Originally Posted by
zrs70
If you have high status on UA, call them first, as they will want to take care of you.
Agreed. I had this happen at HPN with AA. The only thing to keep in mind is that now you have a DL ticket and UA will have to work with DL to transfer it back to UA. Depending on where you are and who has more flights going out, it may be better to stick with DL. But if you're at the airport already, I'd try the UA counter first too. And you won't have to wait in line behind the rest of the people on your DL flight.