| 10/08/1990 | N520UA | roll out. |
| 06/09/1990 | N520UA | first flight. |
| 21/09/1990 | N520UA | del United Airlines; '5420'. |
| 24/09/1990 | N520UA | rgd to United Airlines Inc. |
| 05/12/1990 | N520UA | bt & rgd to Wells Fargo Bank Northwest; opb United Airlines on lease. |
| 09/08/2009 | N520UA | at Los Angeles in 2004 United Airlines c/s (repainted after 18/12/2008). |
| 02/05/2010 | N520UA | United Airlines agreed with Continental Airlines to merge into United Airlines. |
| 01/10/2010 | N520UA | United Airlines merged with Continental Airlines into United Airlines. |
| 28/01/2012 | N520UA | at Las Vegas in 2010 United Airlines c/s with "United" titles (repainted after 23/12/2011). |
| 06/05/2014 | N520UA | last service: Boston-San Francisco as UAL433; ferried San Francisco-Goodyear as UAL2124; for storage. |
| 09/04/2017 | N520UA | at Goodyear in United Airlines with titles and tail logo (partly) painted out; missing both engines. |
