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

Frontier, Delta, 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 6 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 April 2026, there are 6 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.

$92 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 April 2026, there are 61 flights per week flying from Washington, D.C. Reagan-National Airport to Colorado. The most common day of the week flights depart is Fri, with 20% 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 8 per day as of April 2026. The most frequent departure time is 4:00PM, 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.

6:00 pm - 8:14 pm

DCA

DEN

4h 14mnonstop

7:31 am - 12:59 pm

DEN

DCA

3h 28mnonstop

$194Frontier

Tue, May 5 - Thu, May 7

7:00 am - 9:07 am

DCA

DEN

4h 07mnonstop

7:31 am - 12:59 pm

DEN

DCA

3h 28mnonstop

$195Frontier

Wed, May 27 - Mon, Jun 1

1:10 pm - 6:05 pm

DCA

COS

6h 55m

1 stop

2:30 pm - 11:25 pm

COS

DCA

6h 55m

1 stop

$335Southwest

Wed, May 13 - Wed, May 20

6:00 am - 11:19 am

DCA

MTJ

7h 19m

1 stop

12:00 pm - 10:15 pm

MTJ

DCA

8h 15m

1 stop

$351United Airlines

Mon, Jun 1 - Sat, Jun 6

5:00 am - 9:54 am

DCA

COS

6h 54m

1 stop

3:45 pm - 11:59 pm

COS

DCA

6h 14m

1 stop

$351American Airlines

Thu, May 28 - Tue, Jun 2

6:00 am - 11:45 am

DCA

ASE

7h 45m

1 stop

11:43 am - 9:06 pm

ASE

DCA

7h 23m

1 stop

$355United Airlines

Tue, Jun 9 - Thu, Jun 11

7:59 am - 6:16 pm

DCA

GJT

12h 17m

2 stops

7:40 am - 8:45 pm

GJT

DCA

11h 05m

2 stops

$359Delta

Mon, Jun 1 - Sat, Jun 6

7:00 am - 11:21 am

DCA

ASE

6h 21m

1 stop

8:05 am - 7:19 pm

ASE

DCA

9h 14m

2 stops

$360Delta

Tue, Aug 18 - Wed, Aug 26

11:56 am - 7:58 pm

DCA

DRO

10h 02m

2 stops

12:40 pm - 9:27 pm

DRO

DCA

6h 47m

1 stop

$364American Airlines

Tue, Aug 11 - Sat, Sep 5

1:10 pm - 6:05 pm

DCA

COS

6h 55m

1 stop

5:30 am - 4:45 pm

COS

DCA

9h 15m

1 stop

$386Southwest

Wed, May 27 - Fri, May 29

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

May 5

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

4h 14m

DEN8:14 pmDenver Intl

May 7

DEN7:31 amDenver Intl

3h 28m

DCA12:59 pmWashington, D.C. Reagan-National

$194

Frontier

May 27

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

4h 07m

DEN9:07 amDenver Intl

Jun 1

DEN7:31 amDenver Intl

3h 28m

DCA12:59 pmWashington, D.C. Reagan-National

$195

Frontier

Jun 6

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

4h 07m

DEN9:07 amDenver Intl

Jun 8

DEN4:27 pmDenver Intl

3h 31m

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

$196

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

May 28

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

6h 54m

1 stop

COS9:54 amColorado Springs

Jun 2

COS3:45 pmColorado Springs

6h 14m

1 stop

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

$351

American Airlines

May 24

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

9h 21m

2 stops

ASE12:21 pmAspen Pitkin County

Jun 2

ASE12:51 pmAspen Pitkin County

8h 09m

1 stop

DCA11:00 pmWashington, D.C. Reagan-National

$360

American Airlines

Apr 28

DCA6:57 amWashington, D.C. Reagan-National

7h 15m

1 stop

GJT12:12 pmGrand Junction Regnl

May 2

GJT11:46 amGrand Junction Regnl

9h 10m

2 stops

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

$364

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

Cheapest round-trip

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 5/5

6:00 pm-8:14 pm

Nonstop4h 14m

Denver Intl

Thu 5/7

7:31 am-12:59 pm

Nonstop3h 28m

$194

Quickest round-trip

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 5/27

7:00 am-9:07 am

Nonstop4h 07m

Denver Intl

Mon 6/1

7:31 am-12:59 pm

Nonstop3h 28m

$195

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 5/13

1:10 pm-6:05 pm

