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

Southwest, United Airlines, and Frontier 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 81% 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 June 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.

$144 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 day?

The number of flights available between Washington, D.C. Reagan-National Airport and Colorado is 8 per day as of June 2026. The most frequent departure time is 4:00PM, with 60% of daily flights leaving in the afternoon.

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

As of June 2026, there are 56 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 20% of flights taking off on this day.

Discover deals from 900+ travel sites with momondo.

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.

5:00 am - 9:53 am

DCA

EGE

6h 53m

1 stop

10:33 am - 9:31 pm

EGE

DCA

8h 58m

1 stop

$241American Airlines

Sat, Jul 4 - Fri, Jul 10

6:59 am - 1:30 pm

DCA

MTJ

8h 31m

1 stop

2:21 pm - 11:58 pm

MTJ

DCA

7h 37m

1 stop

$243American Airlines

Mon, Aug 24 - Sat, Aug 29

6:05 am - 10:47 am

DCA

COS

6h 42m

1 stop

1:20 pm - 10:44 pm

COS

DCA

7h 24m

1 stop

$261Delta

Tue, Aug 11 - Wed, Aug 19

2:45 pm - 9:38 pm

DCA

COS

8h 53m

2 stops

1:20 pm - 11:48 pm

COS

DCA

8h 28m

1 stop

$266Delta

Tue, Aug 11 - Wed, Aug 19

5:00 pm - 10:42 pm

DCA

DEN

7h 42m

1 stop

11:37 pm - 12:00 pm

DEN

DCA

10h 23m

1 stop

$282JetBlue

Fri, Aug 21 - Sun, Aug 30

6:20 am - 12:57 pm

DCA

DEN

8h 37m

1 stop

11:37 pm - 10:10 am

DEN

DCA

8h 33m

1 stop

$283JetBlue

Tue, Aug 11 - Wed, Aug 19

4:20 pm - 8:25 pm

DCA

MTJ

6h 05m

1 stop

12:40 pm - 9:09 pm

MTJ

DCA

6h 29m

1 stop

$340United Airlines

Tue, Aug 25 - Thu, Aug 27

7:00 am - 11:05 am

DCA

EGE

6h 05m

1 stop

1:30 pm - 10:13 pm

EGE

DCA

6h 43m

1 stop

$341United Airlines

Sat, Dec 5 - Tue, Dec 8

12:15 pm - 7:20 pm

DCA

MTJ

9h 05m

2 stops

9:15 am - 7:25 pm

MTJ

DCA

8h 10m

2 stops

$352Southwest

Mon, Aug 24 - Sat, Aug 29

10:45 am - 7:20 pm

DCA

HDN

10h 35m

2 stops

8:45 am - 8:55 pm

HDN

DCA

10h 10m

2 stops

$408Southwest

Tue, Aug 18 - Tue, Aug 25

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

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

JetBlue

Aug 21

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

7h 42m

1 stop

DEN10:42 pmDenver Intl

Aug 30

DEN11:37 pmDenver Intl

10h 23m

1 stop

DCA12:00 pmWashington, D.C. Reagan-National

$282

JetBlue

Aug 11

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

8h 37m

1 stop

DEN12:57 pmDenver Intl

Aug 19

DEN11:37 pmDenver Intl

8h 33m

1 stop

DCA10:10 amWashington, D.C. Reagan-National

$283

JetBlue

Jul 9

DCA1:25 pmWashington, D.C. Reagan-National

11h 16m

1 stop

DEN10:41 pmDenver Intl

Jul 31

DEN2:09 pmDenver Intl

6h 50m

1 stop

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

$288

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

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

Southwest

Aug 25

DCA4:50 pmWashington, D.C. Reagan-National

5h 00m

1 stop

DEN7:50 pmDenver Intl

Sep 2

DEN1:55 pmDenver Intl

7h 10m

2 stops

DCA11:05 pmWashington, D.C. Reagan-National

$308

Southwest

Aug 14

DCA4:05 pmWashington, D.C. Reagan-National

5h 50m

1 stop

COS7:55 pmColorado Springs

Aug 18

COS6:15 amColorado Springs

7h 30m

2 stops

DCA3:45 pmWashington, D.C. Reagan-National

$339

Southwest

Aug 14

DCA2:15 pmWashington, D.C. Reagan-National

7h 40m

1 stop

COS7:55 pmColorado Springs

Aug 18

COS10:45 amColorado Springs

9h 35m

1 stop

DCA10:20 pmWashington, D.C. Reagan-National

$340

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.Vail

DCA - EGE

DCAEGE

Washington, D.C. Reagan-National

Sat 7/4

5:00 am-9:53 am

1 stop6h 53m

Vail Eagle County

Fri 7/10

10:33 am-9:31 pm

1 stop8h 58m

$241

Washington, D.C.Montrose

DCA - MTJ

DCAMTJ

Washington, D.C. Reagan-National

Mon 8/24

6:59 am-1:30 pm

1 stop8h 31m

Montrose County

Sat 8/29

2:21 pm-11:58 pm

1 stop7h 37m

$243

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Tue 8/11

6:05 am-10:47 am

1 stop6h 42m

Colorado Springs

Wed 8/19

1:20 pm-10:44 pm

1 stop7h 24m

$261

