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Cheap flights from Denver to Washington, D.C. from $52

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Washington, D.C. departing on 12/10. 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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Find the cheapest flights from Denver to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:40 am - 1:06 pmDEN-DCA
3h 26mnonstop
Frontier Logo
6:00 pm - 8:12 pmDCA-DEN
4h 12mnonstop
$128Frontier
Find Deal
Do, Dez 11 - So, Dez 14
Frontier Logo
6:00 am - 4:28 pmDEN-IAD
8h 28m1 stop
Frontier Logo
5:37 pm - 12:19 pmIAD-DEN
20h 42m1 stop
$129Frontier
Find Deal
Fr, Jan 23 - So, Jan 25
Frontier Logo
7:40 am - 1:05 pmDEN-DCA
3h 25mnonstop
Frontier Logo
2:00 pm - 4:06 pmDCA-DEN
4h 06mnonstop
$129Frontier
Find Deal
Di, Feb 10 - Fr, Feb 13
Frontier Logo
11:59 pm - 8:24 pmDEN-IAD
18h 25m1 stop
Frontier Logo
4:00 pm - 8:43 amIAD-DEN
18h 43m1 stop
$130Frontier
Find Deal
Do, Dez 11 - Mo, Dez 15
Frontier Logo
12:14 am - 6:16 pmDEN-IAD
16h 02m1 stop
Frontier Logo
7:06 pm - 12:21 pmIAD-DEN
19h 15m1 stop
$131Frontier
Find Deal
Mi, Dez 31 - Mo, Jan 5
Frontier Logo
1:42 pm - 11:10 pmDEN-IAD
7h 28m1 stop
Frontier Logo
7:18 pm - 9:38 pmIAD-DEN
28h 20m1 stop
$133Frontier
Find Deal
Do, Dez 4 - Do, Dez 11
Frontier Logo
1:42 pm - 11:05 pmDEN-IAD
7h 23m1 stop
Frontier Logo
4:00 pm - 8:43 amIAD-DEN
18h 43m1 stop
$134Frontier
Find Deal
Fr, Dez 12 - Mo, Dez 15
Frontier Logo
11:38 am - 4:59 pmDEN-DCA
3h 21mnonstop
Frontier Logo
8:00 am - 10:13 amDCA-DEN
4h 13mnonstop
$135Frontier
Find Deal
Do, Dez 4 - Sa, Dez 6
Frontier Logo
12:59 am - 4:31 pmDEN-IAD
13h 32m1 stop
Frontier Logo
9:21 am - 9:10 amIAD-DEN
25h 49m1 stop
$137Frontier
Find Deal
Mi, Nov 26 - Do, Dez 4
Multiple Airlines Logo
1:57 pm - 11:19 pmDEN-BWI
7h 22m1 stop
Multiple Airlines Logo
8:45 am - 9:02 amBWI-DEN
26h 17m2 stops
$154Multiple Airlines
Find Deal
Do, Nov 27 - Sa, Dez 6

Frontier flights from Denver to Washington, D.C.

Our best Frontier deals on Denver to Washington, D.C. flight tickets
Frontier
Feb 9
DEN6:00 amDenver Intl
8h 28m
1 stop
IAD4:28 pmWashington, D.C. Dulles Intl
Feb 19
IAD3:37 pmWashington, D.C. Dulles Intl
9h 27m
1 stop
DEN11:04 pmDenver Intl
$127
Find similar
Frontier
Dec 21
DEN4:38 pmDenver Intl
3h 21m
DCA9:59 pmWashington, D.C. Reagan-National
Jan 1
DCA6:00 pmWashington, D.C. Reagan-National
4h 12m
DEN8:12 pmDenver Intl
$128
Find similar
Frontier
Jan 8
DEN12:13 pmDenver Intl
6h 43m
1 stop
IAD8:56 pmWashington, D.C. Dulles Intl
Jan 12
IAD6:00 amWashington, D.C. Dulles Intl
8h 21m
1 stop
DEN12:21 pmDenver Intl
$129
Find similar

American Airlines flights from Denver to Washington, D.C.