1 stop6h 55m

Colorado Springs

Wed 5/20

2:30 pm-11:25 pm

1 stop6h 55m

$335

Washington, D.C.Montrose

DCA - MTJ

DCAMTJ

Washington, D.C. Reagan-National

Mon 6/1

6:00 am-11:19 am

1 stop7h 19m

Montrose County

Sat 6/6

12:00 pm-10:15 pm

1 stop8h 15m

$351

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Thu 5/28

5:00 am-9:54 am

1 stop6h 54m

Colorado Springs

Tue 6/2

3:45 pm-11:59 pm

1 stop6h 14m

$351

Washington, D.C.Aspen

DCA - ASE

DCAASE

Washington, D.C. Reagan-National

Tue 6/9

6:00 am-11:45 am

1 stop7h 45m

Aspen Pitkin County

Thu 6/11

11:43 am-9:06 pm

1 stop7h 23m

$355

Washington, D.C.Grand Junction

DCA - GJT

DCAGJT

Washington, D.C. Reagan-National

Mon 6/1

7:59 am-6:16 pm

2 stops12h 17m

Grand Junction Regnl

Sat 6/6

7:40 am-8:45 pm

2 stops11h 05m

$359

Washington, D.C.Aspen

DCA - ASE

DCAASE

Washington, D.C. Reagan-National

Tue 8/18

7:00 am-11:21 am

1 stop6h 21m

Aspen Pitkin County

Wed 8/26

8:05 am-7:19 pm

2 stops9h 14m

$360

Washington, D.C.Durango

DCA - DRO

DCADRO

Washington, D.C. Reagan-National

Tue 8/11

11:56 am-7:58 pm

2 stops10h 02m

Durango La Plata County

Sat 9/5

12:40 pm-9:27 pm

1 stop6h 47m

$364

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 5/27

1:10 pm-6:05 pm

1 stop6h 55m

Colorado Springs

Fri 5/29

5:30 am-4:45 pm

1 stop9h 15m

$386

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 $222.

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 $248. 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 $285.

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 $254. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $299 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 $274 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 $154 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	$121
Fastest flight time	3h 56m
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 $121. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Colorado found on momondo in the last 72 hours is $240.

The fastest flight from Washington, D.C. Reagan-National Airport to Colorado takes 3h 56m

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

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

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 April 2026, there are 6 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 16.28% of the total bookings. Other popular models include Airbus A320neo with 14.34%, Boeing 737-900 with 13.25%, and Airbus A321neo with 13.09%.

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 $103	Free Cancellation	Rating 5.7 2,987 reviews	Search Frontier flights
JetBlue	PriceFrom $113	Free Cancellation	Rating 7.2 2,945 reviews	Search JetBlue flights
Delta	PriceFrom $189	Free Cancellation	Rating 7.9 8,421 reviews	Search Delta flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.1 11,599 reviews	Search American Airlines flights
United Airlines	PriceFrom $218	Free Cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights
Southwest	PriceFrom $228	Free Cancellation	Rating 8.0 4,331 reviews	Search Southwest 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 $56

Flights to Los Angelesfrom $53

Flights to Orlandofrom $53

Flights to Miamifrom $50

Flights to Chicagofrom $67

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $55

Flights to Bostonfrom $70

Flights to Atlantafrom $53

Flights to Dallasfrom $62

Flights to Fort Lauderdalefrom $47

Cheap flights from Washington, D.C. Reagan-National Airport to Colorado from $92

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

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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

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

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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

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