Hi everybody, I'm flying next week from CMH to IAD to MUC on a UA. I am currently booked on a Y fare economy seat and would like to upgrade to Business Class. On the UA website, it says that I can request an upgrade by using 20,000 miles and paying a $250 co-pay. However, when I click on the "Upgrade or Cancel Individual Segments" it says on the IAD - MUC that "this type of upgrade is not available for international flights." Does that mean that I can't request an upgrade? I've looked at seating avaiability for the flight and seen that there are still plenty of business class seats are still available. So, I'm not sure if I just can't upgrade because I'm not an elite traveler or if something else is stopping me from upgrading that segment. Any help or advice would be greatly appreciated. Thanks!