| Line number | 0426 |
| Type | 222 |
| Engines | Pratt & Whitney PW2040 |
| Mode S | A7012E |
| Configuration | F24PY50Y108 |
| Name | |
|
| Date | Registration | Remarks |
| 06/01/1992 | N550UA | roll out. |
| 28/01/1992 | N550UA | first flight. |
| 11/02/1992 | N550UA | del United Airlines; '5550'. |
| 11/02/1992 | N550UA | bt Nynex Credit Corporation; opb United Airlines on lease. |
| 28/02/1992 | N550UA | rgd to Wilmington Trust Company. |
| 22/02/2006 | N550UA | bt & rgd US Bank; opb United Airlines on lease. |
| 28/10/2007 | N550UA | at Boston in 2004 United Airlines c/s with "United" titles; (repainted after 00/00/2007). |
| 02/05/2010 | N550UA | United Airlines agreed with Continental Airlines to merge into United Airlines. |
| 01/10/2010 | N550UA | United Airlines merged with Continental Airlines into United Airlines. |
| 09/02/2012 | N550UA | at Los Angeles in 2010 United Airlines c/s with "United" titles (repainted after 04/12/2011). |
| 03/03/2014 | N550UA | bt United Airlines Inc. |
| 04/03/2014 | N550UA | rgd to United Airlines Inc. |
| 02/04/2016 | N550UA | last service: Lihue-San Francisco as UAL1152 (arrived 03/04/2016). |
| 08/04/2016 | N550UA | ferried San Francisco-Goodyear as UAL2143; for storage. |
| 28/07/2016 | N550UA | at Goodyear/GYR in full United Airlines c/s; missing both engines. |
| 13/03/2017 | N550UA | registration cancelled. |
| 00/00/2017 ? | N550UA | scrapping completed. |
