Exhibit 10.38 Amendment to Offer Letter The offer of employment, dated December 30, 1999, by and between priceline.com Incorporated and Jeffery H. Boyd, shall be amended by adding a new sentence at the end of the fourth paragraph thereof reading in full as follows: "The term Options, except as used in this fourth paragraph, shall include any and all options to purchase shares of the Company's common stock granted to you under the Company's 1999 Omnibus Plan (including any amendments thereto), whether granted on the date hereof or thereafter." PRICELINE.COM INCORPORATED ---------------------------- By: Rick Braddock Title: Chairman JEFFERY H. BOYD ---------------------------- Dated: August 21, 2000