I too got stuck in the flight delay mess in the northeast last weekend. I was scheduled to fly DCA-LGA on Saturday noon (on US Airways). Sat on the plane at DCA for almost 3 hours, then the flight was finally cancelled -- which really threw a wrench in my plans, since I had already made a hotel reservation in NY, and had a theater ticket for 8 pm that night.
After talking with some fellow frustrated passengers, I decided to hop on the metro to Union Station and caught the 4:05 pm Amtrak (Northeast Direct). Arrived in NY at 7:20 pm, just in time to check into my hotel (which thankfully was just a few subway stops from Penn Station), and get to the theater before the lights went down!
I'd definitely take the train again, especially for last-minute trips; maybe next time I'll try first class (thanks for the trip report, 0524) or the Acela. On my return on Sunday night, all the coach cars were overcrowded.
[This message has been edited by skyblue (edited 06-26-2001).]