Originally Posted by
WindowSeatFlyer
The crews stay onboard or on the jet bridge, and don’t have to go through CBP clearance upon return to the US.
Strange as US requires crews to clear when doing direct turns in the US. I thouhht at one point they did have to clear CBSA/CBP before returning. I know AM crews hated this flying into the US. Say MEX-SAT-MEX, direct turn, crew had to get off clear US immigration and security, then get back on. They couldn't just stay onboard the plane.