Jeppesen Terminal
The landside building: ticketing, security (several checkpoint areas), baggage claim and ground transportation. The Westin hotel and the A Line station are attached.
Denver International Airport (DEN)
Denver, Colorado KDEN #4 US airport by passengers
About 25 miles northeast of downtown Denver, out on the plains. It is the largest airport in the United States by land area.
- FAA status
- No delays reported Updated 3 min ago
- Weather now
- VFR 60°F Observed 6 h ago
- Late departures
- 28.7%May 2026 to July 2026
- Security line
- No recent reportsAdd yours
DEN at a glance
Denver is a single terminal with three long concourses. You arrive at the landside Jeppesen Terminal, clear security, and then ride an underground train to Concourse A, B or C. You cannot walk to B or C from the terminal; the train is how you get there, and you should plan for the ride.
The distance from the city is real. The A Line commuter rail makes the trip in about 37 minutes and runs from the terminal basement, but a taxi in rush hour can double that time. If you have an early flight, build in the extra buffer.
Main airlines: United Airlines operates a major hub here; Southwest Airlines and Frontier Airlines also have very large operations and are the other two big carriers by flights.
FAA delay status for DEN
The FAA is not reporting a ground stop, ground delay program or other delay at DEN right now.
Source: FAA National Airspace System Status, checked 3 min ago. Airline-specific delays are not shown here.
Current conditions at DEN
VFR
60°F16°C
Good visibility and high cloud base. Normal operations are typical.
- Wind
- 200° 14 mph
- Visibility
- 10+ mi
- Clouds
- FEW 15,000 ft
- Ceiling
- None
- Pressure
- 29.88 inHg
METARMETAR KDEN 101153Z 20012KT 10SM FEW150 16/M01 A2988 RMK AO2 SLP038 T01561006 10194 20156 55002
Source: NOAA Aviation Weather Center. Observed 6 h ago.
Full weather, TAF, forecast and runways →
On-time performance at DEN
Based on 85,543 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
28.7%Departures late
23.5%Arrivals late
0.54%Cancelled
20.4 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| United Airlines | 28,985 | 22.6% |
| Southwest Airlines | 23,801 | 46.2% |
| SkyWest Airlines | 19,366 | 20.2% |
| Frontier Airlines | 6,265 | 22.9% |
| Delta Air Lines | 3,182 | 18.3% |
| American Airlines | 2,435 | 29.7% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Late departures by month
Terminals
Concourse A
Reached by a pedestrian bridge from the terminal as well as by train. Frontier is concentrated here along with several other carriers and the international arrivals area.
Concourse B
United operates most of its flights from Concourse B and also uses Concourse A and C.
Concourse C
Southwest Airlines is based here and several regional carriers share it. Gate assignments can change, so rely on your boarding pass.
Moving between terminals
An automated train runs beneath the concourses and links the terminal with Concourses A, B and C. Trains run frequently and the ride to the farthest concourse takes several minutes.
Getting to and from DEN
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Rail
RTD A Line
Commuter rail from the terminal to Denver Union Station in about 37 minutes. It is usually the fastest option at rush hour. Purchase a ticket at the station before boarding.
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Bus
RTD bus and regional routes
Local and regional buses link the airport with nearby suburbs and mountain towns. Several private shuttles run to Boulder and the ski areas.
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Rideshare and taxi
Terminal curbs
Follow the ground transportation signs after baggage claim.
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Shuttle
Ski-country shuttles
In winter, scheduled shuttles connect the airport with many mountain resorts. Pre-booking is recommended for weekends.
Tips for DEN
- The airport is at about 5,400 feet, so it sits above many other US airports in elevation. Snow and wind can slow operations in winter and spring.
- Do not plan a tight connection that needs you to change concourses in under 40 minutes; the train is reliable, but the walk to a distant gate takes time.
- If you need to meet someone arriving, the A Line station is below the terminal, a straightforward walk from baggage claim.
Frequently asked questions
How far is Denver International from downtown?
About 25 miles. The A Line takes roughly 37 minutes to Union Station. By car it is usually 30 to 45 minutes depending on traffic.
How do you get to Concourses B and C?
Take the automated train from the terminal. A pedestrian bridge serves Concourse A only.
Which concourse is United on?
Mostly Concourse B, with some flights from A and C. Check your boarding pass.
How busy is DEN?
About 39,976,695 passengers boarded flights at Denver International Airport in 2025, according to FAA enplanement data. That ranks it number 4 among US airports.
How often are flights late at DEN?
Over May 2026 to July 2026, 28.7% of departures at DEN left 15 or more minutes late, and 0.54% of flights were cancelled (Bureau of Transportation Statistics).
Guide content last reviewed October 8, 2026. Report a correction