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 15m 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 35m. Keep in mind that layovers or delays could extend your travel time.

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 76% 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.

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

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

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 June 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.

$163 Cheap Flights from Colorado to Washington, D.C. Reagan-National Airport in 2026

Discover deals from 900+ travel sites with momondo.

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.

2:04 pm - 10:59 pm

DEN

DCA

6h 55m

1 stop

2:25 pm - 10:42 pm

DCA

DEN

10h 17m

1 stop

$307JetBlue

週五, 8月 7 - 週一, 8月 17

11:37 pm - 12:01 pm

DEN

DCA

10h 24m

1 stop

7:00 am - 9:01 am

DCA

DEN

4h 01mnonstop

$310Multiple Airlines

週一, 8月 10 - 週五, 8月 14

7:30 am - 12:51 pm

DEN

DCA

3h 21mnonstop

7:00 am - 9:01 am

DCA

DEN

4h 01mnonstop

$318Frontier

週六, 7月 18 - 週六, 7月 25

7:30 am - 12:51 pm

DEN

DCA

3h 21mnonstop

7:00 am - 9:01 am

DCA

DEN

4h 01mnonstop

$322Frontier

週五, 7月 17 - 週六, 7月 18

3:51 pm - 11:58 pm

COS

DCA

6h 07m

1 stop

5:00 am - 9:18 am

DCA

COS

6h 18m

1 stop

$333American Airlines

週三, 9月 2 - 週二, 9月 8

5:00 am - 12:30 pm

COS

DCA

5h 30m

1 stop

12:45 pm - 8:35 pm

DCA

COS

9h 50m

2 stops

$338Southwest

週六, 8月 1 - 週六, 8月 15

12:11 pm - 8:09 pm

COS

DCA

5h 58m

1 stop

6:30 am - 10:33 am

DCA

COS

6h 03m

1 stop

$339United Airlines

週四, 8月 6 - 週六, 8月 15

3:51 pm - 11:58 pm

COS

DCA

6h 07m

1 stop

5:12 pm - 10:53 pm

DCA

COS

7h 41m

1 stop

$347American Airlines

週三, 9月 2 - 週二, 9月 8

6:00 am - 1:40 pm

COS

DCA

5h 40m

1 stop

12:45 pm - 8:35 pm

DCA

COS

9h 50m

2 stops

$361Southwest

週四, 8月 6 - 週六, 8月 15

12:40 pm - 10:52 pm

MTJ

DCA

8h 12m

1 stop

6:30 am - 11:48 am

DCA

MTJ

7h 18m

1 stop

$412United Airlines

週四, 8月 13 - 週日, 8月 16

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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

