Originally Posted by
sim510
I note that "3 seats" were available for ZRH-IAD, but IAD-ORD is noted as waitlist only.
IME, that means you are upgrading ZRH-ORD, and ZRH-IAD will clear right now and you will be wait listed for IAD-ORD. I would jump on it while you can get the ZRH-IAD. IAD-ORD is very short.