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Cheap flights from Colorado to District of Columbia from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to District of Columbia departing on 1/16. 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 Colorado to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:48 am - 1:15 pm
DEN
-
DCA
3h 27mnonstop
Frontier Logo
2:00 pm - 4:22 pm
DCA
-
DEN
4h 22mnonstop
$127Frontier
Tue, Feb 10 - Fri, Feb 13
Frontier Logo
11:59 pm - 9:25 am
DEN
-
IAD
7h 26m1 stop
Frontier Logo
10:29 am - 9:35 pm
IAD
-
DEN
13h 06m1 stop
$128Frontier
Wed, Feb 25 - Sat, Feb 28
Multiple Airlines Logo
7:35 am - 1:01 pm
DEN
-
DCA
3h 26mnonstop
Multiple Airlines Logo
7:00 am - 12:45 pm
DCA
-
DEN
7h 45m1 stop
$139Multiple Airlines
Sat, Jan 10 - Mon, Jan 12
Multiple Airlines Logo
2:19 pm - 10:33 am
DEN
-
IAD
18h 14m2 stops
Multiple Airlines Logo
5:37 pm - 12:37 pm
IAD
-
DEN
21h 00m1 stop
$168Multiple Airlines
Wed, Feb 18 - Fri, Feb 27
Delta Logo
2:05 pm - 11:37 pm
MTJ
-
IAD
7h 32m1 stop
Delta Logo
6:20 am - 1:08 pm
IAD
-
MTJ
8h 48m1 stop
$274Delta
Wed, Jan 7 - Mon, Jan 12
Delta Logo
12:00 pm - 11:48 pm
COS
-
IAD
9h 48m1 stop
Delta Logo
7:15 am - 12:23 pm
IAD
-
COS
7h 08m1 stop
$304Delta
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
11:33 am - 9:03 pm
HDN
-
IAD
7h 30m1 stop
United Airlines Logo
12:35 pm - 3:02 pm
IAD
-
HDN
4h 27mnonstop
$334United Airlines
Wed, Feb 25 - Sat, Feb 28
United Airlines Logo
1:32 pm - 9:11 pm
MTJ
-
IAD
5h 39m1 stop
United Airlines Logo
2:24 pm - 8:17 pm
IAD
-
MTJ
7h 53m1 stop
$339United Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
1:43 pm - 10:48 pm
COS
-
IAD
7h 05m1 stop
American Airlines Logo
5:00 am - 11:59 am
IAD
-
COS
8h 59m2 stops
$351American Airlines
Thu, Mar 5 - Tue, Mar 10
American Airlines Logo
1:06 pm - 11:12 pm
COS
-
IAD
8h 06m2 stops
American Airlines Logo
7:01 am - 5:41 pm
IAD
-
COS
12h 40m2 stops
$361American Airlines
Tue, Jan 13 - Tue, Jan 20

United Airlines flights from Colorado to District of Columbia

Our best United Airlines deals on Colorado to District of Columbia flight tickets
United Airlines
Jan 21
DEN9:50 amDenver Intl
3h 22m
IAD3:12 pmWashington, D.C. Dulles Intl
Jan 21
IAD5:15 pmWashington, D.C. Dulles Intl
4h 11m
DEN7:26 pmDenver Intl
$172
Find similar
United Airlines
Feb 3
DEN7:50 amDenver Intl
3h 27m
IAD1:17 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
Jan 20
DEN7:50 amDenver Intl
3h 27m
IAD1:17 pmWashington, D.C. Dulles Intl
Jan 24
IAD5:15 pmWashington, D.C. Dulles Intl
4h 11m
DEN7:26 pmDenver Intl
$190
Find similar

Frontier flights from Colorado to District of Columbia

Our best Frontier deals on Colorado to District of Columbia flight tickets
Frontier
Feb 10
DEN7:48 amDenver Intl
3h 27m
DCA1:15 pmWashington, D.C. Reagan-National
Feb 13
DCA2:00 pmWashington, D.C. Reagan-National
4h 22m
DEN4:22 pmDenver Intl
$127
Find similar
Frontier
Feb 25
DEN11:59 pmDenver Intl
7h 26m
1 stop
IAD9:25 amWashington, D.C. Dulles Intl
Feb 28
IAD10:29 amWashington, D.C. Dulles Intl
13h 06m
1 stop
DEN9:35 pmDenver Intl
$128
Find similar
Frontier
Jan 20
DEN4:38 pmDenver Intl
3h 21m
DCA9:59 pmWashington, D.C. Reagan-National
Jan 27
DCA6:00 pmWashington, D.C. Reagan-National
4h 16m
DEN8:16 pmDenver Intl
$133
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Colorado 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 21, 2025.
Use the filters below to find and compare flights from Colorado 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

