What is the cheapest airline that flies from District of Columbia to Colorado?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from District of Columbia to Colorado

How many flights depart from District of Columbia to Colorado on average per day?

As of September 2025, there are 21 flights per day flying from District of Columbia to Colorado. The most common time of day flights depart is 5:00PM, with 53% of flights taking off in the afternoon.

What airlines fly to Colorado?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from District of Columbia according to our data. Frontier is the first choice among our users, with 38% 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 flights depart from District of Columbia to Colorado on average per week?

As of September 2025, 153 flights take off from District of Columbia and land in Colorado each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.

When did momondo last update prices for flights from District of Columbia to Colorado?

Prices for flights from District of Columbia to Colorado are refreshed on a daily basis.

How many operators does momondo search for flights from District of Columbia to Colorado?

There are 6 operators available for flights from District of Columbia to Colorado as of September 2025.

How old do you have to be to fly from District of Columbia 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 District of Columbia 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.

$83 Cheap Flights from District of Columbia to Colorado in 2025/26

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Find the cheapest flights from District of Columbia to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:00 am - 9:08 amDCA-DEN

4h 08mnonstop

7:38 am - 1:02 pmDEN-DCA

3h 24mnonstop

$138Frontier

Find Deal

Fri, Oct 24 - Fri, Oct 31

7:00 am - 9:08 amDCA-DEN

4h 08mnonstop

4:34 pm - 9:59 pmDEN-DCA

3h 25mnonstop

$139Frontier

Find Deal

Wed, Oct 15 - Sat, Oct 18

6:40 am - 8:30 amIAD-DEN

3h 50mnonstop

5:40 pm - 11:00 pmDEN-IAD

3h 20mnonstop

$177Southwest

Find Deal

Sat, Oct 25 - Sat, Nov 1

10:10 pm - 12:15 amIAD-DEN

4h 05mnonstop

11:59 pm - 5:16 amDEN-IAD

3h 17mnonstop

$197United Airlines

Find Deal

Fri, Nov 7 - Tue, Nov 11

5:37 pm - 10:12 pmIAD-DEN

6h 35m1 stop

12:33 pm - 11:07 pmDEN-IAD

8h 34m2 stops

$202American Airlines

Find Deal

Sat, Nov 1 - Tue, Nov 4

6:34 am - 1:23 pmIAD-DEN

8h 49m2 stops

10:42 am - 9:31 pmDEN-IAD

8h 49m1 stop

$203American Airlines

Find Deal

Sat, Oct 25 - Sat, Nov 1

2:51 pm - 9:38 pmDCA-COS

8h 47m1 stop

12:10 pm - 8:45 pmCOS-DCA

6h 35m1 stop

$237United Airlines

Find Deal

Wed, Nov 5 - Tue, Nov 11

3:33 pm - 8:30 pmIAD-COS

6h 57m1 stop

1:16 pm - 11:20 pmCOS-IAD

8h 04m1 stop

$237Delta

Find Deal

Tue, Oct 21 - Tue, Oct 28

9:45 am - 8:30 pmDCA-COS

12h 45m2 stops

1:16 pm - 8:33 pmCOS-DCA

5h 17m1 stop

$242Delta

Find Deal

Wed, Nov 5 - Thu, Nov 6

11:40 am - 5:15 pmDCA-COS

7h 35m1 stop

5:15 am - 2:00 pmCOS-DCA

6h 45m1 stop

$254Southwest

Find Deal

Sat, Dec 6 - Mon, Dec 8

American Airlines flights from District of Columbia to Colorado

Our best American Airlines deals on District of Columbia to Colorado flight tickets

American Airlines

Nov 1

IAD5:37 pmWashington, D.C. Dulles Intl

6h 35m

1 stop

DEN10:12 pmDenver Intl

Nov 4

DEN12:33 pmDenver Intl

8h 34m

2 stops

IAD11:07 pmWashington, D.C. Dulles Intl

$202

Find similar

American Airlines

Oct 25

IAD6:34 amWashington, D.C. Dulles Intl

8h 49m

2 stops

DEN1:23 pmDenver Intl

Nov 1

DEN10:42 amDenver Intl

8h 49m

1 stop

IAD9:31 pmWashington, D.C. Dulles Intl

$203

Find similar

American Airlines

Oct 23

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

6h 35m

1 stop

COS11:34 amColorado Springs

Oct 30

COS12:05 pmColorado Springs

8h 10m

1 stop

DCA10:15 pmWashington, D.C. Reagan-National

$235

Find similar

Frontier flights from District of Columbia to Colorado

Our best Frontier deals on District of Columbia to Colorado flight tickets

Frontier

Oct 24

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

4h 08m

DEN9:08 amDenver Intl

Oct 31

DEN7:38 amDenver Intl

3h 24m

DCA1:02 pmWashington, D.C. Reagan-National

$138

Find similar

Frontier

Oct 15

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

4h 08m

DEN9:08 amDenver Intl

Oct 18

DEN4:34 pmDenver Intl

3h 25m

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

$139

Find similar

Frontier

Jan 6

DCA2:00 pmWashington, D.C. Reagan-National

4h 15m

DEN4:15 pmDenver Intl

Jan 10

DEN4:38 pmDenver Intl

3h 21m

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

$140

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia 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

