| 14/03/1991 | N531UA | roll out. |
| 04/04/1991 | N531UA | first flight. |
| 19/04/1991 | N531UA | del United Airlines; '5431'. |
| 21/06/1991 | N531UA | rgd to Wilmington Trust Company. |
| 06/01/2009 | N531UA | at Los Angeles in 2004 United Airlines c/s with "United" titles (repainted after 29/09/2008). |
| 08/09/2009 | N531UA | last service: Boston-San Francisco as UAL179. |
| 02/10/2009 | N531CN | registration reserved by Wilmington Trust Company. |
| 00/12/2009 | N531UA | ret to lessor. |
| 04/12/2009 | N531UA | ferried San Francisco-Jacksonville/VQQ as UAL9927; for conversion to freighter. |
| 17/03/2010 | N531UA | at Jacksonville/VQQ in basic United Airlines c/s. |
| 24/06/2010 | N531UA | bt Aeroturbine Inc. |
| 29/06/2010 | N531UA | bt Aerolease 757 MSN 25042 LLC. |
| 27/07/2010 | N531UA | rgd to Aerolease 757 MSN 25042 LLC. |
| 28/07/2011 | N531UA | bt Cargo Aircraft Management Inc. |
| 00/12/2011 | N531UA | conversion to freighter completed by Flightstar at Jacksonville/VQQ. |
| 01/01/2012 | N531UA | lt Capital Cargo International Airlines (in new c/s). |
| 11/03/2013 | N531UA | Capital Cargo International Airlines ceased operations; lease transferred to Air Transport International. |
| 02/11/2014 | N531UA | at Cincinnati in basic Capital Cargo International Airlines c/s without titles. |
| 26/07/2015 | N531UA | ferried Covington-Roswell as ATN531; for repaint. |
| 07/08/2015 | N531UA | ferried Roswell-Los Angeles as ATN531 in full DHL c/s |
