Originally Posted by
SFO 1K
I have had multi-segment trips starting with a domestic segment connecting to International, and I have successfully used online check in before. Not sure why you think you can't?
Easy CheckIn Online asks for your passport details, no need to have it scanned.
Yes, I input all that information also when asked. When you print out the document, it prints out only your flight information without any seat assignment. It is not the same as the ones you get for a pure domestic itinerary. It does not have seat assignment, bar code, etc. Someone at UA has to physically scan your passport. That has been my experience for international travel.