Cheap flights from Washington, D.C. to Denver from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Denver departing on 2/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:00 am - 10:22 am
DCA
-
DEN
4h 22mnonstop
Frontier Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
$124Frontier
Wed, Feb 18 - Tue, Feb 24
Frontier Logo
6:00 pm - 8:16 pm
DCA
-
DEN
4h 16mnonstop
Frontier Logo
7:48 am - 1:15 pm
DEN
-
DCA
3h 27mnonstop
$127Frontier
Sat, Feb 21 - Sun, Feb 22
Frontier Logo
8:01 am - 10:14 am
DCA
-
DEN
4h 13mnonstop
Frontier Logo
11:37 am - 4:59 pm
DEN
-
DCA
3h 22mnonstop
$128Frontier
Mon, Jan 12 - Fri, Jan 23
Frontier Logo
8:00 am - 10:22 am
DCA
-
DEN
4h 22mnonstop
Frontier Logo
7:35 am - 1:02 pm
DEN
-
DCA
3h 27mnonstop
$129Frontier
Thu, Jan 22 - Sun, Jan 25
Frontier Logo
2:00 pm - 4:22 pm
DCA
-
DEN
4h 22mnonstop
Frontier Logo
11:37 am - 4:59 pm
DEN
-
DCA
3h 22mnonstop
$130Frontier
Sat, Feb 21 - Fri, Feb 27
Frontier Logo
2:00 pm - 4:22 pm
DCA
-
DEN
4h 22mnonstop
Frontier Logo
7:35 am - 1:02 pm
DEN
-
DCA
3h 27mnonstop
$131Frontier
Sat, Jan 17 - Mon, Jan 19
Frontier Logo
6:00 pm - 8:16 pm
DCA
-
DEN
4h 16mnonstop
Frontier Logo
11:37 am - 4:59 pm
DEN
-
DCA
3h 22mnonstop
$132Frontier
Sat, Feb 21 - Fri, Feb 27
Frontier Logo
6:00 pm - 8:16 pm
DCA
-
DEN
4h 16mnonstop
Frontier Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
$133Frontier
Sat, Jan 17 - Tue, Jan 20
Multiple Airlines Logo
8:08 pm - 5:53 pm
BWI
-
DEN
23h 45m1 stop
Multiple Airlines Logo
9:05 pm - 12:36 am
DEN
-
BWI
25h 31m2 stops
$193Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
1:02 pm - 6:03 pm
BWI
-
DEN
7h 01m1 stop
Multiple Airlines Logo
8:15 pm - 11:34 pm
DEN
-
BWI
25h 19m2 stops
$195Multiple Airlines
Sat, Jan 10 - Wed, Jan 14

Southwest flights from Washington, D.C. to Denver

Our best Southwest deals on Washington, D.C. to Denver flight tickets
Southwest
Jan 31
IAD3:45 pmWashington, D.C. Dulles Intl
4h 05m
DEN5:50 pmDenver Intl
Feb 7
DEN5:00 pmDenver Intl
3h 10m
IAD10:10 pmWashington, D.C. Dulles Intl
Southwest
Jan 24
IAD3:45 pmWashington, D.C. Dulles Intl
4h 05m
DEN5:50 pmDenver Intl
Jan 30
DEN10:35 amDenver Intl
3h 15m
IAD3:50 pmWashington, D.C. Dulles Intl
Southwest
Jan 6
DCA6:05 amWashington, D.C. Reagan-National
7h 45m
1 stop
DEN11:50 amDenver Intl
Jan 10
DEN11:55 pmDenver Intl
9h 15m
2 stops
DCA11:10 amWashington, D.C. Reagan-National

Frontier flights from Washington, D.C. to Denver

Our best Frontier deals on Washington, D.C. to Denver flight tickets
Frontier
Feb 18
DCA8:00 amWashington, D.C. Reagan-National
4h 22m
DEN10:22 amDenver Intl
Feb 24
DEN4:38 pmDenver Intl
3h 21m
DCA9:59 pmWashington, D.C. Reagan-National
Frontier
Feb 21
DCA6:00 pmWashington, D.C. Reagan-National
4h 16m
DEN8:16 pmDenver Intl
Feb 22
DEN7:48 amDenver Intl
3h 27m
DCA1:15 pmWashington, D.C. Reagan-National
Frontier
Jan 12
DCA8:01 amWashington, D.C. Reagan-National
4h 13m
DEN10:14 amDenver Intl
Jan 23
DEN11:37 amDenver Intl
3h 22m
DCA4:59 pmWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 2/18

