My guess would be UA hubs - IAH has been hanging on by a thread, and ORD isn't a wild success either. DEN could go either way. SFO is the big question I guess, I could see UA picking up some frequencies.

It would be really cool if UA started doing HNL-JFK. That would give JB flyers a nonstop option to Hawaii once the Hawaiian partnership dies off next month, and any UA widebody surely beats the Delta 767-300ER.

-J.