Tue 2/10

7:48 am-1:15 pm

Nonstop3h 27m

Washington, D.C. Reagan-National

Fri 2/13

2:00 pm-4:22 pm

Nonstop4h 22m

$127

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 2/25

11:59 pm-9:25 am

1 stop7h 26m

Washington, D.C. Dulles Intl

Sat 2/28

10:29 am-9:35 pm

1 stop13h 06m

$128

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sat 1/10

7:35 am-1:01 pm

Nonstop3h 26m

Washington, D.C. Reagan-National

Mon 1/12

7:00 am-12:45 pm

1 stop7h 45m

$139

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 2/18

2:19 pm-10:33 am

2 stops18h 14m

Washington, D.C. Dulles Intl

Fri 2/27

5:37 pm-12:37 pm

1 stop21h 00m

$168

MontroseWashington, D.C.

MTJ - IAD

MTJIAD

Montrose County

Wed 1/7

2:05 pm-11:37 pm

1 stop7h 32m

Washington, D.C. Dulles Intl

Mon 1/12

6:20 am-1:08 pm

1 stop8h 48m

$274

Colorado SpringsWashington, D.C.

COS - IAD

COSIAD

Colorado Springs

Tue 1/13

12:00 pm-11:48 pm

1 stop9h 48m

Washington, D.C. Dulles Intl

Tue 1/20

7:15 am-12:23 pm

1 stop7h 08m

$304

HaydenWashington, D.C.

HDN - IAD

HDNIAD

Hayden Yampa Valley

Wed 2/25

11:33 am-9:03 pm

1 stop7h 30m

Washington, D.C. Dulles Intl

Sat 2/28

12:35 pm-3:02 pm

Nonstop4h 27m

$334

MontroseWashington, D.C.

MTJ - IAD

MTJIAD

Montrose County

Wed 2/4

1:32 pm-9:11 pm

1 stop5h 39m

Washington, D.C. Dulles Intl

Sun 2/8

2:24 pm-8:17 pm

1 stop7h 53m

$339

Colorado SpringsWashington, D.C.

COS - IAD

COSIAD

Colorado Springs

Thu 3/5

1:43 pm-10:48 pm

1 stop7h 05m

Washington, D.C. Dulles Intl

Tue 3/10

5:00 am-11:59 am

2 stops8h 59m

$351

Colorado SpringsWashington, D.C.

COS - IAD

COSIAD

Colorado Springs

Tue 1/13

1:06 pm-11:12 pm

2 stops8h 06m

Washington, D.C. Dulles Intl

Tue 1/20

7:01 am-5:41 pm

2 stops12h 40m

$361

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 Colorado 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 Colorado to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $205. If you don’t want to visit District of Columbia in January, then you should wait until February to fly from Colorado, 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 $324. 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 Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $396.

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

Flying to District of Columbia from Colorado 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 $594. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Colorado to District of Columbia flight route?

Fly from Denver Intl to Washington, D.C. Reagan-National for the best Colorado - 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 Colorado 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 Colorado for as low as $290 on momondo.

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

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

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

Cheap Colorado to District of Columbia flight deals and tips

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

Best Price Found

$142

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 Colorado in the past 72 hours is $142. The best round-trip flight deal from Colorado to District of Columbia found on momondo in the last 72 hours is $170.
The fastest flight from Colorado to District of Columbia takes 3h 10m
Direct flights go from Colorado to District of Columbia every day.
There are 2 airports in District of Columbia. From Colorado 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 Colorado to District of Columbia?

    Prices for flights from Colorado to District of Columbia refresh daily.

  • How many operators does momondo search for flights from Colorado to District of Columbia?

  • How old do you have to be to fly from Colorado to District of Columbia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to District of Columbia.

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

    The required travel and health documents for your District of Columbia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at District of Columbia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Colorado to District of Columbia

Compare and see reviews for airlines that fly from Colorado to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.8
3,078 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,014 reviews
Search Delta flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,254 reviews
Search Southwest flights
United AirlinesPriceFrom $180Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,052 reviews
Search American Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado to District of Columbia. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to District of Columbia from Colorado on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to District of Columbia from Colorado. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Colorado to District of Columbia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to District of Columbia from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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