Originally Posted by
paperwastage
i'm thinking that <24hour layover, so the initial checkin during domestic leg should have gone thru all the visa/Travel-ready checks for int'l leg, so you should be have the int'l boardingpass
That isn’t generally true. UA’s check-in computers use their own logic for when a flight is connecting and when it isn’t, and 24h doesn’t come into consideration. It’s trying to calculate what’s an overnight transfer and what isn’t, and if it decides that the transfer is overnight, it generally will sever the check-ins. For example, I’ve had a flight AUS-SFO-Asia, where AUS-SFO arrived the night before SFO-Asia, and it checked my luggage to SFO, I didn’t have to show my passport, INTL wasn’t on my AUS-SFO boarding pass, etc.