DEN Airport Terminal Guide: Concourses, Navigation, and What Nobody Tells First-Time Flyers
Transportation 12 min read

DEN Airport Terminal Guide: Concourses, Navigation, and What Nobody Tells First-Time Flyers

Concourse A, B, and C decoded. Train timing, security checkpoints, food options, and the real DEN navigation tricks that save 20 minutes on every trip.


Quick Answer: DEN has one main terminal (Jeppesen) and three concourses connected by underground train. Concourse B is the largest. Budget 45 minutes minimum for connections. The train runs every 2–3 minutes, the walk between terminal and A takes 8 minutes. Ground transportation is on Level 5.

Who This Article Is For

DEN Is Not One Building — It's Four Connected by a Train

Denver International Airport confuses people because it doesn't look like what they expect. You see the iconic white tent roof from the highway, walk in, and assume you're at the gates. You're not. You're in the Jeppesen Terminal — the main building where check-in, security, and baggage claim live. The actual gates are in three separate concourses accessible only by an underground automated train (or, for Concourse A only, a pedestrian bridge).

Here's the layout, simplified:

The train station is below each concourse. Escalators or elevators take you up to the gate level after you exit the train. During peak hours, the platforms get crowded, stand right, walk left, and don't stop at the top of the escalator.

The Train: Faster Than You Think, Slower Than You Hope

The underground train runs every 2–3 minutes during regular operations. Here's the real travel time from the terminal platform:

Add 2–3 minutes for waiting on the platform plus escalator time on each end, and a terminal-to-gate trip runs 8–12 minutes total. That matters for connections. A "45-minute connection" at DEN is actually about 25 minutes of walking and waiting after you deplane.

The A-Bridge to Concourse A: There is a walkable bridge from Level 6 of the terminal to Concourse A — 1,130 feet, about 5 minutes with the moving walkways, glass-walled with views of the taxiway and the Front Range. It is the only concourse you can reach on foot. During train maintenance or when you want to stretch after a long flight, it's useful. During peak congestion, it can actually be faster than waiting for a packed train.

Concourse-to-Gate Walk Times: What the Signs Don't Tell You

The train ride is the short part. The walk after it is what makes people run. DEN's concourses are long — Concourse B alone is 4,545 feet end to end — and the train drops you in the middle, so your gate number tells you more about your timing than your concourse letter does.

Walk bands are estimated from DEN's published concourse lengths at a normal unhurried pace, plus the train ride and escalators. Gate ranges and concourse lengths per Denver International Airport concourse data; treat the minutes as planning ranges, not gate-by-gate measurements.
Gate rangeConcourseWhere it sitsWalk from the train coreTerminal to gate, door to door
A14–A39ALeft as you come up the escalators (west)3–10 min12–18 min
A40–A53ARight of the core (east)3–9 min12–17 min
A54–A84ALevel 1, far end of the concourse10–18 min18–26 min
B7–B37BLeft of the core (west), outdoor deck at the far end3–15 min13–24 min
B38–B42BCenter core, directly above the train escalators0–2 min9–12 min
B43–B79BRight of the core (east)4–12 min14–21 min
B80–B95BLevel 1 far east, via an underground walkway12–18 min22–28 min
C23–C39CLeft of the core; C23 is a dead-end spur4–11 min16–23 min
C40–C67CRight of the core, outdoor deck at the far east end4–13 min16–25 min

The two numbers that actually matter: the full length of Concourse A is 4,000 feet (about 20 minutes), Concourse B is 4,545 feet (about 23 minutes) and Concourse C is 3,335 feet (about 17 minutes). And you cannot walk between concourses at all — active taxiways separate them, so an A-to-C move is always a train ride.

If you are flying out of B80–B95 or A54–A84, add fifteen minutes to whatever your instinct says. Those are the two gate blocks that make people sprint.

Two Security Checkpoints — And They Moved

This is the single most common thing people get wrong about DEN right now, including other guides. All security screening is on Level 6, at two checkpoints: West Security and East Security. The old Level 5 north and south checkpoints are permanently closed — East Security opened in August 2025 as part of the $2.1 billion Great Hall program, and if you are working from a pre-2025 memory or an out-of-date guide you will walk to a wall.

Both feed the same secure area and the same train, so neither one locks you into a concourse — if one is backed up you can walk to the other. During peak morning rushes (roughly 5:00–9:00 AM) and Sunday afternoons, one line is often 10–15 minutes shorter than the other. DEN publishes a live wait-time page — check it on your phone while you are still in the car, not after you have committed to a queue.

TSA PreCheck and CLEAR lanes are available at both checkpoints. If you fly through DEN more than twice a year and don't have PreCheck, fix that. The regular line at DEN during ski season mornings can push 35 minutes.

Concourse A: Frontier's Hub, and the Only Walkable Concourse

Concourse A is Frontier's main base. If you're flying budget, this is where you'll spend your time. It's also home to some United regional flights and a handful of other carriers.

Food highlights on A:

Know this: Concourse A is the only one reachable on foot, via the A-Bridge off Level 6. The walk is flat, climate-controlled and has moving walkways — 1,130 feet, about 5 minutes. If you take the train instead, the tunnel between the terminal and A holds the kinetic light installation, which is worth seeing once.

