1 Exhibit 5 [SACHNOFF & WEAVER, LTD. LETTERHEAD] January 15, 1997 USFreightways Corporation 9700 Higgins Road, Suite 570 Rosemont, Illinois 60018 Gentlemen: We have acted as counsel to USFreightways Corporation, a Delaware corporation (the "Company"), in connection with the Registration Statement on Form S-3, as amended (the "Registration Statement"), filed by the Company under the Securities Act of 1933, as amended, with the Securities and Exchange Commission (the "Commission"), relating to the sale of up to 3,105,000 shares (the "Shares") of the Company's Common Stock, par value $.01 per share. We have examined the Registration Statement and the form of the Purchase Agreement filed with the Commission as an exhibit to the Registration Statement (the "Purchase Agreement"). In addition, we have reviewed such other documents and have made such further investigations as we have deemed necessary to enable us to express the opinion hereinafter set forth. We hereby advise you that in our opinion the Shares have been duly authorized by the Company and, upon payment and delivery in accordance with the Purchase Agreement, will be validly issued, fully paid and nonassessable. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to us under the caption "Legal Matters" in the Registration Statement. In giving this consent, we do not hereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended or the rules and regulations of the Securities and Exchange Commission. Very truly yours, /s/ SACHNOFF & WEAVER, LTD.