Originally Posted by ogmios
Apologies, I hardly ever fly on codeshares. I only did this time to burn a credit I had with AC. I can't remember the last time in fact!
I'll have to ckin with AC, and try to get my seat changed with the GA :-)
No, no; check in with UA. To be more clear, check in with the airline operating the airplane. AC and UA aren't even in the same terminal at ORD.