by either Federal or New York State authorities or (v) there shall
have occurred any outbreak or escalation of hostilities or any change in
financial markets or any calamity or crisis that, in your judgment, is material
and adverse and which singly or together with any other event specified in this
clause (v), makes it, in your judgment, impracticable or inadvisable to proceed
with the offer, sale or delivery of the Shares on the terms and in the manner
contemplated in the Prospectus.

                  Effectiveness; Defaulting Underwriters. This Agreement shall
become effective upon the execution and delivery hereof by the parties hereto.

                  If, on the Closing Date or an Option Closing Date, as the case
may be, any one or more of the Underwriters shall fail or refuse to purchase
Shares that it has or they have agreed to


                                       16



         purchase hereunder on such date, and the aggregate number of Shares
         which such defaulting Underwriter or Underwriters agreed but failed or
         refused to purchase is not more than one-tenth of the aggregate number
         of the Shares to be purchased on such date, the other Underwriters
         shall be obligated severally in the proportions that the number of Firm
         Shares set forth opposite their respective names in Schedule I bears to
         the aggregate number of Firm Shares set forth opposite the names of all
         such non-defaulting Underwriters, or in such other proportions as you
         may specify, to purchase the Shares which such defaulting Underwriter
         or Underwriters agreed but failed or refused to purchase on such date;
         provided that in no event shall the number of Shares that any
         Underwriter has agreed to purchase pursuant to this Agreement be
         increased pursuant to this Section 9 by an amount in excess of
         one-ninth of such number of Shares without the written consent of such
         Underwriter. If, on the Closing Date, any Underwriter or Underwriters
         shall fail or refuse to purchase Firm Shares and the aggregate number
         of Firm Shares with respect to which such default occurs is more than
         one-tenth of the aggregate number of Firm Shares to be purchased, and
         arrangements satisfactory to you and the Company for the purchase of
         such Firm Shares are not made within 36 hours after such default, this
         Agreement shall terminate without liability on the part of any
         non-defaulting Underwriter or the Company. In any such case either you
         or the Company shall have the right to postpone the Closing Date, but
         in no event for longer than seven days, in order that the required
         changes, if any, in the Registration Statement and in the Prospectus or
         in any other documents or arrangements may be effected. If, on an
         Option Closing Date, any Underwriter or Underwriters shall fail or
         refuse to purchase Additional Shares and the aggregate number of
         Additional Shares with respect to which such default occurs is more
         than one-tenth of the aggregate number of Additional Shares to be
         purchased on such Option Closing Date, the non-defaulting Underwriters
         shall have the option to (i) terminate their obligation hereunder to
         purchase the Additional Shares to be sold on such Option Closing Date
         or (ii) purchase not less than the number of Additional Shares that
         such non-defaulting Underwriters would have been obligated to purchase
         in the absence of such default. Any action taken under this paragraph
         shall not relieve any defaulting Underwriter from liability in respect
         of any default of such Underwriter under this Agreement.

                  If this Agreement shall be terminated by the Underwriters, or
any of them, because of any failure or refusal on the part of the Company to
comply with the terms or to fulfill any of the conditions of this Agreement, or
if for any reason the Company shall be unable to perform its obligations under
this Agreement, the Company will reimburse the Underwriters or such Underwriters
as have so terminated this Agreement with respect to themselves, severally, for
all out-of-pocket expenses (including the reasonable fees and disbursements of
their counsel) reasonably incurred by such Underwriters in connection with this
Agreement or the offering contemplated hereunder.

                  Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

                  Applicable Law. This Agreement shall be governed by and
construed in accordance with the internal laws of the State of New York.

                  Headings. The headings of the sections of this Agreement have
been inserted for convenience of reference only and shall not be deemed a part
of this Agreement.


                                       17




                              Very truly yours,

                              FRONTIER AIRLINES, INC.



                              By:
                                  ----------------------------------------------
                                  Name:  Jeff S. Potter
                                  Title: President and Chief Executive
                                  Officer


                              By:
                                  ----------------------------------------------
                                  Name:  Paul H. Tate
                                  Title: Chief Financial Officer

Accepted as of the date hereof

MORGAN STANLEY & CO. INCORPORATED
MERRILL LYNCH, PIERCE, FENNER & SMITH
          INCORPORATED
RAYMOND JAMES & ASSOCIATES, INC.


Acting severally on behalf of themselves
   and the several Underwriters named in
   Schedule I hereto.

By:  MORGAN STANLEY & CO. INCORPORATED



By:
   -----------------------------------------
   Name:  Kenneth G. Pott
   Title: Managing Director


                                       18