Navigating Denver International Airport (DEN) starts with understanding its unique layout. Unlike airports with multiple disconnected terminal buildings, DEN features one massive central hub called the Jeppesen Terminal, flanked by three separate satellite concourses labeled A, B, and C. Because these concourses sit entirely detached from the main building, you've got to take an underground train or walk a pedestrian bridge to reach your gate. Getting this layout straight before you arrive saves you from rushed gate changes and missed connections.
The core infrastructure is divided by the iconic white tented roof of the Jeppesen Terminal, which handles ticketing, baggage claim, and security checkpoints. From there, passengers move through security and head down to the underground transit system. Knowing which side of the terminal to park at—East or West—depends entirely on your airline, and picking the wrong side adds unnecessary walking distance to your check-in routine.
Jeppesen Terminal Layout and Levels
The Jeppesen Terminal is stacked vertically, with public access spread across three main floors that you'll use for arrivals, departures, and ground transit.
- Level 6 (Departures): This is where you'll find airline check-in counters, ticketing desks, and curbside bag drop. It's also where the upper roadway handles passenger drop-offs. Security checkpoints sit at the north end of this level.
- Level 5 (Arrivals): This level manages baggage claim carousels, international arrivals customs, and ground transportation options like taxis and shuttles.
- Level 4 (Ground Transportation): Use this floor to access public transit buses, regional rail links, and the passenger pickup zones.
Splitting your approach correctly matters. Even-numbered exterior doors serve the West side of the terminal, while odd-numbered doors serve the East side. Check your airline carrier's specific terminal side designation before your driver drops you off.
Concourse A, B, and C Gate Layouts
Once you clear security, you must travel to your assigned concourse. Each concourse serves distinct airlines and features its own layout of gates, dining options, and amenities.
Concourse A
Concourse A handles a mix of domestic and international carriers. It features gates ranging from A26 to A87. All international arrivals without pre-clearance route through Concourse A or its customs interface. You can reach Concourse A either by taking the underground train or by walking across the elevated pedestrian bridge directly from the Jeppesen Terminal. Moving walkways line the pedestrian bridge to speed up the trek.
Concourse B
Concourse B is dedicated exclusively to United Airlines and its regional partners. Gate numbers span from B1 to B95. Because of its massive footprint, it is split into multiple zones. Concourse B is completely detached from the main terminal, meaning the underground train is your only option to get there.
Concourse C
Concourse C is primarily home to Southwest Airlines and American Airlines, with gates ranging from C23 to C67. Like Concourse B, Concourse C requires taking the underground airport train from the Jeppesen Terminal. It features a central atrium packed with local Colorado eateries, retail shops, and lounge spaces.
How to Navigate Between Terminals and Gates
Moving through DEN requires a simple three-step transit routine once you're inside the building.
- Park or Drop: Arrive at Level 6 on either the East or West side depending on your airline's ticketing location.
- Clear Security: Pass through the East, West, or bridge security checkpoints.
- Ride the Train: Board the Automated Guideway Transit System (AGTS) underground train on Level 4 to reach Concourses A, B, or C, or use the pedestrian bridge for Concourse A.
The underground train arrives every few minutes and takes less than three minutes to reach the farthest concourse. Audio announcements and digital screens indicate which concourse you're approaching.
Common Mistakes to Avoid at DEN
- Going to the wrong terminal side: Dropping off on the East side when your airline is on the West side forces you to walk the entire length of the main terminal. Check your boarding pass or visit the Denver International Airport Official Site before you leave home.
- Underestimating security lines: Security wait times at DEN fluctuate wildly during peak morning banks. Give yourself at least two hours before domestic flights and three hours for international departures.
- Assuming you can walk to Concourse B or C: Unlike Concourse A, you cannot walk to Concourses B and C from the main terminal. You must rely entirely on the underground train system.
- Missing baggage carousel sides: Baggage carousels 1 through 9 are on the East side, while 10 through 19 are on the West side. Look at your airline claim notification before heading downstairs.
Frequently Asked Questions
Can I walk between all concourses at Denver Airport?
You can walk between the Jeppesen Terminal and Concourse A using the pedestrian bridge. However, you cannot walk to Concourses B and C; you must take the underground train. There are no underground pedestrian tunnels between the concourses.
Which side of the terminal is Southwest Airlines on?
Southwest check-in desks and ticket counters are located on the West side of the Jeppesen Terminal. Keep in mind that Southwest flights depart from Concourse C.
Where do international flights arrive at DEN?
International flights without border pre-clearance arrive at Concourse A. Passengers then clear customs and immigration at the Federal Inspection Services facility located on Level 5 of the Jeppesen Terminal.
Is there a hotel connected to the airport terminal?
Yes, the Westin Denver International Airport hotel is integrated directly into the Jeppesen Terminal on the south side, just steps away from the transit center and security screening checkpoints. You can review property details via Marriott's Official Westin Denver Airport Page.
