EXHIBIT 5.1


 December 7, 2001

 Pegasus Solutions, Inc.
 3811 Turtle Creek Boulevard, Suite 1100
 Dallas, Texas 75219

      Re:  Registration Statement on Form S-8

 Ladies and Gentlemen:

      We have  acted  as  counsel to  Pegasus  Solutions,  Inc.,  a  Delaware
 corporation  (the  "Company"),  in  connection  with  its  filing  with  the
 Securities and  Exchange Commission  (the  "Commission") of  a  Registration
 Statement on Form  S-8 (the "Registration  Statement") under the  Securities
 Act of 1933, as amended. The Registration Statement covers 3,214,728  shares
 of common stock, $0.01 par value per share (the "Shares"), of the Company to
 be issued pursuant to the Pegasus Solutions, Inc. 1997 Amended Stock  Option
 Plan (the "Plan").

      In rendering this opinion we have examined the Registration  Statement,
 the Company's Certificate of  Incorporation and Bylaws,  each as amended  to
 date, and such corporate records, documents  and instruments of the  Company
 and  such   certificates   of   public   officials,   have   received   such
 representations from  officers  of  the  Company,  and  have  reviewed  such
 questions of law as in our  judgment are necessary, relevant or  appropriate
 to enable us to render the opinion expressed below. In such examination,  we
 have assumed  the genuineness  of all  signatures, the  authenticity of  all
 corporate records, documents and instruments  submitted to us as  originals,
 the conformity to  original documents of  all documents submitted  to us  as
 conformed, certified or photostatic copies thereof, and the authenticity  of
 the originals of such conformed, certified or photostatic copies.

      Based upon such examination and review and upon representations made to
 us by officers of the Company, we are of the opinion that upon issuance  and
 delivery in accordance with the terms  and conditions of the Plan, and  upon
 receipt by  the  Company  of  the  full  consideration  for  the  Shares  as
 determined pursuant to the  Plan, the Shares will  be legally issued,  fully
 paid and nonassessable shares of common stock of the Company.

      We consent to the use of this opinion as an exhibit to the Registration
 Statement, and further consent to the use of our name wherever appearing  in
 the Registration Statement and any amendment thereto.

                                    Very truly yours,

                                    LOCKE LIDDELL & SAPP LLP



                                    By:  /s/ Whit Roberts
                                         ----------------
                                         Whit Roberts