Sep 2

COS3:51 pmColorado Springs

6h 07m

1 stop

DCA11:58 pmWashington, D.C. Reagan-National

Sep 8

DCA5:00 amWashington, D.C. Reagan-National

6h 18m

1 stop

COS9:18 amColorado Springs

$333

American Airlines

Sep 2

COS3:51 pmColorado Springs

6h 07m

1 stop

DCA11:58 pmWashington, D.C. Reagan-National

Sep 8

DCA5:12 pmWashington, D.C. Reagan-National

7h 41m

1 stop

COS10:53 pmColorado Springs

$347

American Airlines

Aug 14

MTJ2:21 pmMontrose County

7h 37m

1 stop

DCA11:58 pmWashington, D.C. Reagan-National

Aug 16

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

8h 30m

1 stop

MTJ1:30 pmMontrose County

$416

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

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

JetBlue

Aug 7

DEN2:04 pmDenver Intl

6h 55m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

Aug 17

DCA2:25 pmWashington, D.C. Reagan-National

10h 17m

1 stop

DEN10:42 pmDenver Intl

$307

JetBlue

Jul 14

DEN11:37 pmDenver Intl

10h 24m

1 stop

DCA12:01 pmWashington, D.C. Reagan-National

Jul 18

DCA6:20 amWashington, D.C. Reagan-National

8h 51m

1 stop

DEN1:11 pmDenver Intl

$313

JetBlue

Aug 5

DEN2:09 pmDenver Intl

6h 50m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

Aug 14

DCA5:00 pmWashington, D.C. Reagan-National

7h 42m

1 stop

DEN10:42 pmDenver Intl

$315

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

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週五 8/7

2:04 pm-10:59 pm

1 stop6h 55m

Washington, D.C. Reagan-National

週一 8/17

2:25 pm-10:42 pm

1 stop10h 17m

$307

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週一 8/10

11:37 pm-12:01 pm

1 stop10h 24m

Washington, D.C. Reagan-National

週五 8/14

7:00 am-9:01 am

Nonstop4h 01m

$310

Quickest round-trip

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週六 7/18

7:30 am-12:51 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

週六 7/25

7:00 am-9:01 am

Nonstop4h 01m

$318

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

週五 7/17

7:30 am-12:51 pm

Nonstop3h 21m

Washington, D.C. Reagan-National

週六 7/18

7:00 am-9:01 am

Nonstop4h 01m

$322

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

週三 9/2

3:51 pm-11:58 pm

1 stop6h 07m

Washington, D.C. Reagan-National

週二 9/8

5:00 am-9:18 am

1 stop6h 18m

$333

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

週六 8/1

5:00 am-12:30 pm

1 stop5h 30m

Washington, D.C. Reagan-National

週六 8/15

12:45 pm-8:35 pm

2 stops9h 50m

$338

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

週四 8/6

12:11 pm-8:09 pm

1 stop5h 58m

Washington, D.C. Reagan-National

週六 8/15

6:30 am-10:33 am

1 stop6h 03m

$339

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

週三 9/2

3:51 pm-11:58 pm

1 stop6h 07m

Washington, D.C. Reagan-National

週二 9/8

5:12 pm-10:53 pm

1 stop7h 41m

$347

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

週四 8/6

6:00 am-1:40 pm

1 stop5h 40m

Washington, D.C. Reagan-National

週六 8/15

12:45 pm-8:35 pm

2 stops9h 50m

$361

MontroseWashington, D.C.

MTJ - DCA

MTJDCA

Montrose County

週四 8/13

12:40 pm-10:52 pm

1 stop8h 12m

Washington, D.C. Reagan-National

週日 8/16

6:30 am-11:48 am

1 stop7h 18m

$412

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 December is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Colorado, with most prices found around $37. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $58.

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 $250. Flights from Colorado to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $354. 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 morning when prices are around $288.

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 from Colorado 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 $289 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 $254 on momondo.

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

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

You could potentially save up to 10% on your flight if you consider stops on a Colorado to Washington, D.C. Reagan-National Airport flight.

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	$229
Fastest flight time	3h 16m
Direct flights	Every day

The best one-way flight to Washington, D.C. Reagan-National Airport from Colorado in the past 72 hours is $229. The best round-trip flight deal from Colorado to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $373.

The fastest flight from Colorado to Washington, D.C. Reagan-National Airport takes 3h 16m

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

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Frequently asked questions about flying from Colorado to Washington, D.C. Reagan-National Airport

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 June 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 (23.62% of total bookings). The next most popular plane models are Airbus A321neo (17.90%), Boeing 737-900 (11.68%), and Boeing 737 MAX 8 (11.29%).

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 $103	Free Cancellation	Rating 5.6 2,850 reviews	Search Frontier flights
Delta	PriceFrom $143	Free Cancellation	Rating 7.8 8,451 reviews	Search Delta flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.1 11,762 reviews	Search American Airlines flights
United Airlines	PriceFrom $197	Free Cancellation	Rating 7.4 9,901 reviews	Search United Airlines flights
Southwest	PriceFrom $207	Free Cancellation	Rating 7.9 4,247 reviews	Search Southwest flights

Alexandria

National Harbor

Arlington

Gettysburg

Waldorf

Laurel

Woodbridge

Fredericksburg

Gaithersburg

Linthicum Heights

Rockville

Colonial Beach

Towson

Manassas

Silver Spring

Tysons

Springfield

Bethesda

Fairfax

Glen Burnie

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

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

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 $163

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 7/20. 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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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

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

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

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.

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

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Colorado to Washington, D.C. Reagan-National Airport

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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List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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