9/18/01, UA IAD-BOS, evening flight, having connected from LHR-IAD.
737, with four pax, total. Two were uniformed UA flight crew. I was in the UK on 9/11, got stuck over there when US airspace closed, and finally made it back on the 18th.
I was the only one in coach. Didn't really care they didn't move me up to First. Honestly, it's only these posts that made it even cross my mind.