6-1162-RLL-934R2 Southwest Airlines Co. P.O. Box 36611 - Love Field Dallas, Texas 75235 Subject:	Letter Agreement No. 6-1162-RLL-934R1 to 		Purchase Agreement No. 1810 - 		Disclosure of Confidential Information This Letter Agreement amends Purchase Agreement No. 1810 dated January 19, 1994 (the Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Buyer) relating to Model 737-7H4 aircraft (the Aircraft). All terms used herein and in the Agreement, and not defined herein, will have the same meaning as in the Agreement. 1.	Buyer understands that certain commercial and financial information contained in the documents listed below (Confidential Documents) is considered by Boeing as confidential. 2.	Buyer agrees that it will treat the Confidential Documents and the information contained therein as confidential and will not, without the prior written consent of Boeing, disclose such Confidential Documents or any information contained therein to any other person or entity except as may be required by (i) applicable law or governmental regulations, or (ii) for financing the Aircraft in accordance with the provisions of Article 10 of the Agreement. *** 	Pursuant to 17 CFR, 240.24b-2, confidential information has been omitted and has been filed separately with the Securities and Exchange Commission pursuant to a Confidential Treatment Application filed with the Commission. 3.	In connection with any such disclosure or filing of the Confidential Documents, or the information contained therein, pursuant to any such applicable law or governmental regulation, Buyer will request and use its best reasonable efforts to obtain confidential treatment of such Confidential Documents and the information contained therein. Boeing agrees to cooperate with Buyer in making and supporting its request for confidential treatment. 	Schedule of Confidential Documents 		1.	Letter Agreement No. 6-1162-RLL-932 		2.	Letter Agreement No. 6-1162-RLL-933 		3.	Letter Agreement No. 6-1162-RLL-934 		4.	Letter Agreement No. 6-1162-RLL-935 		5.	Letter Agreement No. 6-1162-RLL-936 		6.	Letter Agreement No. 6-1162-RLL-937 		7.	Letter Agreement No. 6-1162-RLL-938 		8.	Letter Agreement No. 6-1162-RLL-939 		9.	Letter Agreement No. 6-1162-RLL-940 		10.	Letter Agreement No. 6-1162-RLL-941 		11.	Letter Agreement No. 6-1162-RLL-942 		12.	Letter Agreement No. 6-1162-RLL-943 		13.	Letter Agreement No. 6-1162-RLL-944 		14.	Letter Agreement No. 6-1162-RLL-945 		15.	Letter Agreement No. 6-1162-RLL-1855 		16.	Letter Agreement No. 6-1162-RLL-1856 		17.	Letter Agreement No. 6-1162-RLL-1857 		18.	Letter Agreement No. 6-1162-RLL-1858 		19.	Letter Agreement No. 6-1162-RLL-2036 		20.	Letter Agreement No. 6-1162-RLL-2037 		21. 	Letter Agreement No. 6-1162-RLL-2073 		22. 	Letter Agreement No. 6-1162-KJJ-054 		23. 	Letter Agreement No. 6-1162-KJJ-055 		24. 	Letter Agreement No. 6-1162-KJJ-056 		25. 	Letter Agreement No. 6-1162-KJJ-057 		26. 	Letter Agreement No. 6-1162-KJJ-058 4. 	Confidential Treatment. 	Buyer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential. Buyer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement. Very truly yours, THE BOEING COMPANY By /s/ Alan Mulally Its Attorney-in-Fact 	President 	Commercial Airplanes Group ACCEPTED AND AGREED TO as of this date: June 22, 2000 SOUTHWEST AIRLINES CO. By /s/ Herb Kelleher Its CEO Southwest Airlines Co. 6-1162-RLL-934R2 P.A. No. 1810 K/SWA		SA-13