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

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

What airlines fly to Colorado?

Frontier, United Airlines and American Airlines are the top three most popular airlines that fly to Colorado from Washington, D.C. Reagan-National Airport according to our data. Frontier is the first choice among our users, with 80% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 5 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Colorado?

As of March 2026, there are 5 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Colorado.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$94 Cheap Flights from Washington, D.C. Reagan-National Airport to Colorado in 2026

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

As of March 2026, there are 45 flights per week flying from Washington, D.C. Reagan-National Airport to Colorado. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

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

The number of flights available between Washington, D.C. Reagan-National Airport and Colorado is 6 per day as of March 2026. The most frequent departure time is 8:00AM, with 52% of daily flights leaving in the afternoon.

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:59 pm - 4:04 pm

DCA

DEN

4h 05mnonstop

4:36 pm - 9:59 pm

DEN

DCA

3h 23mnonstop

$124Frontier

Thu, Apr 16 - Mon, Apr 20

8:00 am - 10:12 am

DCA

DEN

4h 12mnonstop

4:36 pm - 9:59 pm

DEN

DCA

3h 23mnonstop

$126Frontier

Mon, Apr 27 - Mon, Apr 27

7:35 am - 12:49 pm

DCA

COS

7h 14m

1 stop

1:39 pm - 12:30 am

COS

DCA

8h 51m

1 stop

$257American Airlines

Tue, Apr 7 - Sat, Apr 11

6:00 am - 12:17 pm

DCA

COS

8h 17m

1 stop

1:14 pm - 10:34 pm

COS

DCA

7h 20m

1 stop

$268Delta

Wed, Apr 15 - Mon, Apr 20

7:30 am - 12:49 pm

DCA

MTJ

7h 19m

1 stop

1:44 pm - 9:41 pm

MTJ

DCA

5h 57m

1 stop

$274Delta

Wed, Mar 18 - Tue, Mar 24

4:11 pm - 10:18 pm

DCA

GJT

8h 07m

1 stop

7:00 am - 2:59 pm

GJT

DCA

5h 59m

1 stop

$289United Airlines

Tue, May 5 - Sat, May 9

6:30 am - 11:44 am

DCA

DRO

7h 14m

1 stop

12:41 pm - 10:56 pm

DRO

DCA

8h 15m

1 stop

$298American Airlines

Sat, Apr 4 - Wed, Apr 22

6:30 am - 11:01 am

DCA

ASE

6h 31m

1 stop

9:00 am - 8:10 pm

ASE

DCA

9h 10m

1 stop

$309United Airlines

Fri, May 29 - Sat, Jun 6

2:40 pm - 9:20 pm

DCA

COS

8h 40m

2 stops

10:35 am - 11:25 pm

COS

DCA

10h 50m

1 stop

$324Southwest

Wed, Apr 15 - Mon, Apr 20

6:00 am - 1:35 pm

DCA

COS

9h 35m

1 stop

6:20 am - 2:45 pm

COS

DCA

6h 25m

1 stop

$347Southwest

Thu, Apr 16 - Sat, Apr 18

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

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

American Airlines

Apr 13

DCA7:50 pmWashington, D.C. Reagan-National

6h 09m

1 stop

DEN11:59 pmDenver Intl

Apr 15

DEN3:59 pmDenver Intl

6h 00m

1 stop

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

$186

American Airlines

Apr 4

DCA6:30 amWashington, D.C. Reagan-National

7h 14m

1 stop

DRO11:44 amDurango La Plata County

Apr 22

DRO12:41 pmDurango La Plata County

8h 15m

1 stop

DCA10:56 pmWashington, D.C. Reagan-National

$298

American Airlines

Jun 23

DCA6:59 amWashington, D.C. Reagan-National

8h 31m

1 stop

MTJ1:30 pmMontrose County

Jun 30

MTJ2:21 pmMontrose County

7h 38m

1 stop

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

$304

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

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

Frontier

Apr 16

DCA1:59 pmWashington, D.C. Reagan-National

4h 05m

DEN4:04 pmDenver Intl

Apr 20

DEN4:36 pmDenver Intl

3h 23m

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

$124

Frontier

Apr 27

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

4h 12m

DEN10:12 amDenver Intl

Apr 27

DEN4:36 pmDenver Intl

3h 23m

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

$126

Frontier

Apr 29

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

4h 12m

DEN10:12 amDenver Intl

May 1

DEN4:36 pmDenver Intl

3h 23m

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

$129

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Thu 4/16

1:59 pm-4:04 pm

Nonstop4h 05m

Denver Intl

Mon 4/20

4:36 pm-9:59 pm

Nonstop3h 23m

$124

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Mon 4/27

8:00 am-10:12 am

Nonstop4h 12m

Denver Intl

Mon 4/27

4:36 pm-9:59 pm

Nonstop3h 23m

$126

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Tue 4/7

7:35 am-12:49 pm

1 stop7h 14m

Colorado Springs

Sat 4/11

1:39 pm-12:30 am

1 stop8h 51m

$257

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 4/15

6:00 am-12:17 pm

1 stop8h 17m

Colorado Springs

Mon 4/20

1:14 pm-10:34 pm

1 stop7h 20m

$268

Washington, D.C.Montrose

DCA - MTJ

DCAMTJ

Washington, D.C. Reagan-National

Wed 3/18

7:30 am-12:49 pm

1 stop7h 19m

Montrose County

Tue 3/24

1:44 pm-9:41 pm

1 stop5h 57m

$274

Washington, D.C.Grand Junction

DCA - GJT

DCAGJT

Washington, D.C. Reagan-National

Tue 5/5

4:11 pm-10:18 pm

1 stop8h 07m

Grand Junction Regnl

Sat 5/9

7:00 am-2:59 pm

1 stop5h 59m

$289

Washington, D.C.Durango

DCA - DRO

DCADRO

Washington, D.C. Reagan-National

Sat 4/4

6:30 am-11:44 am

1 stop7h 14m

Durango La Plata County

Wed 4/22

12:41 pm-10:56 pm

1 stop8h 15m

$298

Washington, D.C.Aspen

DCA - ASE

DCAASE

Washington, D.C. Reagan-National

Fri 5/29

6:30 am-11:01 am

1 stop6h 31m

Aspen Pitkin County

Sat 6/6

9:00 am-8:10 pm

1 stop9h 10m

$309

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 4/15

2:40 pm-9:20 pm

2 stops8h 40m

Colorado Springs

Mon 4/20

10:35 am-11:25 pm

1 stop10h 50m

$324