Concourse B: Where Most Flights Live

Concourse B is DEN's largest and busiest. United operates the majority of its Denver hub flights from here, and American, Delta, JetBlue, and Southwest each have gates on B as well.

If your DEN connection involves a concourse change, there's a good chance B is one of them. Gates run from B7 to B95. It is 4,545 feet from end to end — roughly a 23-minute walk — and gates B80 to B95 sit on Level 1 at the far east end, reached by an underground walkway.

Food highlights on B:

Know this: The B gates in the center core, roughly B38 to B42, sit directly above the train escalators. If you land on B85+ and need to catch the train, start walking immediately, it's a hike. Also, the Centurion Lounge (for AmEx Platinum holders) is on Concourse B near gate B32.

Concourse C: The Quiet One

Concourse C is the smallest of the three. United's international flights operate from here, along with Southwest, Alaska, and Spirit. Gates C23 through C67.

Food highlights on C:

Know this: Concourse C is where DEN feels most relaxed. Fewer passengers, less noise, more open seating. If you have a long layover and just want to sit somewhere quiet with food and wifi, C is your concourse, even if your gate is elsewhere. Just leave time to train back.

Baggage Claim to Ground Transportation — The Route That Matters

After landing, you'll take the train from your concourse back to the Jeppesen Terminal. Baggage claim is on Level 5, divided into east and west sides. Your carousel assignment shows on the screens above the train platform and throughout the terminal — check before you ride the escalator.

Ground transportation at Denver International is also on Level 5:

The single biggest mistake first-timers make: walking out to Level 5 without checking which side (east or west) their pickup is on. Level 5 is long. Walking from the wrong end to the right end adds 8–10 minutes with luggage. This is the whole argument for a DEN meet-and-greet pickup, where the chauffeur texts you the door number before you land.

The Timing Mistakes Everyone Makes

DEN is the third-largest airport in the US by land area. The distances between points are real. Here are the timing errors we see most often:

The Local's Playbook

These are the things frequent DEN travelers know that guides don't usually mention:

What This Looks Like with Arion

What this looks like with Arion:

Frequently Asked Questions

Which security checkpoint should I use at Denver airport?

DEN has two checkpoints, West Security and East Security, and both are on Level 6 of the Jeppesen Terminal. West sits behind the United ticketing counters and East is in the northeast corner beside Southwest; each has 17 lanes with TSA PreCheck and CLEAR. The old Level 5 north and south checkpoints are permanently closed. Both feed the same secure area and the same train to the concourses, so use whichever line is shorter.

What terminal is Concourse A at DEN?

Denver International has only one terminal — the Jeppesen Terminal — so Concourse A is not in a separate terminal. It is the first of three airside concourses, gates A14 through A84, reached either by the underground train or on foot across the A-Bridge from Level 6. Frontier is the main carrier there, along with some United regional flights.

How do I get from Concourse B to Concourse C at DEN?

By the underground train only — there is no walkway between concourses. Take the escalators down to the train platform below Concourse B, ride one stop east to Concourse C, then go back up. The ride itself is two to three minutes, but budget 15 to 20 minutes gate to gate once you add the walk to the core, the platform wait and the walk out to your new gate.

Can you walk between concourses at Denver airport?

No. Concourses A, B and C are separated by active aircraft taxiways, so the train is the only connection between them. The one walkable stretch is the terminal to Concourse A across the A-Bridge on Level 6 — 1,130 feet, about five minutes with the moving walkways.

How many terminals and concourses does Denver airport have?

One terminal and three concourses. The Jeppesen Terminal holds check-in, both security checkpoints, baggage claim and ground transportation; Concourse A runs A14–A84, Concourse B runs B7–B95 and Concourse C runs C23–C67. Every gate is in one of those three concourses.

Where does my chauffeur meet me at Denver International Airport?

For commercial arrivals your chauffeur meets you curbside on Level 5 — Island 2, near door 506 on the west side or door 511 on the east, depending on your baggage claim — and texts you the exact spot before you land. An inside meet-and-greet with a name sign is available for an additional $75, arranged at booking. Private-aviation clients are met planeside or in the FBO lobby.

How long does it take to get from the gate to the curb at DEN?

Concourse B and C arrivals add a train ride to the terminal. Allow 20 to 30 minutes from wheels down to the curb without checked bags, and 40 to 50 minutes with them.

What happens if my flight is delayed?

Dispatch tracks the flight and moves the pickup to the new arrival time. Arion does not cancel a reservation because an airline slipped; the only cancellation triggers are your instruction, or no answer to phone, text and email an hour after the flight has gated.

How much complimentary wait time is included at the airport?

Thirty minutes at the airport, measured from the actual arrival time rather than the time you booked.

Arriving at DEN

Have someone waiting instead of navigating

You have the terminal map. The other option is not needing it: your chauffeur tracks the inbound flight, adjusts for a delay without being asked, and is at the Level 5 curb when you clear the train.

Curbside on Level 5
Standard meet, no parking garage, no rideshare lot walk.
Inside meet available
Baggage-claim greet with a name board at DEN for $75.
Flight tracked
Early or three hours late, the pickup moves with the flight.
Book Now Call (970) 703-4995 Quotes returned the same day.

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