Good afternoon everyone: Do any of you experienced United Airlines travelers have any suggestions on how to upgrade two award tickets I booked for my and my wife on our first Europe trip to Business/First Class? I used basically all my Mileage Plus miles to book to tickets that depart from PTY and arrive in LHR departingThursday the 6th and returning from CDG to PTY on September the 20th. Basically the only segment of each flight that I want to upgrade are the transatlantic flights IAH-LHR and CDG-IAH. I am a Continental Chase Card member as well, but don't have any special Mileage Plus Status since I don't really fly that much. Any help out there would be greatly appreciated. Being that this is mine and my wife's first trip to Europe, I would love to be able to fly first class without having to put one of my kidneys on Ebay. Thanks and have a fantastic day!