8:00 am-10:22 am

Nonstop4h 22m

Denver Intl

Tue 2/24

4:38 pm-9:59 pm

Nonstop3h 21m

$124

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 2/21

6:00 pm-8:16 pm

Nonstop4h 16m

Denver Intl

Sun 2/22

7:48 am-1:15 pm

Nonstop3h 27m

$127

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Mon 1/12

8:01 am-10:14 am

Nonstop4h 13m

Denver Intl

Fri 1/23

11:37 am-4:59 pm

Nonstop3h 22m

$128

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 1/22

8:00 am-10:22 am

Nonstop4h 22m

Denver Intl

Sun 1/25

7:35 am-1:02 pm

Nonstop3h 27m

$129

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 2/21

2:00 pm-4:22 pm

Nonstop4h 22m

Denver Intl

Fri 2/27

11:37 am-4:59 pm

Nonstop3h 22m

$130

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 1/17

2:00 pm-4:22 pm

Nonstop4h 22m

Denver Intl

Mon 1/19

7:35 am-1:02 pm

Nonstop3h 27m

$131

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 2/21

6:00 pm-8:16 pm

Nonstop4h 16m

Denver Intl

Fri 2/27

11:37 am-4:59 pm

Nonstop3h 22m

$132

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 1/17

6:00 pm-8:16 pm

Nonstop4h 16m

Denver Intl

Tue 1/20

4:38 pm-9:59 pm

Nonstop3h 21m

$133

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Fri 1/23

8:08 pm-5:53 pm

1 stop23h 45m

Denver Intl

Fri 1/30

9:05 pm-12:36 am

2 stops25h 31m

$193

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Sat 1/10

1:02 pm-6:03 pm

1 stop7h 01m

Denver Intl

Wed 1/14

8:15 pm-11:34 pm

2 stops25h 19m

$195

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Washington, D.C. to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Washington, D.C. is in January. Flight prices, which tend to average around $237, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until August to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $242.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $303. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $367.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $265. Flights in the evening are often more expensive with an average ticket price of $367.

What is the cheapest Washington, D.C. to Denver Intl flight route?

Fly from Washington, D.C. Reagan-National to Denver Intl for the best Washington, D.C. - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $344 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Washington, D.C. for as low as $276 on momondo.

What cabin class options are available on Washington, D.C. to Denver Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Denver flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Denver.

How have Washington, D.C. to Denver flight prices changed over time?

As of December 2025, prices for Washington, D.C. to Denver flights are approximately 96% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Denver (WAS to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Denver

Best Price Found

$142

Fastest flight time

3h 45m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Denver

1 airport
The best one-way flight to Denver from Washington, D.C. in the past 72 hours is $142. The best round-trip flight deal from Washington, D.C. to Denver found on momondo in the last 72 hours is $128.
The fastest flight from Washington, D.C. to Denver takes 3h 45m
Direct flights go from Washington, D.C. to Denver on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Frontier.
There is 1 airport in Denver. From Washington, D.C. there are direct flights to Denver Intl (DEN).
  • How far is Washington, D.C. to Denver Intl by plane?

    The straight-line distance from Washington, D.C. to Denver Intl is 1487.9 mi. A reasonable flight in good conditions will take 3h 45m.

  • When did momondo last update prices for flights from Washington, D.C. to Denver Intl Airport?

    Prices for flights from Washington, D.C. to Denver Intl Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. to Denver Intl Airport?

  • How old do you have to be to fly from Washington, D.C. to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to Denver?

  • What is the most popular airline from Washington, D.C. to Denver?

Best airlines flying from Washington, D.C. to Denver

Compare and see reviews for airlines that fly from Washington, D.C. to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $90Free CancellationRating
5.8
3,070 reviews
Search Frontier flights
JetBluePriceFrom $128Free CancellationRating
7.2
2,902 reviews
Search JetBlue flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $166Free CancellationRating
7.2
11,069 reviews
Search American Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
  • Southwest Flights From Washington, D.C. to Denver

    The lowest priced Southwest flight from Washington, D.C. to Denver from the last 72 hours was $178. Generally, Southwest has 18 flights on this route every week with an average price of $339. Southwest is rated 8.0/10 by our users.

  • United Airlines Flights From Washington, D.C. to Denver

    The best United Airlines deal for Washington, D.C. to Denver flight tickets found on momondo in the last 72 hours was $213, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $388 round-trip. United Airlines operates 80 flights out of Washington, D.C. into Denver in an average week, so prices vary by time and availability. 9,113 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Manitou Springs
Longmont
Boulder
Greeley
Lakewood
Thornton
Westminster
Winter Park
Copper Mountain
Frisco
Silverthorne
Centennial
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Denver for you.

Can I find flights from Washington, D.C. to Denver with flexible booking policies on momondo?

Yes. All flights to Denver from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Denver trip

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1 adult
Tue 1/27
Tue 2/3

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