| 28/06/1991 | N539UA | roll out. |
| 24/07/1991 | N539UA | first flight. |
| 07/08/1991 | N539UA | del United Airlines; '5439'. |
| 25/06/1992 | N539UA | bt John Hancock Leasing Corporation; opb United Airlines on lease. |
| 25/06/1992 | N539UA | rgd to Wilmington Trust Company. |
| 23/02/2006 | N539UA | bt & rgd to US Bank, Hartford, CT; opb United Airlines on lease. |
| 02/05/2010 | N539UA | United Airlines agreed with Continental Airlines to merge into United Airlines. |
| 01/10/2010 | N539UA | United Airlines merged with Continental Airlines into United Airlines. |
| 20/11/2011 | N539UA | at Las Vegas in 2010 United Airlines c/s with "United" titles (repainted after 02/05/2011). |
| 04/02/2014 | N539UA | bt United Airlines Inc. |
| 05/02/2014 | N539UA | rgd to United Airlines Inc. |
| 17/07/2014 | N539UA | last service: Chicago O'Hare-San Francisco as UAL741. |
| 13/08/2014 | N539UA | ferried San Francisco-Victorville as UAL2150. |
| 15/08/2014 | N539UA | bt Federal Express Corporation. |
| 27/08/2014 | N539UA | rgd to Federal Express Corporation. |
| 22/09/2014 | N778FD | registration reserved by Federal Express Corporation. |
| 16/10/2014 | N778FD | Federal Express Corporation; re-rgd. |
| 21/10/2015 | N778FD | ferried Victorville-Anchorage-Osaka/Kansai-Singapore/Seletar as FDX9873 (arrived 24/10/2015); for conversion to freighter. |
| 07/05/2016 | N778FD | ferried Singapore/Seletar-Osaka/Kansai-Anchorage-Memphis as FDX9828 (arrived 09/05/2016); after conversion to freighter. |
| 10/05/2016 | N778FD | in service: Memphis-Palm Beach International as FDX1489. |
