What is the minimum connection time at O Hare airport?

How long do I need for a connection at ORD? If the flights are with the same airline, gates are typically a very short walk and you can make connections that are 30 minutes or a little less. For domestic flights on different airlines where you have to switch terminals, plan for a minimum one hour connection.



The minimum connection time (MCT) at Chicago O’Hare International Airport (ORD) depends heavily on whether your connection is domestic-to-domestic, domestic-to-international, international-to-domestic, or between different airlines.

Here’s a general breakdown:

Official Minimum Connection Times (MCT)

Airlines and alliances set their own MCTs, but here are typical guidelines:

  • Domestic to Domestic (same airline/alliance): 40–60 minutes
    • This is the most common and shortest connection. Airlines like American (Terminals 1, 2, 3) and United (Terminals 1, 2) have optimized their schedules for connections within their own networks.
  • Domestic to International: 60–90 minutes
    • Extra time is needed for possible security re-checks or passport control if coming from a domestic flight.
  • International to Domestic: 90–120 minutes (often 2+ hours recommended)
    • This is the most critical. You must clear U.S. Customs and Border Protection (CBP), collect your checked bags, re-check them, and go through TSA security again. This process can be lengthy.
  • International to International: 60–90 minutes
    • Usually, you can remain in the sterile international transit area without clearing customs, making it faster.

Crucial Factors That Affect Your Needed Time

  1. Terminal Change: O’Hare has four terminals (1, 2, 3, 5). Terminal 5 is the international terminal, but some international carriers also use Terminal 1

People Also Ask

It depends on whether your connections are in the same terminal (most likely in B or C). If your connecting flight and arriving flight are both in B or both in C, then 35 min should be fine. If one flight is in C while the other flight is in B, then it might get a little tight.

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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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Travel advisers say there's a lot to take into account when booking connecting flights, but a general rule of thumb is 60-90 minutes between domestic flights and at least two to three hours for international itineraries.

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If your itinerary was purchased as one ticket (as in: you have only one itinerary and one confirmation number), and the connection time was too short and you miss the second (or third) flight, you can rest easy, no matter what happens. The airline will simply put you onto the next available flight, free of charge.

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If there are different airlines involved, you may have to get from one gate area to another, which can take a lot of time. Is 45 minutes enough time for a connecting flight? As a rule of thumb, on domestic routes, you need a minimum of 45 minutes between flights.

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That depends on a number of factors. 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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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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Most airlines will try to accommodate passengers from a delayed inbound flight, but it's not guaranteed. Flight attendants might notify the ground crew of connecting passengers, but airlines typically won't delay a departure for a small group.

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In general, that should be fine. My understanding is that the minimum connecting time at O'Hare is 40 minutes, which generally means that the airlines expect to need 40 minutes to allow you enough time to get between flights as well as get your baggage to your next flight.

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That depends on a number of factors. 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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Domestic flights - Yes. Keep in mind you will have to go through security again, which may cause you to miss your flight depending on how long your layover is.

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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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Terminal 3 is the largest terminal at O'Hare, with 79 gates in Concourses G, H, K and L. Its main airlines are American Airlines and Spirit Airlines, though it also hosts several regional airlines.

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In a passenger context, MCT is defined as the shortest time interval required in order to transfer a passenger and his luggage from one flight to a connecting flight, in a specific location or metropolitan area.

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If it is not tagged to your next or final destination, then you will definitely need to pick up your bags and check them in for your next flight.

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As a rule of thumb, on domestic routes, you need a minimum of 45 minutes between flights. That's because you don't have to go through security, customs, and immigration. Is 40 minutes enough time to catch a connecting flight?

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If your itinerary was purchased as one ticket (as in: you have only one itinerary and one confirmation number), and the connection time was too short and you miss the second (or third) flight, you can rest easy, no matter what happens. The airline will simply put you onto the next available flight, free of charge.

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But many travel advisers say those guidelines result in itineraries that don't always work for passengers. “On average, 35 minutes is what they consider a legal connection,” said Loulu Lima founder of the Texas-based travel agency Book Here Give Here.

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A layover is a time you spend at a connecting airport between your primary flight and destination. Usually, on domestic flights, a layover is between 60 minutes to several hours, up to 23 hours, that you have on a transfer flight.

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The IATA fare rules for maximum connection time are max of 4 hours for domestic flights and 24 hours for international flights. The rule for international fares can be extended to the next scheduled flight or set of connecting flights to the final destination.

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While skiplagging isn't illegal, American Airlines filed a civil lawsuit earlier this month against Skiplagged.com, accusing the company of unauthorized and deceptive ticketing practices and tricking customers into believing they've gained access to a secret loophole.

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