Originally Posted by
FlyingUnderTheRadar
Also you must have your passport physically checked at some point. Easier to have that done before the domestic flight as there always seem to be lines at the international flight.
If the airline will check it then. Before my last connection to an international flight, with no checked baggage, I tried to have gate agent check my passport. He looked at it but made no entry in the computer. At the international gateway, MIA, the AA gate agent checked everyone's passport.