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Cheap flights from Denver to District of Columbia from $69

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 District of Columbia departing on 2/25. 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 Denver to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:40 am - 12:04 pm
DEN
-
DCA
3h 24mnonstop
Frontier Logo
1:00 pm - 3:16 pm
DCA
-
DEN
4h 16mnonstop
$128Frontier
Thu, Feb 19 - Sun, Feb 22
Frontier Logo
7:35 am - 1:02 pm
DEN
-
DCA
3h 27mnonstop
Frontier Logo
6:00 pm - 8:16 pm
DCA
-
DEN
4h 16mnonstop
$133Frontier
Mon, Feb 9 - Thu, Feb 19
Frontier Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
Frontier Logo
2:00 pm - 4:22 pm
DCA
-
DEN
4h 22mnonstop
$134Frontier
Wed, Jan 14 - Thu, Jan 15
Frontier Logo
6:40 am - 12:04 pm
DEN
-
DCA
3h 24mnonstop
Frontier Logo
1:00 pm - 3:16 pm
DCA
-
DEN
4h 16mnonstop
$138Frontier
Tue, Feb 10 - Fri, Feb 13
Multiple Airlines Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
Multiple Airlines Logo
7:00 am - 12:45 pm
DCA
-
DEN
7h 45m1 stop
$139Multiple Airlines
Wed, Jan 7 - Tue, Jan 13
Frontier Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
Frontier Logo
8:00 am - 10:22 am
DCA
-
DEN
4h 22mnonstop
$143Frontier
Mon, Jan 12 - Thu, Jan 15
Multiple Airlines Logo
11:35 am - 10:59 pm
DEN
-
DCA
9h 24m1 stop
Multiple Airlines Logo
8:00 am - 10:22 am
DCA
-
DEN
4h 22mnonstop
$144Multiple Airlines
Wed, Jan 14 - Sat, Jan 17
Frontier Logo
6:00 am - 4:28 pm
DEN
-
IAD
8h 28m1 stop
Frontier Logo
5:33 pm - 12:19 pm
IAD
-
DEN
20h 46m1 stop
$146Frontier
Thu, Jan 22 - Mon, Jan 26
Frontier Logo
4:38 pm - 9:59 pm
DEN
-
DCA
3h 21mnonstop
Frontier Logo
8:00 am - 10:22 am
DCA
-
DEN
4h 22mnonstop
$146Frontier
Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
9:50 am - 3:12 pm
DEN
-
IAD
3h 22mnonstop
United Airlines Logo
5:15 pm - 7:26 pm
IAD
-
DEN
4h 11mnonstop
$172United Airlines
Tue, Feb 3 - Tue, Feb 3

United Airlines flights from Denver to District of Columbia

Our best United Airlines deals on Denver to District of Columbia flight tickets
United Airlines
Feb 3
DEN9:50 amDenver Intl
3h 22m
IAD3:12 pmWashington, D.C. Dulles Intl
Feb 3
IAD5:15 pmWashington, D.C. Dulles Intl
4h 11m
DEN7:26 pmDenver Intl
$172
Find similar
United Airlines
Feb 3
DEN9:50 amDenver Intl
3h 22m
IAD3:12 pmWashington, D.C. Dulles Intl
Feb 10
IAD5:15 pmWashington, D.C. Dulles Intl
4h 11m
DEN7:26 pmDenver Intl
$177
Find similar
United Airlines
Feb 3
DEN9:50 amDenver Intl
3h 22m
IAD3:12 pmWashington, D.C. Dulles Intl
Feb 6
IAD10:32 pmWashington, D.C. Dulles Intl
4h 00m
DEN12:32 amDenver Intl
$197
Find similar

Frontier flights from Denver to District of Columbia

Our best Frontier deals on Denver to District of Columbia flight tickets
Frontier
Feb 19
DEN6:40 amDenver Intl
3h 24m
DCA12:04 pmWashington, D.C. Reagan-National
Feb 22
DCA1:00 pmWashington, D.C. Reagan-National
4h 16m
DEN3:16 pmDenver Intl
$128
Find similar
Frontier
Feb 9
DEN7:35 amDenver Intl
3h 27m
DCA1:02 pmWashington, D.C. Reagan-National
Feb 19
DCA6:00 pmWashington, D.C. Reagan-National
4h 16m
DEN8:16 pmDenver Intl
$133
Find similar
Frontier
Jan 14
DEN4:38 pmDenver Intl
3h 21m
DCA9:59 pmWashington, D.C. Reagan-National
Jan 15
DCA2:00 pmWashington, D.C. Reagan-National
4h 22m
DEN4:22 pmDenver Intl
$134
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to District of Columbia 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 18, 2025.
Use the filters below to find and compare flights from Denver to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Thu 2/19

