You can't do a two cabin upgrade from Y to GF anyway.
IAH-HNL is currently sUA 3cabin, but HNL-GUM is sUA 2cabin (the plane from ORD-HNL). Plus upgrading "direct" flights like that is a PITA.
But nice mileage run you got, adding more than 2000 miles to the shortest UA/*A path.
Last edited by mduell; Feb 3, 2013 at 3:18 pm