After passing through immigration, the baggage claim area and customs on the 2nd floor of International Terminal G, passengers connecting to a US domestic flight operated by United Airlines should drop off their baggage at the baggage counter for connecting flights and proceed to the check-in counter for United Airlines domestic flights in Terminal 3. Passengers connecting to international flights should proceed on foot toward the gates. Passengers connecting to US domestic flights operated by other airlines should proceed on foot toward Terminal 1. Domestic Terminals 1, 2, and 3, the International Terminal, Garage G and Garage A are connected by the free inter-terminal shuttle (AirTrain).