Originally Posted by
channa
You can get AA or DL in weather, but CO likes to throw up fiery hoops during IRROPS.
They may have better luck at the airport.
Your advice is out of date. CO doesn't exist anymore.
OP - there are frequent posts here from the last few months from people who have been rebooked on non-*A partners in situations like this with little or no trouble at all. Definitely ask at the airport rather than over the phone though, channa got that part right.