Airport hub · DEN
Denver International: the complete layover guide
One enormous terminal, three concourses on a fast airside train, and a hotel you can walk to without going outside. DEN is one of the easier US airports to kill five hours in, as long as you respect the walking distances.
Last reviewed: 25 May 2026
Layover qualityGood. Open 24 hours, all concourses airside, plenty of seating. The altitude and the long walks are the only real complaints.
Best lounge optionThe Centurion Lounge on the Concourse C mezzanine near gate C46 if you carry the right Amex. Otherwise the Capital One Lounge near A34 is the strongest room in the airport.
One thing to knowThere is no Priority Pass lounge at DEN. Your membership gets you a 28 dollar dining credit at Mercantile in Concourse A instead.
Quick facts
DEN at a glance
| Terminals | 1 terminal (Jeppesen), 3 concourses: A, B, C |
|---|---|
| Airside transit between concourses | Yes, underground train every few minutes |
| Free wifi | Yes |
| Sleep friendliness | Fair. Open 24 hours, bright, with quiet ends |
| Lounge count | 7, plus a USO in Concourse A |
| Nearest in terminal hotel | Westin Denver International, on the terminal plaza |
Layout
Terminals and getting around
Everything at DEN funnels through one building, the Jeppesen Terminal, and an underground train that reaches all three concourses airside. Once you are through security you can roam the whole airport.
The terminal has an east side and a west side, which matters for arrivals and pickups but not much for connections. From the main hall you ride the train to Concourse A, then B, then C. Trains come every few minutes and the ride to C takes under ten minutes. Concourse A has a second option: a pedestrian bridge from the terminal that crosses above a taxiway. Take it at least once for the view of aircraft passing underneath.
Concourse B is the one that punishes you. It is United territory and it is extremely long, with gates stretched along east and west wings. If you land at B90 and depart from B15, that alone is a 15 to 20 minute walk. Moving walkways help, but budget real time. A and C are more manageable.
Connections at DEN are honest: no terminal changes, no second security screening, one train. An hour between flights on the same ticket is normally workable. The failure mode is a late inbound plus a far gate on B, so check the gate before you settle in somewhere comfortable. For the full connection picture, see the DEN transit and connection guide.
Lounges
The lounge picture at DEN
DEN has seven proper lounges. United runs clubs on Concourse A near A25 and on B near B44, with the B32 location temporarily closed as of early 2026. Delta flyers get a Sky Club at the south end of the A center core, level 4. American keeps an Admirals Club on the C mezzanine near gate C32. The two headline rooms are newer: the Amex Centurion Lounge on the C mezzanine near C46, open 5am to 10pm, and the Capital One Lounge near A34, open 5am to 9pm.
My order of preference: Centurion if your card gets you in, Capital One a close second and often calmer, then the Sky Club. The United Clubs are fine but crowded at peak banks. The USO in Concourse A serves military members and their families.
Priority Pass holders get no lounge here at all, only a 28 dollar per person dining credit at Mercantile Dining and Provision in Concourse A. It is a genuinely good restaurant, so the consolation prize is edible. Full details, hours, and access rules are in the DEN lounge directory and the Priority Pass at DEN guide.
City escape
Getting downtown from DEN
The A Line commuter train leaves from a station under the Westin, directly behind the terminal, and reaches Union Station downtown in 37 minutes. Trains run every 15 minutes through most of the day and a 10 dollar regional day pass covers the round trip. It is the rare US airport train that actually works for a layover.
Should you go? With 6 hours or more, yes. Union Station itself is worth an hour, with good food halls and bars inside a restored rail terminal. With less than 5 hours I would stay at the airport: the airport sits 25 miles from the city on open plains, and a taxi or rideshare runs 35 to 45 minutes each way depending on traffic. Hour by hour plans, including a realistic downtown run, are in the DEN layover guide.
Overnight
Sleeping at DEN
DEN stays open all night and nobody will move you on for sleeping airside. The far ends of Concourse A and C go quiet after the last departure banks. The catch is light and noise: the terminal is bright and announcements carry. Bring an eye mask.
For a real bed, the Westin Denver International stands on the terminal plaza, a five minute indoor walk from security. It is expensive but it is the only walkable bed, and the rooms facing the terminal have a view of the tented roof that almost justifies the rate. Cheaper hotels sit along Tower Road, 10 to 15 minutes away by free shuttle. Spots, pods, and hotel detail live in the sleeping at DEN guide.
Practical
Food, quiet, and survival notes
Denver sits a mile above sea level and you feel it: you dehydrate faster and alcohol hits harder. Drink water before you discover this the hard way. Water bottle filling stations are scattered through all concourses.
Food is best on Concourse A and in the center cores of B and C. Mercantile in A is the standout sit down option. Late at night the choice thins out fast, so eat before 9pm if you are on an overnight. Free wifi covers the whole airport and held up fine in my experience, even at the B gates at peak.
One more thing: marijuana is legal in Colorado but banned everywhere on airport property. Do not bring it through, do not buy it on a layover and try to fly on with it.
FAQ
DEN layover questions
Is there a Priority Pass lounge at Denver airport?
No. DEN has no traditional Priority Pass lounge. Priority Pass members instead get a 28 dollar dining credit per person at Mercantile Dining and Provision in Concourse A. Arrive hungry and it works out fine.
Can I sleep overnight at DEN?
Yes. The terminal stays open 24 hours and security will not move you on. The Westin sits directly on the terminal plaza if you want a real bed, and quiet corners exist at the far ends of each concourse.
How do I get between concourses at DEN?
An underground train runs from the terminal to Concourses A, B, and C every few minutes, entirely airside. Concourse A is also reachable on foot over a pedestrian bridge from the terminal.
How far is downtown Denver from the airport?
About 25 miles. The A Line train runs from a station under the Westin to Union Station downtown in 37 minutes, with trains every 15 minutes for most of the day. A 10 dollar day pass covers the round trip.
Is 1 hour enough to connect at DEN?
If you stay airside, usually yes, because the train links all three concourses quickly. It gets tight if your inbound is late or you land at the far end of Concourse B, which is very long. With checked bags on separate tickets, no.
Check lounge access for DEN
Compare day passes, memberships, and card access for the seven lounges at Denver International before you fly.
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