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| Domestic → Domestic | ~45 min minimum |
| International ↔ Domestic | ~90 min minimum |
| International → International | ~75 min minimum |
A major United hub with generally smooth connections within the same terminal complex.
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.
A major United hub with generally smooth connections within the same terminal complex.
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.