Originally Posted by
Bluedriver
US Air closed PIT long before they merged with AA. DL closed MEM.
in 2015 UA closed their pilot base at SEA. Not too sure how long it had been open but they once flew DC-3s out of there.

Back in the 60s I believe it was the most senior domicile UA had. But after absorbing Northwest, Delta sort of ran them out. A lot of very senior people found themselves commuting to SFO.
There are no guaranteed safe bases. In the course of a career, becoming a commuter sometime is damn near inevitable.