6:40 am-12:04 pm

Nonstop3h 24m

Washington, D.C. Reagan-National

Sun 2/22

1:00 pm-3:16 pm

Nonstop4h 16m

$128

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 2/9

7:35 am-1:02 pm

Nonstop3h 27m

Washington, D.C. Reagan-National

Thu 2/19

6:00 pm-8:16 pm

Nonstop4h 16m

$133

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 1/14

4:38 pm-9:59 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

Thu 1/15

2:00 pm-4:22 pm

Nonstop4h 22m

$134

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 2/10

6:40 am-12:04 pm

Nonstop3h 24m

Washington, D.C. Reagan-National

Fri 2/13

1:00 pm-3:16 pm

Nonstop4h 16m

$138

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 1/7

4:38 pm-9:59 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

Tue 1/13

7:00 am-12:45 pm

1 stop7h 45m

$139

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 1/12

4:38 pm-9:59 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

Thu 1/15

8:00 am-10:22 am

Nonstop4h 22m

$143

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 1/14

11:35 am-10:59 pm

1 stop9h 24m

Washington, D.C. Reagan-National

Sat 1/17

8:00 am-10:22 am

Nonstop4h 22m

$144

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 1/22

6:00 am-4:28 pm

1 stop8h 28m

Washington, D.C. Dulles Intl

Mon 1/26

5:33 pm-12:19 pm

1 stop20h 46m

$146

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 2/13

4:38 pm-9:59 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

Tue 2/17

8:00 am-10:22 am

Nonstop4h 22m

$146

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 2/3

9:50 am-3:12 pm

Nonstop3h 22m

Washington, D.C. Dulles Intl

Tue 2/3

5:15 pm-7:26 pm

Nonstop4h 11m

$172

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 District of Columbia from

How to get the cheapest flight ticket from Denver to District of Columbia

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 District of Columbia?

In general, January is the cheapest month to fly from Denver to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $210. If you don’t want to visit District of Columbia in January, then you should wait until February to fly from Denver, when ticket prices are also cheap, with an average price of $217.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Friday when prices can be found for as low as $325. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $395.

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

Flying to District of Columbia from Denver in the morning is the least expensive time of day to depart. momondo users have found prices as low as $319 when looking at flights departing in the morning. Flights to District of Columbia are more costly at noon, with an average ticket price of $608. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Denver Intl to District of Columbia flight route?

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

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $334 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Denver for as low as $291 on momondo.

What cabin class options are available on Denver Intl to District of Columbia flights?

There are 4 cabin classes available to choose from on Denver Intl to District of Columbia 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 District of Columbia flights?

No. A direct flight is the cheapest option for a flight between Denver to District of Columbia.

Cheap Denver to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to District of Columbia

Best Price Found

$111

Fastest flight time

3h 10m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from Denver in the past 72 hours is $111. The best round-trip flight deal from Denver to District of Columbia found on momondo in the last 72 hours is $173.
The fastest flight from Denver to District of Columbia takes 3h 10m
Direct flights go from Denver to District of Columbia every day.
There are 2 airports in District of Columbia. From Denver there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • When did momondo last update prices for flights from Denver Intl Airport to District of Columbia?

    Prices for flights from Denver Intl Airport to District of Columbia are updated daily.

  • How many operators does momondo search for flights from Denver Intl Airport to District of Columbia?

  • How old do you have to be to fly from Denver Intl Airport to District of Columbia?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The travel and health documents you'll need for your trip to District of Columbia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at District of Columbia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Denver to District of Columbia?

Best airlines flying from Denver to District of Columbia

Compare and see reviews for airlines that fly from Denver to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.8
3,081 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,005 reviews
Search Delta flights
SouthwestPriceFrom $177Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $180Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to District of Columbia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to District of Columbia from Denver.

Can I find flights from Denver to District of Columbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to District of Columbia from Denver with this policy.

How can momondo help me find flights from Denver to District of Columbia?

Once you have performed a search for Denver to District of Columbia 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 District of Columbia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Denver to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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