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

Written by Jim Becker Director of Operations and Client Experiences, Arion, LLC

Brand and Client Experience Reviewed by Christal Becker Founder & CEO, Arion, LLC

Published: May 21, 2026 Last Updated: May 21, 2026

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

First-time visitors flying into Denver who want to navigate DEN without guessing
Business travelers connecting through DEN who need to know the real timing
Groups arriving for Colorado ski trips, weddings, or events who need to coordinate meetup points
Anyone who's been confused by DEN's layout and wants a straight answer about how it works

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 a pedestrian tunnel to Concourse A).

Here's the layout, simplified:

Jeppesen Terminal — the building you enter. Check-in counters, TSA security (two checkpoints: north and south), shops and restaurants before security, Level 5 ground transportation, Level 6 for departures drop-off
Concourse A — gates A14 through A95. Handles Frontier, some United, and several smaller carriers. Connected by train and a walkable pedestrian tunnel
Concourse B — gates B14 through B95. The largest concourse. United's main hub, plus American, Delta, JetBlue, and Southwest
Concourse C — gates C28 through C55. Smaller, quieter. United international flights, some Southwest, Alaska, and Spirit

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:

Terminal to Concourse A: ~3 minutes
Terminal to Concourse B: ~4 minutes (one stop past A)
Terminal to Concourse C: ~6 minutes
Concourse A to C (through B): ~5 minutes

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 pedestrian tunnel to A: There's a walkable tunnel between the terminal and Concourse A. It takes about 8 minutes at a normal pace. 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.

Two Security Checkpoints — Pick the Right One

Jeppesen Terminal has two TSA screening areas:

North Security — generally faster for Concourse C gates and some Concourse B gates
South Security — better positioned for Concourse A and some Concourse B gates

Both lead to the same train. The security checkpoint you choose doesn't lock you into a specific concourse. But during peak morning rushes (5:30–7:30 AM and again around 11:00 AM), one line is usually 10–15 minutes shorter than the other. DEN has a live wait-time page — check it on your phone while you're still in the car.

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, Plus the Walk Option

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:

Timberline Steaks & Grille — sit-down option, better than expected for an airport
Que Bueno Mexican Grille — quick, solid, consistent
Colorado Crafted — local snacks and packaged goods for the flight

Know this: Concourse A is the only one reachable on foot via the pedestrian tunnel. If the train is backed up or you have time, the walk is flat, climate-controlled, and has moving walkways. It's a 7–8 minute walk, and the tunnel features a kinetic light installation that's genuinely 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 B14 to B95, and the walk from one end to the other takes about 12 minutes.

Food highlights on B:

Root Down DIA — the airport outpost of one of Denver's most popular restaurants. Real food, full bar, worth a sit if you have time
Modern Market — grain bowls, salads, sandwiches. Fast and solid for a healthy option
Tivoli Brewing — Colorado craft beer with bar seating and a view of the tarmac
Denver Central Market — food hall–style stalls with multiple options in one spot

Know this: The B gates between B30 and B50 are closest to the train platform. 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 C28 through C55.

Food highlights on C:

Elway's — steakhouse named after the Broncos legend. Good burger, better people-watching
New Belgium Hub — Belgian-style ales and pub food from the Fort Collins brewery
Que Bueno — same solid Mexican as on Concourse A

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 is also on Level 5:

Private car service (Arion, etc.) — your driver will text you specific instructions. Typically east or west side, island 4 or 5, depending on your baggage carousel location. This is why communication matters — a good car service tracks your flight in real time and is already positioned.
Rideshare (Uber/Lyft) — pickup is on Level 5, Island 5, on both east and west sides. During peak hours, the rideshare wait at DEN averages 8–15 minutes after you request.
Taxi — Level 5, Island 1. Metered. Flat rate to downtown Denver is around $65.
RTD A Line train — follow signs to the Transit Center from Level 1. The commuter rail runs to Union Station (downtown Denver) in 37 minutes. Fare is $10.50.
Rental cars — all rental agencies are at the Rental Car Center, reachable by a dedicated shuttle bus from Level 5, Island 4. The shuttle runs every 5–10 minutes. Budget 20–30 minutes from baggage claim to pulling out of the lot.

