Question 1

What is the Denver airport train called?

Accepted Answer

The public train between Denver International Airport and downtown is RTD’s University of Colorado A Line. It runs between Denver Airport Station and Denver Union Station and serves eight stations in total.

Question 2

How much does the Denver airport train cost?

Accepted Answer

RTD’s current fare structure lists an Airport Day Pass at $10. That pass is valid across the RTD system, including travel to and from the airport.

Question 3

How long does the Denver airport train take?

Accepted Answer

The ride between the airport and Union Station takes about 37 minutes under the standard schedule.

Question 4

Where do I catch the Denver airport train at DEN?

Accepted Answer

You catch it at the DEN Transit Center, which DEN says is accessed from the south end of Jeppesen Terminal through the glass doors and down to ground level by escalator or elevator.

Question 5

Can I pay with a credit card?

Accepted Answer

Yes. RTD’s Tap-n-Ride lets you tap a contactless Visa or Mastercard, including supported mobile wallets, directly on the validator instead of buying a paper ticket first.

Question 6

Is the Denver airport train the same as DEN’s underground train?

Accepted Answer

No. DEN’s underground train connects the terminal and concourses inside the airport. The A Line is the commuter rail route that goes between the airport and downtown Denver.

Question 7

Does the Denver airport train run all night?

Accepted Answer

No. The A Line runs very early and late, but not continuously through the night. RTD’s current schedule shows early morning departures and service patterns that vary by time of day, so travelers should check the live schedule before a late-night or very early trip.

denver airport train

Denver Airport Train Guide 2026: A Line Fare, Travel Time, and Boarding Tips

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