How long does it take to walk terminal 3 at O Hare?

Domestic Terminals 1, 2, and 3 are connected to each other and you can easily walk between them or take moving sidewalks and escalators. The walk from Terminal 1 to Terminal 2 takes about 10 minutes, and from Terminal 1 to Terminal 3 can take up to 20 minutes if you're walking from farthest gate to farthest gate.



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Domestic Connections Terminals 1-3, are connected and easily accessible from each other. If you… Access Terminals 1-3 upon arrival without having to clear the security checkpoints. If you have a connecting domestic flight via two different carriers, please contact your airlines.

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If you arrive on an international flight (excluding those who have arrived from a preclearance airport), you must clear U.S. Customs and Border Protection (CBP) checkpoints and claim all checked luggage before being allowed to enter the United States, including travelers with connecting flights.

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The busiest times are 6-8 am, and 3-5 pm.

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If you're connecting on the same airline, in the same terminal, then yes, it should be enough time. Check first the airline's and flight's on-time record. If you need to change airlines, and terminals, it could be tight.

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If your connecting flight leaves from a notoriously busy airport, it may be necessary to arrange a layover that's at least three hours long. The recommended layover time for domestic flights is normally one hour.

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For connecting domestic flights, you almost never have to exit and reenter security, though there are some exceptions at airports where the terminals aren't all connected. For domestic-to-international connection, it's still pretty rare that you have to exit and reenter security, even if you're changing terminals.

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Generally, the first three terminals are considered domestic terminals and are easily traversed. All three of these terminals are connected by pedestrian walkways, making them so much easier to cross than having to wait for transportation to take you to them.

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There are many factors that impact how long it may take travelers to complete the immigration and CBP process, but it is rare for it to take more than two hours. Passengers connecting to another location must recheck their luggage.

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If the missed connection is the airline's fault (a delayed initial flight due to mechanical problems, for example), the airline should rebook you on the next available flight. If the next outbound flight is the following morning, the airline should either book you on another airline or provide accommodations and meals.

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If you checked a bag, you'll have to collect it from baggage claim from the international flight. You'll need to clear customs and immigration. Next, you'll recheck your luggage for the domestic flight.

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Try to schedule domestic connecting flights with at least 1.5 hours cushion time. For international flights, leave at least 2.5 hours. Planes almost never arrive as scheduled. Instead, your first flight may land later, while your connecting flight catches up in the air and arrives almost 1 hour earlier.

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The recommended layover time for international flights is generally longer, as you will have to go through customs and immigration before boarding your next flight. In most cases, a 30-minute layover for domestic flights and an hour for international flights is considered a minimum, or short, layover.

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