How long does it take to fly to Washington, D.C. Reagan-National Airport?

Flight times from Colorado to Washington, D.C. Reagan-National Airport vary, but if you’re flying out of Denver and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 3h 10m on average. Another popular route from Colorado to Washington, D.C. Reagan-National Airport is flying from Colorado Springs to Washington, D.C. Dulles Intl Airport, which will take roughly 5h. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Colorado to Washington, D.C. Reagan-National?

Southwest, Delta, and United Airlines are the most popular carriers operating from Colorado to Washington, D.C. Reagan-National

What airlines fly to Washington, D.C. Reagan-National Airport?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Colorado according to our data. Frontier is the first choice among our users, with 77% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

How old do you have to be to fly from Colorado to Washington, D.C. Reagan-National Airport?

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 Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$74 Cheap Flights from Colorado to Washington, D.C. Reagan-National Airport in 2026

Q: How many flights depart from Colorado to Washington, D.C. Reagan-National Airport on average per day?

The number of flights available between Colorado and Washington, D.C. Reagan-National Airport is 5 per day as of March 2026. The most frequent departure time is 9:00AM, with 59% of daily flights leaving at noon.

Q: How many flights depart from Colorado to Washington, D.C. Reagan-National Airport on average per week?

40 flights are operational weekly from Colorado to Washington, D.C. Reagan-National Airport as of March 2026. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

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Find the cheapest flights from Colorado to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:36 pm - 9:59 pm

DEN

DCA

3h 23mnonstop

8:00 am - 10:12 am

DCA

DEN

4h 12mnonstop

$161Frontier

Tue, Apr 21 - Tue, Apr 28

4:27 pm - 9:58 pm

DEN

DCA

3h 31mnonstop

7:00 am - 9:07 am

DCA

DEN

4h 07mnonstop

$162Frontier

Fri, May 8 - Mon, May 11

11:43 am - 8:15 pm

COS

DCA

6h 32m

1 stop

6:30 am - 10:47 am

DCA

COS

6h 17m

1 stop

$235United Airlines

Tue, May 5 - Tue, May 12

12:00 pm - 10:15 pm

MTJ

DCA

8h 15m

1 stop

6:00 am - 11:19 am

DCA

MTJ

7h 19m

1 stop

$240United Airlines

Wed, May 27 - Sat, May 30

6:30 am - 6:00 pm

COS

DCA

9h 30m

2 stops

1:10 pm - 6:05 pm

DCA

COS

6h 55m

1 stop

$240Southwest

Tue, May 5 - Tue, May 12

6:30 am - 6:00 pm

COS

DCA

9h 30m

2 stops

2:40 pm - 9:20 pm

DCA

COS

8h 40m

2 stops

$245Southwest

Tue, Apr 28 - Tue, May 5

1:14 pm - 8:33 pm

COS

DCA

5h 19m

1 stop

2:38 pm - 11:06 pm

DCA

COS

10h 28m

2 stops

$302Delta

Tue, Apr 14 - Sat, Apr 18

11:55 am - 10:50 pm

COS

DCA

8h 55m

2 stops

2:38 pm - 11:06 pm

DCA

COS

10h 28m

2 stops

$307Delta

Tue, Apr 14 - Sat, Apr 18

1:39 pm - 11:59 pm

COS

DCA

8h 20m

1 stop

6:00 am - 12:49 pm

DCA

COS

8h 49m

1 stop

$317American Airlines

Fri, May 1 - Tue, May 12

12:42 pm - 10:55 pm

MTJ

DCA

8h 13m

1 stop

6:00 am - 12:02 pm

DCA

MTJ

8h 02m

1 stop

$330American Airlines

Thu, May 7 - Tue, May 19

Frontier flights from Colorado to Washington, D.C. Reagan-National Airport

Our best Frontier deals on Colorado to Washington, D.C. Reagan-National Airport flight tickets