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Thu 4/16

6:00 am-1:35 pm

1 stop9h 35m

Colorado Springs

Sat 4/18

6:20 am-2:45 pm

1 stop6h 25m

$347

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

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 Colorado?

The month of January is, on average, the cheapest month to fly to Colorado from Washington, D.C. Reagan-National Airport, with most prices found around $201. The month of September is another great option to travel to Colorado, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $219.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Colorado is on a Saturday when prices can be found for as low as $245. On the other hand, Thursday is the most expensive day to depart from Washington, D.C. Reagan-National Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $279.

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

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $250. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $291 per ticket.

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

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

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $264 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Washington, D.C. Reagan-National Airport for as low as $210 on momondo.

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

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

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

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

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

Best Price Found	$113
Fastest flight time	4h 00m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Washington, D.C. Reagan-National Airport in the past 72 hours is $113. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Colorado found on momondo in the last 72 hours is $198.

The fastest flight from Washington, D.C. Reagan-National Airport to Colorado takes 4h 00m

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

There are 87 airports in Colorado. From Washington, D.C. Reagan-National Airport there are direct flights to Denver Intl (DEN).

Search flight deals

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Colorado?
Prices for flights from Washington, D.C. Reagan-National Airport to Colorado refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Colorado?
As of March 2026, there are 5 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Colorado.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents required for your trip to Colorado can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Reagan-National Airport to Colorado?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and Colorado, the leading plane model is Boeing 737 MAX 8, making up 15.07% of the total bookings. Other popular models include Airbus A320neo with 14.20%, Boeing 737-900 with 12.71%, and Airbus A321neo with 11.80%.

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

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $106	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
United Airlines	PriceFrom $188	Free Cancellation	Rating 7.4 9,378 reviews	Search United Airlines flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.1 11,375 reviews	Search American Airlines flights
Southwest	PriceFrom $228	Free Cancellation	Rating 8.0 4,302 reviews	Search Southwest flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.9 8,242 reviews	Search Delta flights

Why use momondo?

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

Finding the right flight to Colorado from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Colorado quick and easy, saving you time and money.

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

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

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

momondo helps you find the best flight between Washington, D.C. and Colorado by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Washington, D.C. to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Flights to New Yorkfrom $37

Flights to Los Angelesfrom $46

Flights to Miamifrom $52

Flights to Orlandofrom $36

Flights to Chicagofrom $56

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $55

Flights to Washington, D.C.from $56

Flights to Bostonfrom $77

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $55

Cheap flights from Washington, D.C. Reagan-National Airport to Colorado from $94

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

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

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

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

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

See travel insights to Colorado from

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

What is the cheapest month to fly to Colorado?

What is the cheapest day to depart on your flight to Colorado?

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

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

How far in advance should I book a flight to Colorado?

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

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

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

What airlines fly to Colorado?

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

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

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

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

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

Why use momondo?

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

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