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                                                                       Exhibit 5





                                 April 6, 2001



Mesa Air Group, Inc.
410 North 44th Street, Ste. 700
Phoenix, AZ   85008

Ladies and Gentlemen:

            I refer to the Registration Statement on Form S-8 of Mesa Air Group,
Inc., a Nevada corporation (the "Company"), to be filed with the Securities and
Exchange Commission on or about April 6, 2001 for the purpose of registering
under the Securities Act of 1933, as amended, 500,000 shares of Common Stock, no
par value per share ("Common Stock"), of the Company. These shares of Common
Stock are proposed to be issued upon the purchase of stock in connection with
the Mesa Air Group, Inc. 401(K) Plan (the "Plan").

            I have examined the Company's Articles of Incorporation, as amended,
the Bylaws of the Company, as currently in effect, minutes of the applicable
meetings of the Board of Directors and stockholders of the Company, together
with such other corporate records, certificates of public officials and other
documents as I have deemed relevant to this opinion.

            Based upon the foregoing, it is my opinion that:

                  1. The Company is a corporation duly organized, validly
         existing and in good standing under the laws of the State of Nevada.

                  2. All necessary corporate action has been taken to authorize
         the issuance of the aforesaid 500,000 shares of Common Stock and all
         such shares of Common Stock as shall be issued and paid for as
         described in the Plan shall be, when so issued, legally issued, fully
         paid and nonassessable.

            I hereby consent to the reference to myself under the heading
"Interests of Named Experts and Counsel" in the Registration Statement. I also
consent to the inclusion of this opinion in the Registration Statement as an
exhibit thereto. In giving this consent, I do not thereby admit that I am within
the category of persons whose consent is required under Section 7 of the
Securities Act of 1933, as amended, or the rules and regulations thereunder.

                                                     Very truly yours,



                                                     /s/ Brian S. Gillman

                                                     Brian S. Gillman





