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| Domestic → Domestic | ~45 min minimum |
| International ↔ Domestic | ~90 min minimum |
| International → International | ~75 min minimum |
The world's busiest airport, but its train system between concourses is fast and reliable — connections are generally smooth if you make the train.
As a general guideline: about 45 minutes for a domestic-to-domestic connection, 90 minutes when one leg is international, and 75 minutes for international-to-international connections. Always confirm your specific minimum with your airline, since it can vary by terminal and itinerary.
The world's busiest airport, but its train system between concourses is fast and reliable — connections are generally smooth if you make the train.
Add about 30 minutes on top of the minimum connection time for a comfortable buffer — so roughly 75 minutes for domestic-to-domestic, 120 minutes for a mixed connection, or 105 minutes for international-to-international.
Check in online and get your boarding pass before landing if possible, go straight to your gate if you only have carry-on luggage, and if you do miss the connection, head to your airline's transfer desk or app rather than a general check-in line for faster rebooking.