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Cheap flights from Washington, D.C. to Denver from $73

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 11/15. 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
8:40 am - 1:45 pmIAD-DEN
7h 05m1 stop
Frontier Logo
12:34 am - 3:15 pmDEN-IAD
12h 41m1 stop
$130Frontier
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Wed, Nov 12 - Wed, Nov 12
Frontier Logo
8:15 am - 10:20 amDCA-DEN
4h 05mnonstop
Frontier Logo
4:34 pm - 9:59 pmDEN-DCA
3h 25mnonstop
$131Frontier
Find Deal
Tue, Nov 11 - Sat, Nov 15
Frontier Logo
5:45 am - 9:02 amIAD-DEN
29h 17m1 stop
Frontier Logo
12:59 am - 11:05 pmDEN-IAD
20h 06m1 stop
$132Frontier
Find Deal
Sat, Dec 6 - Fri, Dec 12
Frontier Logo
1:00 pm - 3:06 pmDCA-DEN
4h 06mnonstop
Frontier Logo
7:40 am - 1:06 pmDEN-DCA
3h 26mnonstop
$133Frontier
Find Deal
Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
2:00 pm - 9:03 amBWI-DEN
21h 03m1 stop
Multiple Airlines Logo
1:42 pm - 8:18 amDEN-BWI
16h 36m1 stop
$153Multiple Airlines
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Tue, Nov 11 - Sun, Nov 16
Multiple Airlines Logo
9:36 pm - 1:45 pmBWI-DEN
18h 09m2 stops
Multiple Airlines Logo
1:42 pm - 6:29 pmDEN-BWI
26h 47m1 stop
$154Multiple Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Southwest Logo
3:55 pm - 5:50 pmIAD-DEN
3h 55mnonstop
Southwest Logo
5:05 pm - 10:15 pmDEN-IAD
3h 10mnonstop
$177Southwest
Find Deal
Sat, Dec 6 - Sat, Dec 13
JetBlue Logo
6:00 am - 11:05 amDCA-DEN
7h 05m1 stop
JetBlue Logo
11:50 am - 10:59 pmDEN-DCA
9h 09m1 stop
$185JetBlue
Find Deal
Sat, Dec 6 - Tue, Dec 9
American Airlines Logo
5:26 pm - 10:34 pmIAD-DEN
7h 08m1 stop
American Airlines Logo
6:00 am - 4:31 pmDEN-IAD
8h 31m1 stop
$197American Airlines
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Tue, Jan 6 - Tue, Jan 13
American Airlines Logo
6:00 am - 10:31 amIAD-DEN
6h 31m1 stop
American Airlines Logo
8:44 am - 11:12 pmDEN-IAD
12h 28m2 stops
$202American Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 13

Frontier flights from Washington, D.C. to Denver

Our best Frontier deals on Washington, D.C. to Denver flight tickets
Frontier
Nov 12
IAD8:40 amWashington, D.C. Dulles Intl
7h 05m
1 stop
DEN1:45 pmDenver Intl
Nov 12
DEN12:34 amDenver Intl
12h 41m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
$130
Find similar
Frontier
Nov 11
DCA8:15 amWashington, D.C. Reagan-National
4h 05m
DEN10:20 amDenver Intl
Nov 15
DEN4:34 pmDenver Intl
3h 25m
DCA9:59 pmWashington, D.C. Reagan-National
$131
Find similar
Frontier
Dec 6
IAD5:45 amWashington, D.C. Dulles Intl
29h 17m
1 stop
DEN9:02 amDenver Intl
Dec 12
DEN12:59 amDenver Intl
20h 06m
1 stop
IAD11:05 pmWashington, D.C. Dulles Intl
$132
Find similar

Southwest flights from Washington, D.C. to Denver

Our best Southwest deals on Washington, D.C. to Denver flight tickets
Southwest
Dec 6
IAD3:55 pmWashington, D.C. Dulles Intl
3h 55m
DEN5:50 pmDenver Intl
Dec 13
DEN5:05 pmDenver Intl
3h 10m
IAD10:15 pmWashington, D.C. Dulles Intl
$177
Find similar
Southwest
Nov 4
IAD5:45 pmWashington, D.C. Dulles Intl
4h 00m
DEN7:45 pmDenver Intl
Nov 19
DEN4:50 pmDenver Intl
3h 10m
IAD10:00 pmWashington, D.C. Dulles Intl
$292
Find similar

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 October 29, 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

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 11/12

8:40 am-1:45 pm

1 stop7h 05m

Denver Intl

Wed 11/12

12:34 am-3:15 pm

1 stop12h 41m

$130

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 11/11

8:15 am-10:20 am

Nonstop4h 05m

Denver Intl

Sat 11/15

4:34 pm-9:59 pm

Nonstop3h 25m

$131

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 12/6

5:45 am-9:02 am

1 stop29h 17m

Denver Intl

Fri 12/12

12:59 am-11:05 pm

1 stop20h 06m

$132

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 12/10

1:00 pm-3:06 pm

Nonstop4h 06m

Denver Intl

Sun 12/14

7:40 am-1:06 pm

Nonstop3h 26m

$133

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Tue 11/11

2:00 pm-9:03 am

1 stop21h 03m

Denver Intl

Sun 11/16

1:42 pm-8:18 am

1 stop16h 36m

$153

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Mon 11/10

9:36 pm-1:45 pm

2 stops18h 09m

Denver Intl

Mon 11/17

1:42 pm-6:29 pm

1 stop26h 47m

$154

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 12/6

3:55 pm-5:50 pm

Nonstop3h 55m

Denver Intl

Sat 12/13

5:05 pm-10:15 pm

Nonstop3h 10m

$177

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sat 12/6

6:00 am-11:05 am

1 stop7h 05m

Denver Intl

Tue 12/9

11:50 am-10:59 pm

1 stop9h 09m

$185

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 1/6

5:26 pm-10:34 pm

1 stop7h 08m

Denver Intl

Tue 1/13

6:00 am-4:31 pm

1 stop8h 31m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 1/6

6:00 am-10:31 am

1 stop6h 31m

Denver Intl

Tue 1/13

8:44 am-11:12 pm

2 stops12h 28m

$202

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 cheapest month to fly to Denver?

The cheapest month to fly to Denver from Washington, D.C. is in August. Flight prices, which tend to average around $242, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until January to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $244.

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 $302. 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 $372.

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 $262. Flights in the evening are often more expensive with an average ticket price of $374.

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 $339 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 $272 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 October 2025, prices for Washington, D.C. to Denver flights are approximately 24% 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

$125

Fastest flight time

3h 50m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Washington, D.C. in the past 72 hours is $125. 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 50m
Direct flights go from Washington, D.C. to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • 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 55m.

  • 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 $102Free CancellationRating
5.8
3,124 reviews
Search Frontier flights
JetBluePriceFrom $128Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
DeltaPriceFrom $138Free CancellationRating
7.9
7,993 reviews
Search Delta flights
American AirlinesPriceFrom $166Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,001 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 16 flights on this route every week with an average price of $340. 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 $386 round-trip. United Airlines operates 48 flights out of Washington, D.C. into Denver in an average week, so prices vary by time and availability. 9,001 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
Silverthorne
Frisco
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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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