Exhibit 16 [Arthur Andersen LLP Letterhead] May 28, 2002 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Sir/Madam: We have read Item 4, paragraphs 2 and 3, included in the Form 8-K dated May 28, 2002 of Alaska Air Group, Inc., to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/ Arthur Andersen LLP - ----------------------- Arthur Andersen LLP Cc: Bradley D. Tilden Executive Vice President-Finance and Chief Financial Officer Alaska Air Group, Inc