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Tue 8/11

2:45 pm-9:38 pm

2 stops8h 53m

Colorado Springs

Wed 8/19

1:20 pm-11:48 pm

1 stop8h 28m

$266

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Fri 8/21

5:00 pm-10:42 pm

1 stop7h 42m

Denver Intl

Sun 8/30

11:37 pm-12:00 pm

1 stop10h 23m

$282

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 8/11

6:20 am-12:57 pm

1 stop8h 37m

Denver Intl

Wed 8/19

11:37 pm-10:10 am

1 stop8h 33m

$283

Quickest round-trip

Washington, D.C.Montrose

DCA - MTJ

DCAMTJ

Washington, D.C. Reagan-National

Tue 8/25

4:20 pm-8:25 pm

1 stop6h 05m

Montrose County

Thu 8/27

12:40 pm-9:09 pm

1 stop6h 29m

$340

Washington, D.C.Vail

DCA - EGE

DCAEGE

Washington, D.C. Reagan-National

Sat 12/5

7:00 am-11:05 am

1 stop6h 05m

Vail Eagle County

Tue 12/8

1:30 pm-10:13 pm

1 stop6h 43m

$341

Washington, D.C.Montrose

DCA - MTJ

DCAMTJ

Washington, D.C. Reagan-National

Mon 8/24

12:15 pm-7:20 pm

2 stops9h 05m

Montrose County

Sat 8/29

9:15 am-7:25 pm

2 stops8h 10m

$352

Washington, D.C.Hayden

DCA - HDN

DCAHDN

Washington, D.C. Reagan-National

Tue 8/18

10:45 am-7:20 pm

2 stops10h 35m

Hayden Yampa Valley

Tue 8/25

8:45 am-8:55 pm

2 stops10h 10m

$408

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 $57. The month of February is another great option to travel to Colorado, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $58.

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 Tuesday when prices can be found for as low as $270. On the other hand, Sunday 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 $312.

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

The cheapest time of day to fly to Colorado is in the morning when flights can be purchased for as low as $277. In the afternoon is when there is more demand to fly to Colorado, so prices are often more expensive at around $314 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 from Washington, D.C. Reagan-National Airport 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 $289 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 $237 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Reagan-National Airport to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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	$196
Fastest flight time	3h 54m
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 $196. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Colorado found on momondo in the last 72 hours is $348.

The fastest flight from Washington, D.C. Reagan-National Airport to Colorado takes 3h 54m

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 June 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 Airbus A320neo, making up 14.96% of the total bookings. Other popular models include Boeing 737 MAX 8 with 13.72%, Airbus A321neo with 12.59%, and Boeing 737-900 with 11.91%.

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 $104	Free Cancellation	Rating 5.6 2,888 reviews	Search Frontier flights
JetBlue	PriceFrom $113	Free Cancellation	Rating 7.1 2,983 reviews	Search JetBlue flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.1 11,661 reviews	Search American Airlines flights
United Airlines	PriceFrom $218	Free Cancellation	Rating 7.4 9,830 reviews	Search United Airlines flights
Southwest	PriceFrom $228	Free Cancellation	Rating 7.9 4,235 reviews	Search Southwest flights
Delta	PriceFrom $277	Free Cancellation	Rating 7.9 8,395 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 $83

Flights to Los Angelesfrom $69

Flights to Orlandofrom $65

Flights to Miamifrom $76

Flights to Chicagofrom $58

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $56

Flights to Bostonfrom $62

Flights to Atlantafrom $50

Flights to Fort Lauderdalefrom $55

Flights to Dallasfrom $87

Cheap flights from Washington, D.C. Reagan-National Airport to Colorado from $144

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

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

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

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

What cabin class options are available 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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