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.

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:

"My connection is 40 minutes, I'll be fine" — After deplaning, walking to the train, riding to the next concourse, and walking to your gate, 40 minutes is tight. If both gates are on different ends of their concourses, it's a sprint.
"I'll grab food after security" — Yes, but if your gate is on Concourse C and you stop for food in the terminal, you're adding 15 minutes of train time to your meal break.
"I'll just meet my group at baggage claim" — Specify east or west. Level 5 has 12+ carousels split across two sides of the building. "Meet at baggage claim" is like saying "meet at the parking lot."
"The app says my driver is 3 minutes away" — Your rideshare driver might be 3 minutes from the pickup island. You might be 8 minutes from the pickup island. Factor in your own walking time, not just the driver's ETA.

The Local's Playbook

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

The 5:30 AM rush is real. DEN's busiest security window is early morning — ski flights, business travelers, and red-eyes all funnel through security between 5:00 and 6:30 AM during ski season. If you're catching a 7:00 AM flight, arrive at 5:15.
Concourse B's center section has the best power outlets. The B40–B55 area was recently renovated with charging stations at nearly every seat.
DEN's wifi is free and decent. Connect to "DEN Free WiFi." Speed is usable for video calls in most areas, though it slows down during peak afternoon hours.
The Great Hall renovation is ongoing. Jeppesen Terminal's main hall has been under renovation. Temporary walls and rerouted walkways can add 3–5 minutes to your pre-security navigation. Check DEN's site for current detour maps.
Cell phone lot is free. If someone's picking you up, have them wait in the cell phone lot (Pena Boulevard) instead of circling. You call when you're at the curb. No circling charges, no airport police, no stress.

What This Looks Like with Arion

What this looks like with Arion:

Your chauffeur tracks your flight — no need to text landing updates

You get a message before you land: which exit, which side, exactly where to walk

The vehicle is staged and waiting when you reach the curb. No app refreshing, no surge pricing, no waiting in a rideshare queue

If your flight is delayed, your pickup time adjusts automatically

For groups arriving on multiple flights, we coordinate all pickups and consolidate when timing allows

Frequently Asked Questions

How many concourses does Denver International Airport have?

Three: Concourse A (gates A14–A95), Concourse B (gates B14–B95), and Concourse C (gates C28–C55). B is the largest and handles most domestic carriers. All three connect to the main terminal (Jeppesen Terminal) via an underground train.

How long does it take to get between concourses at DEN?

The underground train runs every 2–3 minutes. Terminal to Concourse A is about 3 minutes, to B about 4 minutes, and to C about 6 minutes. Walking through the tunnel to Concourse A takes about 8 minutes and is available during normal hours.

Which DEN concourse has the best food?

Concourse B has the widest selection, including Root Down DIA, Que Bueno, and Modern Market. Concourse C has strong options like Elway's and New Belgium Hub. Concourse A has improved recently but has fewer choices. For sit-down food, arrive early — lines build fast during connection rushes.

Is there a fast way to get from baggage claim to ground transportation at DEN?

Yes. Follow signs to Level 5 (ground transportation) immediately after collecting bags. The west side of Level 5 is closest to rideshare/taxi pickup. For private car service pickups, your driver will text you which side to exit — east or west — based on which baggage claim carousel you're at.

Can I walk between concourses at DEN?

You can walk the pedestrian tunnel between Jeppesen Terminal and Concourse A. Between concourses A, B, and C you must take the train — there's no walkway connecting them directly.

Jim Becker

Director of Operations and Client Experiences, Arion, LLC

Jim Becker manages Arion's fleet operations, route planning, and client logistics across Colorado. His writing covers the operational reality of luxury transportation — timing, routing, safety, and what actually happens between booking and drop-off, from Red Rocks concert nights to mountain resort transfers.

Flying into DEN? Skip the ground transportation guesswork.

Arion tracks your flight, texts you exactly where to walk, and has a staged vehicle waiting when you hit the curb. No apps, no surge, no circling.

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