Denver International Airport (DEN) — Terminals, Lounges & Travel Tips
Denver, CO, United States · DEN
Terminal Guide
| Terminal | Airlines |
|---|---|
| Jeppesen Terminal / Concourse A | United domestic, International connections |
| Concourse B | United Airlines (primary hub), Frontier Airlines |
| Concourse C | Southwest, American, Delta, Alaska, Spirit |
Getting There — Ground Transportation
- RTD University of Colorado A-Line: Light rail to Downtown Denver Union Station in ~37 min for $10.50. Trains run every 15 min. Station is inside the main terminal.
- Rideshare: Uber and Lyft pickup from the designated rideshare level of the parking garage (Level 5). App will confirm the location.
- Taxi: Flat rate of $56.50 to Downtown Denver. Available at the transit level.
- RTD Bus Routes: Several RTD bus lines (AB, FF, AF) serve DEN for lower-cost access to surrounding suburbs.
- Car Rental: On-site rental facility on Pena Blvd; free shuttle from baggage claim level.
Airport Lounge Directory
| Lounge | Location | Access |
|---|---|---|
| United Club – Concourse B | Concourse B | United Club membership, United MileagePlus Club card |
| United Club – Concourse C | Concourse C | United Club membership, United MileagePlus Club card |
| Amex Centurion Lounge | Concourse A | Amex Platinum, Centurion cards |
| Delta Sky Club | Concourse C | Delta Sky Club membership, Amex Platinum/Reserve (limited visits) |
| American Admirals Club | Concourse B | Admirals Club membership, Citi AAdvantage Executive card |
Pro Tips for DEN Travelers
- The A-Line train is the single best transport option — Denver traffic on E-470 and Pena Blvd can add 30–60 minutes during rush hour.
- DEN is the highest-elevation major airport in the US (5,431 ft); altitude can affect some passengers — stay hydrated.
- Frontier's hub at Concourse A is often a bargain option for Rocky Mountain destinations — check their bundled fares.
- Winter weather delays are common December–March; check road and runway conditions before heading to the airport.
- The underground train between Concourses A, B, and C is free and runs inside security — use it, don't walk.
- Parking at the on-site economy lot is cheaper; the Pikes Peak shuttle lot is the most affordable long-term option.
- Denver's thin air means planes often need longer runways for takeoff — flight delays during hot summer afternoons are not unusual.
Know Before You Land — DEN Checklist
Review these before your flight so you hit the ground running at Denver.
- Denver International Airport operates from a single terminal — no terminal confusion, but check your concourse letter for gate location.
- Rail is available: Light rail to Downtown Denver Union Station in ~37 min for $10.50. Trains run every 15 min. Station is inside the main terminal.
- Renting a car? On-site rental facility on Pena Blvd; free shuttle from baggage claim level.
- Amex Platinum/Centurion holders: Amex Centurion Lounge (Concourse A), Delta Sky Club (Concourse C).
- United Airlines hub: expect higher flight frequency and stronger upgrade/standby availability for United Airlines elite members.
- The underground train between Concourses A, B, and C is free and runs inside security — use it, don't walk.