Hello, on a previous post I asked a specific question about limits on bringing things back through customs;
this is a different question.
We are traveling to Paris from Seattle with a 4 hour layover in London. Our return trip has us going from Paris to Dallas and switching planes to get back to Seattle. There's a 2 1/2 hour layover in Dallas. All of the flights are through British Air but the return is via American Airlines code sharing.
I've been assuming that we would go through customs in Seattle but now I'm wondering how that could be if we switch from an international flight to a domestic flight. Does anyone know how customs is handled in this case? Thanks!!