Do you have to take a train between terminals at Denver Airport?

While there is just one terminal at DIA, there is an underground “people mover” train serving the terminal and the three gate areas, with signs directing you. Travelers can only reach Gates B and C by train. Gate A can be reached either by walking or by the train.



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Security. Security wait times are estimates and are subject to change at any time. We suggest arriving at DEN no less than two hours before your boarding time.

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You will need to reclear TSA security once you arrive in your departure terminal. For international arriving passengers, you must claim all checked bags at Customs and recheck with your departing airline, even if the bags are checked to your final destination! To learn more about the AirTrain system, click here.

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DENVER (KDVR) — If you are flying out of Denver International Airport, it is important to arrive early. DEN said passengers should make sure they are inside the airport at least two hours before their boarding time.

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Friday and Monday will likely be the busiest days at the bustling facility with more than 78,000 travelers expected each day, a 6.2% projected increase from the same period in 2022. People flying should plan for plenty of time to get through security checks and to navigate the crowded airport.

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TSA acknowledged DIA is set up in a specific way that makes it prone to long waits. All the airlines use two main security checkpoints and one smaller one. In other airports, individual airlines have their own checkpoints.

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