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The Contract of Carriage is the primary document governing the terms and conditions of travel on United Airlines. Specifically, it contains the basic rules and procedures governing valid fares and routes (including forbidden ticketing policies such as hidden-city ticketing, etc.), United's responsibilities in terms of providing services in a timely fashion and/or protection of the passenger during irregular operations, cancellation allowances and fee waivers, and other basic travel policies.

United periodically revises its Contract of Carriage. The current contract and all known/available historical revisions are as follows:

24 Jun 2009: [1]
13 May 2009: [2]
22 Apr 2009: [3]
20 Apr 2009: [4]
20 Mar 2009: [5]
06 Mar 2009: [6]
11 Dec 2008: [7]
03 Dec 2008: [8]
25 Nov 2008: [9]
22 Oct 2008: [10]
14 Oct 2008: [11]
06 Oct 2008: [12]
01 Oct 2008: [13]
27 Jun 2008: [14]
12 Jun 2008: [15]
20 May 2008: [16]
17 Mar 2008: [17]
04 Feb 2008: [18]
10 Dec 2007: [19]
12 Feb 2007: [20]
15 Jan 2007: [21]
21 Dec 2006: [22]
30 Aug 2006: [23]
06 Jul 2006: [24]
12 May 2006: [25]
28 Mar 2006: [26]
08 Mar 2006: [27]
09 Feb 2006: Not available
11 Aug 2005: [28]
18 Mar 2005: [29]
06 Jan 2005: Not available
20 Oct 2004: Not available
29 Jul 2004: Not available
11 Jun 2004: [30]
19 Dec 2003: [31]
25 Sep 2003: Not available