Frontier

Apr 21

DEN4:36 pmDenver Intl

3h 23m

DCA9:59 pmWashington, D.C. Reagan-National

Apr 28

DCA8:00 amWashington, D.C. Reagan-National

4h 12m

DEN10:12 amDenver Intl

$161

Frontier

May 8

DEN4:27 pmDenver Intl

3h 31m

DCA9:58 pmWashington, D.C. Reagan-National

May 11

DCA7:00 amWashington, D.C. Reagan-National

4h 07m

DEN9:07 amDenver Intl

$162

Frontier

May 10

DEN4:27 pmDenver Intl

3h 31m

DCA9:58 pmWashington, D.C. Reagan-National

May 13

DCA7:00 amWashington, D.C. Reagan-National

4h 07m

DEN9:07 amDenver Intl

$166

American Airlines flights from Colorado to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Colorado to Washington, D.C. Reagan-National Airport flight tickets

American Airlines

May 1

COS1:39 pmColorado Springs

8h 20m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

May 12

DCA6:00 amWashington, D.C. Reagan-National

8h 49m

1 stop

COS12:49 pmColorado Springs

$317

American Airlines

May 7

MTJ12:42 pmMontrose County

8h 13m

1 stop

DCA10:55 pmWashington, D.C. Reagan-National

May 19

DCA6:00 amWashington, D.C. Reagan-National

8h 02m

1 stop

MTJ12:02 pmMontrose County

$330

American Airlines

May 7

MTJ12:42 pmMontrose County

8h 13m

1 stop

DCA10:55 pmWashington, D.C. Reagan-National

May 19

DCA6:00 amWashington, D.C. Reagan-National

8h 02m

1 stop

MTJ12:02 pmMontrose County

$339

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 4/21

4:36 pm-9:59 pm

Nonstop3h 23m

Washington, D.C. Reagan-National

Tue 4/28

8:00 am-10:12 am

Nonstop4h 12m

$161

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/8

4:27 pm-9:58 pm

Nonstop3h 31m

Washington, D.C. Reagan-National

Mon 5/11

7:00 am-9:07 am

Nonstop4h 07m

$162

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Tue 5/5

11:43 am-8:15 pm

1 stop6h 32m

Washington, D.C. Reagan-National

Tue 5/12

6:30 am-10:47 am

1 stop6h 17m

$235

MontroseWashington, D.C.

MTJ - DCA

MTJDCA

Montrose County

Wed 5/27

12:00 pm-10:15 pm

1 stop8h 15m

Washington, D.C. Reagan-National

Sat 5/30

6:00 am-11:19 am

1 stop7h 19m

$240

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Tue 5/5

6:30 am-6:00 pm

2 stops9h 30m

Washington, D.C. Reagan-National

Tue 5/12

1:10 pm-6:05 pm

1 stop6h 55m

$240

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Tue 4/28

6:30 am-6:00 pm

2 stops9h 30m

Washington, D.C. Reagan-National

Tue 5/5

2:40 pm-9:20 pm

2 stops8h 40m

$245

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Tue 4/14

1:14 pm-8:33 pm

1 stop5h 19m

Washington, D.C. Reagan-National

Sat 4/18

2:38 pm-11:06 pm

2 stops10h 28m

$302

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Tue 4/14

11:55 am-10:50 pm

2 stops8h 55m

Washington, D.C. Reagan-National

Sat 4/18

2:38 pm-11:06 pm

2 stops10h 28m

$307

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Fri 5/1

1:39 pm-11:59 pm

1 stop8h 20m

Washington, D.C. Reagan-National

Tue 5/12

6:00 am-12:49 pm

1 stop8h 49m

$317

MontroseWashington, D.C.

MTJ - DCA

MTJDCA

Montrose County

Thu 5/7

12:42 pm-10:55 pm

1 stop8h 13m

Washington, D.C. Reagan-National

Tue 5/19

6:00 am-12:02 pm

1 stop8h 02m

$330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Washington, D.C. Reagan-National Airport

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

Prices

Airlines

Other information

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of February is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Colorado, with most prices found around $181. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $197.

