Located 25 miles northeast of Downtown Denver, Denver International Airport spans an expansive 33,531 acres, making it the largest commercial airport by land area in North America. Situated on the western edge of the Great Plains near the Rocky Mountains, this major aviation hub serves millions of passengers annually and stands as Colorado's single largest employer.
As a vital midcontinent hub, DEN handles immense air traffic and serves as the primary operating hub for United Airlines, Frontier Airlines, and Southwest Airlines. You can access nonstop flights to over 200 destinations across the Americas, Europe, and Asia. The airport operates six active runways, including North America's longest public-use runway measuring 16,000 feet.
Airport navigation centers on the central Jeppesen Terminal, where you will complete ticketing and security screening on Level 6. Three midfield concourses—A, B, and C—house a total of 169 operational gates. You can reach Concourse A via a pedestrian bridge or train, while Concourses B and C are accessed exclusively using the underground train system.
01 Terminals & concourses
Jeppesen Terminal is DEN's single central terminal housing airline ticketing and Level 6 TSA security checkpoints. It connects to all midfield concourses via an underground train and to Concourse A via a pedestrian bridge.
Airport map
The free OpenStreetMap layer below shows the whole airport — terminals, concourses, access roads and the parking garages. Zoom in for gate-level detail.
Map: © OpenStreetMap contributors (ODbL, free). Official gate/terminal maps are copyrighted — we link to them.
02 Which terminal does my airline use?
Airlines are grouped by alliance and region. Always confirm the concourse printed on your boarding pass — assignments can change seasonally.
Show all airlines by terminal ›
Grouped by terminal — check the concourse on your boarding pass before you fly; assignments can change seasonally.
Lost, delayed or damaged baggage at DEN
If your checked bag doesn't turn up on the belt, act before you leave the baggage-claim area — that's where every airline keeps its Baggage Service Office.
- Go to your airline's Baggage Service Office in the baggage-claim hall of your arrival terminal.
- File a Property Irregularity Report (PIR) and get your file reference (WorldTracer) number. Keep your bag-tag receipt and boarding pass.
- Track it online using that reference on your airline's baggage-tracking page — most bags are located within 24–48 hours.
- Claim your essentials. On delayed bags airlines reimburse reasonable interim purchases (toiletries, clothing) — keep receipts. International trips are covered by the Montreal Convention.
- If it's truly lost (generally after 21 days) or damaged, file the claim at the same office — damage must be reported before you leave the airport.
Left something in the terminal (not a checked bag)? That's handled by the airport Lost & Found. Items left at a TSA security checkpoint are held by the TSA, not the airline.
03 Getting to & from DEN
These are the ground-transport options connecting the airport with the city. Fares and schedules change — check the operator before you travel.
| Option | Details |
|---|---|
| Commuter Rail | RTD's A Line connects DEN directly to Denver Union Station, with intervening stops in Aurora. |
| Underground Train | An automated underground train system transports passengers between Jeppesen Terminal and Concourses A, B, and C. |
| Road | Peña Boulevard serves as the primary vehicle access road leading into the airport. |
04 Lounges & amenities
United Airlines operates passenger clubs in Concourse B and is expanding its lounges into Concourse A.