Our best American Airlines deals on Denver to Washington, D.C. flight tickets
American Airlines
Jan 13
DEN10:45 amDenver Intl
6h 59m
1 stop
DCA7:44 pmWashington, D.C. Reagan-National
Jan 20
DCA10:47 amWashington, D.C. Reagan-National
7h 34m
1 stop
DEN4:21 pmDenver Intl
$197
Find similar
American Airlines
Jan 13
DEN8:44 amDenver Intl
12h 28m
2 stops
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 20
IAD6:00 amWashington, D.C. Dulles Intl
8h 02m
1 stop
DEN12:02 pmDenver Intl
$202
Find similar
American Airlines
Nov 18
DEN11:59 pmDenver Intl
7h 15m
1 stop
DCA9:14 amWashington, D.C. Reagan-National
Nov 19
DCA10:46 amWashington, D.C. Reagan-National
7h 00m
1 stop
DEN3:46 pmDenver Intl
$381
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Washington, D.C. 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 November 13, 2025.
Use the filters below to find and compare flights from Denver to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Do 12/11

7:40 am-1:06 pm

Nonstop3h 26m

Washington, D.C. Reagan-National

So 12/14

6:00 pm-8:12 pm

Nonstop4h 12m

$128

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Fr 1/23

6:00 am-4:28 pm

1 stop8h 28m

Washington, D.C. Dulles Intl

So 1/25

5:37 pm-12:19 pm

1 stop20h 42m

$129

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Di 2/10

7:40 am-1:05 pm

Nonstop3h 25m

Washington, D.C. Reagan-National

Fr 2/13

2:00 pm-4:06 pm

Nonstop4h 06m

$129

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Do 12/11

11:59 pm-8:24 pm

1 stop18h 25m

Washington, D.C. Dulles Intl

Mo 12/15

4:00 pm-8:43 am

1 stop18h 43m

$130

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mi 12/31

12:14 am-6:16 pm

1 stop16h 02m

Washington, D.C. Dulles Intl

Mo 1/5

7:06 pm-12:21 pm

1 stop19h 15m

$131

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Do 12/4

1:42 pm-11:10 pm

1 stop7h 28m

Washington, D.C. Dulles Intl

Do 12/11

7:18 pm-9:38 pm

1 stop28h 20m

$133

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Fr 12/12

1:42 pm-11:05 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Mo 12/15

4:00 pm-8:43 am

1 stop18h 43m

$134

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Do 12/4

11:38 am-4:59 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

Sa 12/6

8:00 am-10:13 am

Nonstop4h 13m

$135

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mi 11/26

12:59 am-4:31 pm

1 stop13h 32m

Washington, D.C. Dulles Intl

Do 12/4

9:21 am-9:10 am

1 stop25h 49m

$137

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Do 11/27

1:57 pm-11:19 pm

1 stop7h 22m

Baltimore/Washington

Sa 12/6

8:45 am-9:02 am

2 stops26h 17m

$154

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 Washington, D.C. from

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

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 Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Denver, with most prices found around $223. If you’re not able to fly to Washington, D.C. in January, then October is your next best option. Flight prices from Denver to Washington, D.C. during October average around $227.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Denver is on a Friday. momondo users have found tickets for Friday departures for as low as $322. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Washington, D.C. for around $401.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Denver to Washington, D.C. when you can find flight prices for as low as $315. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $613. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $334 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Denver for as low as $288 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl to Washington, D.C. 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 Denver to Washington, D.C. flights?

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

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

As of November 2025, prices for Denver to Washington, D.C. flights are approximately 2% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$92

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Denver in the past 72 hours is $92. The best round-trip flight deal from Denver to Washington, D.C. found on momondo in the last 72 hours is $176.
The fastest flight from Denver to Washington, D.C. takes 3h 10m
Direct flights go from Denver to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • How far is Denver Intl to Washington, D.C. by plane?

    Denver Intl and Washington, D.C. are 1487.9 mi apart from one another. By plane, this route typically takes 3h 15m.

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

    Prices for flights from Denver Intl Airport to Washington, D.C. are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. 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 Denver to Washington, D.C.?

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

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

Compare and see reviews for airlines that fly from Denver to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $100Free CancellationRating
5.8
3,114 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,009 reviews
Search Delta flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,235 reviews
Search Southwest flights
United AirlinesPriceFrom $181Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights

  • Southwest Flights From Denver to Washington, D.C.

    Southwest flight deals from Denver to Washington, D.C. start from $177 round-trip. Over the 27 Southwest flights for this route in a normal week, average airfare is usually $342 round-trip - but some users have found much cheaper deals with momondo.

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

    The best United Airlines deal for Denver to Washington, D.C. flight tickets found on momondo in the last 72 hours was $181, 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 58 flights out of Denver into Washington, D.C. in an average week, so prices vary by time and availability. 9,017 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie
Linthicum Heights
Springfield

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Flights from Denver to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Denver to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Washington, D.C. from Denver are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport