Direct flights from Denver (DEN)

Denver International Airport (DEN) has active nonstop service to 228 destinations, flown by 22 airlines, led by United Airlines, Frontier Airlines, and Delta Air Lines. The busiest nonstops from Denver go to Chicago, Phoenix, and Salt Lake City. 2LNR tracks confirmed upgrade and award space on the DEN routes flown by Delta Air Lines, American Airlines, and Alaska Airlines, and award seats on JetBlue Airways, Air France, and Turkish Airlines, so you know which Denver flights have space before you book.

Route data refreshed . Routes and carriers reflect the schedule data behind 2LNR's route map.

Updated .

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228
Nonstop destinations
22
Airlines serving DEN
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About Denver International Airport (DEN)

Denver International Airport (DEN) is the airport serving Denver, Colorado, United States. Its ICAO code is KDEN. Departure and arrival times at DEN are local to the America/Denver time zone. Its nonstop network reaches 228 destinations across 20 countries.

Confirmed upgrade & award space on Denver routes

2LNR tracks confirmed upgrade and award space on Delta Air Lines, American Airlines, and Alaska Airlines, segment by segment and date by date. Pick any Denver destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade or award seats by date on the DEN routes 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch a tracked Denver route on Pro and 2LNR notifies you when space appears.

Plan on the map

Explore every DEN nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Denver (DEN)

These are the city pairs behind flights to and from Denver: 228 nonstop destinations with active service at Denver International Airport. Each route links to its own page, with confirmed upgrade or award space by date where 2LNR tracks the carrier.

Explore DEN routes on the interactive map →

Nonstop flights to Denver (DEN)

229 airports have nonstops to Denver International Airport in 2LNR's schedule data. Here they are, with the airlines that fly each route.

Airlines that fly out of Denver (DEN)

The carriers with nonstop service from Denver International Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map.

Alternative airports near Denver (DEN)

Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute.

United States flights by airport

Frequently asked questions about Denver (DEN)

How many nonstop destinations does Denver International Airport (DEN) serve?
Denver International Airport has active nonstop service to 228 destinations in 2LNR's schedule data. The busiest markets from DEN are Chicago, Phoenix, and Salt Lake City. The full list, with who flies each route and, where 2LNR tracks the carrier, upgrade and award space by date, is on this page.
Which airlines fly out of Denver (DEN)?
The carriers with nonstop service from Denver International Airport are listed in full on this page, each linked to its own route map. United Airlines, Frontier Airlines, and Delta Air Lines run the most routes from Denver, in that order. In 2LNR's schedule data that is 22 airlines in total.
How many airlines fly out of DEN?
2LNR's schedule data currently shows 22 airlines with at least one nonstop route from Denver (DEN). That figure counts the carrier operating the flight rather than every carrier that sells a seat on it, so a codeshare marketed by a partner is not counted twice, and it moves with the season.
How do I check upgrade or award availability from DEN?
Pick any destination on this page, such as Chicago, to open a calendar of DEN departures with confirmed upgrade and award space on Delta Air Lines, American Airlines, and Alaska Airlines by date, the next 14 days free on every product and the full horizon on Pro. On Pro you can also set an alert so 2LNR notifies you when space opens.
Does 2LNR track flights from DEN?
Yes. Every nonstop route from Denver International Airport in 2LNR's schedule data is listed, 228 destinations in total, and on the routes flown by Delta Air Lines, American Airlines, and Alaska Airlines what is shown is confirmed availability rather than a forecast, the next 14 days free on every product and the full horizon on Pro.
Where can you fly nonstop from Denver (DEN)?
2LNR's schedule data shows nonstops from Denver (DEN) to 228 destinations. The busiest go to Chicago, Phoenix, Salt Lake City, Seattle, Dallas, Los Angeles, Colorado Springs, Las Vegas, Rapid City, and Houston. This page lists all 228, with the airlines that fly each one.

Never miss DEN upgrade or award space

See what's open by date on these routes, the next 14 days free on every product and the full horizon on Pro.

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