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

The cheapest day to depart from Colorado to Washington, D.C. Reagan-National Airport is on a Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $224. Flights from Colorado to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $314. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Colorado to Washington, D.C. Reagan-National Airport flights are usually those with departure times at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $167. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the afternoon when prices are around $258.

What is the cheapest Colorado to Washington, D.C. Reagan-National flight route?

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

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

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $252 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Colorado for as low as $206 on momondo.

What cabin class options are available on Colorado to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on Colorado to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport flights?

No. A direct flight is the cheapest option for a flight between Colorado to Washington, D.C. Reagan-National Airport.

Cheap Colorado to Washington, D.C. Reagan-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Washington, D.C. Reagan-National Airport

Best Price Found	$138
Fastest flight time	3h 22m
Direct flights	Every day

The best one-way flight to Washington, D.C. Reagan-National Airport from Colorado in the past 72 hours is $138. The best round-trip flight deal from Colorado to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $249.

The fastest flight from Colorado to Washington, D.C. Reagan-National Airport takes 3h 22m

Direct flights go from Colorado to Washington, D.C. Reagan-National Airport every day.

Search flight deals

When did momondo last update prices for flights from Colorado to Washington, D.C. Reagan-National Airport?
Prices for flights from Colorado to Washington, D.C. Reagan-National Airport were last updated today.
How many operators does momondo search for flights from Colorado to Washington, D.C. Reagan-National Airport?
The number of operators available for flights from Colorado to Washington, D.C. Reagan-National Airport is 5 as of March 2026.
How old do you have to be to fly from Colorado to Washington, D.C. Reagan-National Airport?
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 Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport. 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 Colorado to Washington, D.C. Reagan-National Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Colorado to Washington, D.C. Reagan-National Airport is Airbus A320neo (18.01% of total bookings). The next most popular plane models are Airbus A321neo (16.49%), Boeing 737 MAX 8 (14.25%), and Boeing 737-900 (11.98%).

Best airlines flying from Colorado to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Colorado to Washington, D.C. Reagan-National Airport with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $100	Free Cancellation	Rating 5.7 3,014 reviews	Search Frontier flights
Delta	PriceFrom $143	Free Cancellation	Rating 7.9 8,341 reviews	Search Delta flights
United Airlines	PriceFrom $168	Free Cancellation	Rating 7.4 9,491 reviews	Search United Airlines flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,506 reviews	Search American Airlines flights
Southwest	PriceFrom $207	Free Cancellation	Rating 8.0 4,331 reviews	Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Silver Spring

Fredericksburg

Rockville

Tysons

Manassas

Linthicum Heights

Springfield

Bethesda

Fairfax

College Park

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

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Colorado with this policy.

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

Once you have performed a search for Colorado 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 Colorado to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. 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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Cheap flights from Colorado to Washington, D.C. from $74

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 Washington, D.C. departing on 4/24. 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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Frontier flights from Colorado to Washington, D.C. Reagan-National Airport

Our best Frontier deals on Colorado to Washington, D.C. Reagan-National Airport flight tickets

American Airlines flights from Colorado to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Colorado to Washington, D.C. Reagan-National Airport flight tickets

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Colorado to Washington, D.C. Reagan-National Airport

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

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

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

What is the cheapest Colorado to Washington, D.C. Reagan-National flight route?

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

What cabin class options are available on Colorado to Washington, D.C. Reagan-National flights?

Can stopping save me money on Colorado to Washington, D.C. Reagan-National Airport flights?

What is the cheapest airline that flies from Colorado to Washington, D.C. Reagan-National?

What airlines fly to Washington, D.C. Reagan-National Airport?

How many flights depart from Colorado to Washington, D.C. Reagan-National Airport on average per day?

How many flights depart from Colorado to Washington, D.C. Reagan-National Airport on average per week?

How long does it take to fly to Washington, D.C. Reagan-National Airport?

Cheap Colorado to Washington, D.C. Reagan-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Washington, D.C. Reagan-National Airport

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Best airlines flying from Colorado to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Colorado to Washington, D.C. Reagan-National Airport with momondo

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