Cheap flights from Washington, D.C. to Denver

Flights starting at $70. Choose between United Airlines, Frontier Airlines, or JetBlue Airways to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals

Kiwi-Code uncovers prices airlines don't want you to see.

Effortless booking

Use our flexible filters to tailor your search.

Travel hacking

Look out for the travel hack star icon for even cheaper fares.

Travelers usually depart from Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Union Station, or Washington, DC - Rosslyn when they travel from Washington, D.C. to Denver. Book your trip to arrive at Denver International, Denver Union Station, Centennial Airport, or Rocky Mountain Metropolitan Airport. The distance between Washington, D.C. and Denver is 2396 km. The most popular airlines for this route are United Airlines, Frontier Airlines, JetBlue Airways, Spirit Airlines, and Delta Air Lines. Washington, D.C. and Denver have 401 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights13131313131313
Fly direct with

Frontier Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Washington, D.C. to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6YesOpens 24 days before flight
Closes 2 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Washington, D.C. to Denver?
A one-way nonstop (direct) flight between Washington, D.C. and Denver takes around 3.9 hours.
What is the flight distance between Washington, D.C. and Denver?
The flight distance between Washington, D.C. and Denver is 2396 km.
What airlines offer nonstop (direct) flights between Washington, D.C. and Denver?
Several carriers operate flights between Washington, D.C. and Denver. Airlines offering nonstop (direct) flights include United Airlines, Frontier Airlines.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and Las Vegas, Orlando, San Francisco, Los Angeles, Austin, Phoenix, Atlanta, Fort Lauderdale, London, Salt Lake City, Chicago, San Diego, New Orleans, Houston, San Salvador, Paris, Dallas, Barcelona, Tampa, Mexico City.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and Chicago, Dallas, Minneapolis, Los Angeles, Houston, Orlando, San Francisco, Atlanta, Las Vegas, Austin, Phoenix, Philadelphia, San Diego, Miami, New York, Tampa, Detroit, Seattle, Salt Lake City, Portland.
Which airports are there in Washington, D.C.?
Washington, D.C. is mainly served by Baltimore–Washington International. But there are other airports nearby, including Washington Dulles International, Ronald Reagan Washington National.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Baltimore–Washington International. It is also served by Philadelphia International, Norfolk International, Richmond International, Trenton–Mercer, Harrisburg International, Atlantic City International, Lehigh Valley International, Altoona–Blair County, Hagerstown Regional, Charlottesville–Albemarle.
What airports are near Denver?
The main airport in Denver is Denver International. It is also served by Colorado Springs, Eagle County Regional, Cheyenne Regional, Pueblo Memorial, Laramie Regional.
What buses and trains depart from Washington, D.C.?
A number of bus and train companies depart from Washington, D.C., including Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Denver?
What is Virtual Interlining and how do I use it?
Which airlines fly between Washington, D.C. and Denver?
When's the best time to travel between Washington, D.C. and Denver?
What flights operate between Washington, D.C. and Denver?
How many airports are there near Washington, D.C.?
How many airports are there near Denver?
Is it possible to reach Washington, D.C. by bus or train?
What time do nonstop (direct) flights between Washington, D.C. and Denver depart?
What time do nonstop (direct) flights between Washington, D.C. and Denver arrive?
What time do flights between Washington, D.C. and Denver depart?
What time do flights between Washington, D.C. and Denver arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

Explore alternative trips

Flights from Washington, D.C.

Flights to Denver

Find the best connection from Washington, D.C. to Denver

Search, compare, and book flights, trains, or buses to get there.

Search flights, trains & buses

We hack the system, you fly for less.