Find Cheap Flights from Washington, D.C. to Denver (WAS - DEN)

Flights overview

Useful information for finding cheap flights from Washington, D.C. to Denver and booking your next trip

Cheapest round-trip flights	$284	Frontier 1 stop 10 hr Mon, Aug 10 — Tue, Aug 18	The cheapest round-trip flight from Washington, D.C. to Denver is currently $284
Cheapest one-way flight	$135	Frontier 1 stop 9 hr Wed, Aug 12	The cheapest one-way flight from Washington, D.C. to Denver is currently $135
Cheapest nonstop flights	$288	Frontier Nonstop 5 hr Sat, Aug 22 — Sat, Aug 29	The cheapest nonstop round-trip flight from Washington, D.C. to Denver is currently $288
Last-minute weekend getaway	$410	Frontier 1 stop 8 hr Sat, Jun 6 — Sun, Jun 7	The cheapest last-minute weekend getaway from Washington, D.C. to Denver is currently $410
Cheapest business class flights	$532	Frontier 1 stop 12 hr Thu, Aug 13 — Wed, Aug 19	The cheapest business class round-trip flight from Washington, D.C. to Denver is currently $532

Fastest flight	3 hr 45 min	The fastest nonstop flight from Washington, D.C. to Denver takes 3 hr 45 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Washington, D.C. to Denver is typically January. The most expensive month to fly is typically June.

January Cheapest	Typical prices: $90–230
June Most expensive	Typical prices: $225–320

Popular airlines from Washington, D.C. to Denver

United

Nonstop

from $323

Typical price: $210–475

81 weekly nonstop flights

BWI, DCA, IAD - DEN Every day

2060 weekly connecting flights

BWI, DCA, IAD - DEN Every day
Southwest

Nonstop

from $345

Typical price: $215–470

46 weekly nonstop flights

BWI, IAD - DEN Every day

1906 weekly connecting flights

BWI, DCA, IAD - DEN Every day
Frontier

Nonstop

from $284

Typical price: $135–295

19 weekly nonstop flights

DCA - DEN Every day

89 weekly connecting flights

BWI, IAD - DEN Every day
Delta

from $365

Typical price: $255–630

889 weekly connecting flights

BWI, DCA, IAD - DEN Every day
American

from $381

Typical price: $235–560

562 weekly connecting flights

BWI, DCA, IAD - DEN Every day
Alaska

from $483

Typical price: $400–900

70 weekly connecting flights

BWI, DCA, IAD - DEN Every day

Popular airports near Washington, D.C.

Ronald Reagan Washington National Airport (DCA)

Washington United States 18 min 4 mi
Dulles International Airport (IAD)

Washington United States 54 min 22 mi
Baltimore/Washington International Thurgood Marshall Airport (BWI)

Baltimore United States 48 min 27 mi
Philadelphia International Airport (PHL)

Philadelphia United States 2 hr 19 min 116 mi

Popular airports near Denver

Denver International Airport (DEN)

Denver United States 38 min 19 mi
Colorado Springs Airport (COS)

Colorado Springs United States 1 hr 27 min 66 mi
Eagle County Regional Airport (EGE)

Vail United States 2 hr 18 min 103 mi
Centennial Airport (APA)

Denver United States 27 min 14 mi

Frequently asked questions about flying from Washington, D.C. to Denver

The cheapest flights from Washington, D.C. to Denver are usually in January. Typical ticket prices in January range from $90 to $230.

The cheapest round-trip flight from Washington, D.C. to Denver recently found on Google Flights was with Frontier from $284. The cheapest one-way flight was with Frontier from $135.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Washington, D.C. to Denver is $323, flying from Aug 24 to Sep 1.
The cheapest Southwest flight from Washington, D.C. to Denver is $345, flying from Aug 20 to Aug 26.
The cheapest Frontier flight from Washington, D.C. to Denver is $284, flying from Aug 10 to Aug 18.
The cheapest Delta flight from Washington, D.C. to Denver is $365, flying from Aug 20 to Aug 26.
The cheapest American flight from Washington, D.C. to Denver is $381, flying from Jul 9 to Jul 15.
The cheapest Alaska flight from Washington, D.C. to Denver is $483, flying from Aug 22 to Aug 29.

