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Cheap flights from Washington, D.C. to Denver from $55

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 10/24. 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

Frontier Logo
6:31 pm - 8:30 pmDCA-DEN
3h 59mnonstop
Frontier Logo
7:38 am - 1:02 pmDEN-DCA
3h 24mnonstop
$142Frontier
Find Deal
Fri, Oct 24 - Sun, Oct 26
Frontier Logo
6:31 pm - 8:30 pmDCA-DEN
3h 59mnonstop
Frontier Logo
7:40 am - 1:04 pmDEN-DCA
3h 24mnonstop
$143Frontier
Find Deal
Tue, Oct 28 - Wed, Oct 29
Frontier Logo
8:15 am - 10:20 amDCA-DEN
4h 05mnonstop
Frontier Logo
6:38 am - 12:04 pmDEN-DCA
3h 26mnonstop
$144Frontier
Find Deal
Thu, Nov 6 - Sun, Nov 9
Frontier Logo
7:00 am - 8:58 amDCA-DEN
3h 58mnonstop
Frontier Logo
4:34 pm - 9:59 pmDEN-DCA
3h 25mnonstop
$145Frontier
Find Deal
Sun, Oct 5 - Tue, Oct 7
Multiple Airlines Logo
6:29 pm - 8:34 pmBWI-DEN
4h 05mnonstop
Multiple Airlines Logo
8:13 pm - 10:28 amDEN-BWI
12h 15m1 stop
$152Multiple Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
Multiple Airlines Logo
6:29 pm - 8:34 pmBWI-DEN
4h 05mnonstop
Multiple Airlines Logo
8:13 pm - 10:28 amDEN-BWI
12h 15m1 stop
$154Multiple Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
American Airlines Logo
6:34 am - 1:02 pmIAD-DEN
8h 28m1 stop
American Airlines Logo
11:59 pm - 10:19 amDEN-IAD
8h 20m1 stop
$167American Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 3
American Airlines Logo
9:59 am - 1:23 pmDCA-DEN
5h 24m1 stop
American Airlines Logo
7:21 am - 2:28 pmDEN-DCA
5h 07m1 stop
$167American Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 22
Southwest Logo
3:05 pm - 6:55 pmBWI-DEN
5h 50m1 stop
Southwest Logo
12:10 pm - 9:05 pmDEN-BWI
6h 55m2 stops
$172Southwest
Find Deal
Sat, Oct 25 - Sat, Nov 1
Southwest Logo
7:00 am - 9:05 amBWI-DEN
4h 05mnonstop
Southwest Logo
7:45 am - 2:45 pmDEN-BWI
5h 00m1 stop
$173Southwest
Find Deal
Wed, Nov 19 - Sun, Nov 23

Frontier flights from Washington, D.C. to Denver

Our best Frontier deals on Washington, D.C. to Denver flight tickets
Frontier
Oct 24
DCA6:31 pmWashington, D.C. Reagan-National
3h 59m
DEN8:30 pmDenver Intl
Oct 26
DEN7:38 amDenver Intl
3h 24m
DCA1:02 pmWashington, D.C. Reagan-National
$142
Find similar
Frontier
Oct 28
DCA6:31 pmWashington, D.C. Reagan-National
3h 59m
DEN8:30 pmDenver Intl
Oct 29
DEN7:40 amDenver Intl
3h 24m
DCA1:04 pmWashington, D.C. Reagan-National
$143
Find similar
Frontier
Nov 6
DCA8:15 amWashington, D.C. Reagan-National
4h 05m
DEN10:20 amDenver Intl
Nov 9
DEN6:38 amDenver Intl
3h 26m
DCA12:04 pmWashington, D.C. Reagan-National
$144
Find similar

Southwest flights from Washington, D.C. to Denver

Our best Southwest deals on Washington, D.C. to Denver flight tickets
Southwest
Oct 25
BWI3:05 pmBaltimore/Washington
5h 50m
1 stop
DEN6:55 pmDenver Intl
Nov 1
DEN12:10 pmDenver Intl
6h 55m
2 stops
BWI9:05 pmBaltimore/Washington
$172
Find similar
Southwest
Nov 19
BWI7:00 amBaltimore/Washington
4h 05m
DEN9:05 amDenver Intl
Nov 23
DEN7:45 amDenver Intl
5h 00m
1 stop
BWI2:45 pmBaltimore/Washington
$173
Find similar
Southwest
Jan 7
BWI4:20 pmBaltimore/Washington
7h 20m
2 stops
DEN9:40 pmDenver Intl
Jan 11
DEN7:45 amDenver Intl
3h 25m
BWI1:10 pmBaltimore/Washington
$178
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 September 17, 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

Fri 10/24

6:31 pm-8:30 pm

Nonstop3h 59m

Denver Intl

Sun 10/26

7:38 am-1:02 pm

Nonstop3h 24m

$142

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 10/28

6:31 pm-8:30 pm

Nonstop3h 59m

Denver Intl

Wed 10/29

7:40 am-1:04 pm

Nonstop3h 24m

$143

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 11/6

8:15 am-10:20 am

Nonstop4h 05m

Denver Intl

Sun 11/9

6:38 am-12:04 pm

Nonstop3h 26m

$144

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Sun 10/5

7:00 am-8:58 am

Nonstop3h 58m

Denver Intl

Tue 10/7

4:34 pm-9:59 pm

Nonstop3h 25m

$145

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Fri 10/24

6:29 pm-8:34 pm

Nonstop4h 05m

Denver Intl

Tue 10/28

8:13 pm-10:28 am

1 stop12h 15m

$152

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Fri 10/24

6:29 pm-8:34 pm

Nonstop4h 05m

Denver Intl

Tue 10/28

8:13 pm-10:28 am

1 stop12h 15m

$154

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/1

6:34 am-1:02 pm

1 stop8h 28m

Denver Intl

Mon 11/3

11:59 pm-10:19 am

1 stop8h 20m

$167

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 10/21

9:59 am-1:23 pm

1 stop5h 24m

Denver Intl

Wed 10/22

7:21 am-2:28 pm

1 stop5h 07m

$167

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Sat 10/25

3:05 pm-6:55 pm

1 stop5h 50m

Denver Intl

Sat 11/1

12:10 pm-9:05 pm

2 stops6h 55m

$172

BaltimoreDenver

BWI - DEN

BWIDEN

Baltimore/Washington

Wed 11/19

7:00 am-9:05 am

Nonstop4h 05m

Denver Intl

Sun 11/23

7:45 am-2:45 pm

1 stop5h 00m

$173

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 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 $247.

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 $300. 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 $371.

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 $259. Flights in the evening are often more expensive with an average ticket price of $373.

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

Fly from Baltimore/Washington 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 $342 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 $275 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 September 2025, prices for Washington, D.C. to Denver flights are approximately 29% 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

$129

Fastest flight time

3h 40m

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 $129. 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 40m
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 50m.

  • 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 $103Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
JetBluePriceFrom $128Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
DeltaPriceFrom $158Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $166Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,926 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 22 flights on this route every week with an average price of $337. 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 $202, 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 52 flights out of Washington, D.C. into Denver in an average week, so prices vary by time and availability. 8,926 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
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Boulder
Manitou Springs
Longmont
Lakewood
Greeley
Thornton
Westminster
Winter Park
Copper Mountain
Frisco
Grand Lake
Silverthorne
Central City

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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