At many airports, American Airlines operates out of multiple terminals. For example, at Los Angeles International Airport (LAX), American Airlines operates out of both Terminal 4 and Terminal 5. At John F. Kennedy International Airport (JFK) in New York, American Airlines operates out of Terminal 8. At O’Hare International Airport (ORD) in Chicago, American Airlines operates out of Terminal 3.
It’s important to arrive at the airport in plenty of time to check-in, clear security, and board your flight. American Airlines recommends that p****engers arrive at least two hours before a domestic flight and three hours before an international flight. This will give you enough time to check in, clear security, and make it to your gate on time.