The cheapest round-trip flight from Washington, D.C. to Denver starts at $284 from Mon, Aug 10 to Tue, Aug 18. The cheapest one-way flight starts at $135 and departs on Wed, Aug 12.

3 hr 45 min is the shortest flight time from Washington, D.C. to Denver.

Denver’s mild summer months (Jun–Aug) are a popular time for visitors exploring the city and nearby national parks. The ski season runs through winter (Nov–Mar). Major events include the National Western Stock Show & Rodeo (Jan) and A Taste of Colorado (Sep) food and arts festival.

It's easy to use Google Flights to find the cheapest days to fly from Washington, D.C. to Denver.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Washington, D.C. to Denver really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Washington, D.C. to Denver.

In terms of nonstop flights, United is the most popular. United offers 81 nonstop flights and 2,060 connecting flights per week. United flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to Denver International Airport (DEN) .

Other popular airlines flying from Washington, D.C. to Denver are:

Southwest offers 46 nonstop flights and 1,906 connecting flights per week. Southwest flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to Denver International Airport (DEN) .
Frontier offers 19 nonstop flights and 89 connecting flights per week. Frontier flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Dulles International Airport (IAD) , Ronald Reagan Washington National Airport (DCA) to Denver International Airport (DEN) .
Delta offers 889 connecting flights per week. Delta flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to Denver International Airport (DEN) .
American offers 562 connecting flights per week. American flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to Denver International Airport (DEN) .
Alaska offers 70 connecting flights per week. Alaska flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to Denver International Airport (DEN) .

The number of connecting flights refers to distinct flights with at least one stop between Washington, D.C. and Denver.

The cheapest round-trip flight from Washington, D.C. to Denver recently found on Google Flights was with Frontier from $284. The cheapest one-way flight was with Frontier from $135.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Washington, D.C. to Denver is $323, flying from Aug 24 to Sep 1.
The cheapest Southwest flight from Washington, D.C. to Denver is $345, flying from Aug 20 to Aug 26.
The cheapest Frontier flight from Washington, D.C. to Denver is $284, flying from Aug 10 to Aug 18.
The cheapest Delta flight from Washington, D.C. to Denver is $365, flying from Aug 20 to Aug 26.
The cheapest American flight from Washington, D.C. to Denver is $381, flying from Jul 9 to Jul 15.
The cheapest Alaska flight from Washington, D.C. to Denver is $483, flying from Aug 22 to Aug 29.

Southwest, United and Frontier fly direct from Washington, D.C. to Denver.

There are 81 United direct flights from Washington, D.C. to Denver per week. Flights are available every day.
There are 46 Southwest direct flights from Washington, D.C. to Denver per week. Flights are available every day.
There are 19 Frontier direct flights from Washington, D.C. to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Washington, D.C. and Denver at price $410 is offered by Frontier from Sat, Jun 6 to Sun, Jun 7.

Southwest, United and Frontier fly direct from Washington, D.C. to Denver.

There are 81 United direct flights from Washington, D.C. to Denver per week. Flights are available every day.
There are 46 Southwest direct flights from Washington, D.C. to Denver per week. Flights are available every day.
There are 19 Frontier direct flights from Washington, D.C. to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Washington, D.C. to Denver on a daily basis.

The cheapest direct (nonstop) round-trip flights between Washington, D.C. and Denver start at $288 from Sat, Aug 22 to Sat, Aug 29 with Frontier.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Washington, D.C. to Denver, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Washington, D.C. and Denver start at $532 from Thu, Aug 13 to Wed, Aug 19 with Frontier.

The cheapest economy class round-trip flights between Washington, D.C. and Denver start at $284 from Mon, Aug 10 to Tue, Aug 18.

To book business class trips from Washington, D.C. to Denver, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Washington, D.C. and Denver starts at $410 from Sat, Jun 6 to Sun, Jun 7 with Frontier.

The cheapest last-minute deal between Washington, D.C. and Denver at price $410 is offered by Frontier from Sat, Jun 6 to Sun, Jun 7.

To find last-minute flight deals from Washington, D.C. to Denver, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.