Originally Posted by
enviroian
This sounds like a route UA owns and probably has the best frequency on. Maybe AA doesn't want to compete.
AA has 5 ORD-SFO flights. 5 flights isnt "doesnt want to compete". UA has 9, as it's a hub-hub route so the OP has an option (although the 2 morning flights are on a 739 and 753)
Also a lot of widebodies will return to Europe service. That's how it is every year.