Denver International Airport (DEN) is one of the largest airports in the world by land area, sitting well outside the city about 25 miles from downtown Denver.
One Terminal, Three Concourses
DEN is built around a single Jeppesen Terminal, known for its tent-like roofline, with three concourses (A, B, and C) reached by an underground train, since the concourses sit too far apart to walk.
The A Line Train Beats the Drive
The RTD A Line commuter rail runs from Level 5 of the Jeppesen Terminal directly to Denver Union Station downtown in about 37 minutes for $10 each way, a predictable alternative to the roughly 45-minute drive on Pena Boulevard and I-70.
Plan for the Airport’s Sheer Size
Because DEN sits so far out and covers so much ground, build in extra time for parking, security, and the train ride between concourses, especially during Colorado’s winter storm season.
Search live fares into DEN above.