Fri 10/24

7:00 am-9:08 am

Nonstop4h 08m

Denver Intl

Fri 10/31

7:38 am-1:02 pm

Nonstop3h 24m

$138

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Wed 10/15

7:00 am-9:08 am

Nonstop4h 08m

Denver Intl

Sat 10/18

4:34 pm-9:59 pm

Nonstop3h 25m

$139

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 10/25

6:40 am-8:30 am

Nonstop3h 50m

Denver Intl

Sat 11/1

5:40 pm-11:00 pm

Nonstop3h 20m

$177

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 11/7

10:10 pm-12:15 am

Nonstop4h 05m

Denver Intl

Tue 11/11

11:59 pm-5:16 am

Nonstop3h 17m

$197

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 11/1

5:37 pm-10:12 pm

1 stop6h 35m

Denver Intl

Tue 11/4

12:33 pm-11:07 pm

2 stops8h 34m

$202

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 10/25

6:34 am-1:23 pm

2 stops8h 49m

Denver Intl

Sat 11/1

10:42 am-9:31 pm

1 stop8h 49m

$203

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 11/5

2:51 pm-9:38 pm

1 stop8h 47m

Colorado Springs

Tue 11/11

12:10 pm-8:45 pm

1 stop6h 35m

$237

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Tue 10/21

3:33 pm-8:30 pm

1 stop6h 57m

Colorado Springs

Tue 10/28

1:16 pm-11:20 pm

1 stop8h 04m

$237

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Wed 11/5

9:45 am-8:30 pm

2 stops12h 45m

Colorado Springs

Thu 11/6

1:16 pm-8:33 pm

1 stop5h 17m

$242

Washington, D.C.Colorado Springs

DCA - COS

DCACOS

Washington, D.C. Reagan-National

Sat 12/6

11:40 am-5:15 pm

1 stop7h 35m

Colorado Springs

Mon 12/8

5:15 am-2:00 pm

1 stop6h 45m

$254

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 District of Columbia 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 August is, on average, the cheapest month to fly to Colorado from District of Columbia, with most prices found around $242. The month of January is another great option to travel to Colorado, with average flight prices from District of Columbia averaging around $248.

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

The cheapest day to depart from District of Columbia to Colorado is on a Wednesday when prices can be found for as low as $395. On the other hand, Sunday is the most expensive day to depart from District of Columbia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $513.

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 evening when flights can be purchased for as low as $370. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $483 per ticket.

What is the cheapest District of Columbia to Colorado flight route?

Fly from Washington, D.C. Reagan-National to Denver Intl for the best District of Columbia - 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 District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $341 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from District of Columbia for as low as $275 on momondo.

What cabin class options are available on District of Columbia to Colorado flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to Colorado flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Colorado.

Cheap District of Columbia to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Colorado

Best Price Found	$132
Fastest flight time	3h 45m
Direct flights	Every day
Airports in Colorado	1 airport

The best one-way flight to Colorado from District of Columbia in the past 72 hours is $132. The best round-trip flight deal from District of Columbia to Colorado found on momondo in the last 72 hours is $128.

The fastest flight from District of Columbia to Colorado takes 3h 45m

Direct flights go from District of Columbia to Colorado every day.

There is 1 airport near Colorado: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from District of Columbia to Colorado?
Prices for flights from District of Columbia to Colorado are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Colorado?
There are 6 operators available for flights from District of Columbia to Colorado as of September 2025.
How old do you have to be to fly from District of Columbia 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 District of Columbia 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 District of Columbia to Colorado?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to Colorado is Boeing 737 MAX 8, representing 14.39% of all bookings. The subsequent popular models are Airbus A320neo at 12.25%, Boeing 737-900 at 12.20%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 12.14%.

Best airlines flying from District of Columbia to Colorado

Compare and see reviews for airlines that fly from District of Columbia to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $104	Free Cancellation	Rating 5.8 3,163 reviews	Search Frontier flights
JetBlue	PriceFrom $128	Free Cancellation	Rating 7.2 2,911 reviews	Search JetBlue flights
Delta	PriceFrom $158	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
American Airlines	PriceFrom $160	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $178	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Colorado?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Colorado from District of Columbia.

Can I find flights from District of Columbia to Colorado with flexible booking policies on momondo?

Yes. All flights to Colorado from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Colorado?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Colorado.

I’m not ready to book a flight from District of Columbia to Colorado right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia to Colorado now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Colorado and let you know when they change.

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.

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Find better results for your trip to Colorado

Popular cities in Colorado

Flights to New Yorkfrom $50

Flights to Los Angelesfrom $49

Flights to Miamifrom $52

Flights to Chicagofrom $65

Flights to Orlandofrom $57

Flights to Las Vegasfrom $47

Flights to San Franciscofrom $59

Flights to Washington, D.C.from $60

Flights to Bostonfrom $68

Flights to Atlantafrom $51

Flights to Dallasfrom $60

Flights to Seattlefrom $86

District of Columbia flight routes

Flights from Washington, D.C. Dulles Intl to Wilmington New Hanover County

Flights from Washington, D.C. Dulles Intl to Tampa

Flights from Washington, D.C. Dulles Intl to Miami

Flights from Washington, D.C. Dulles Intl to Orlando

Flights from Washington, D.C. Dulles Intl to Tweed-New Haven

Flights from Washington, D.C. Dulles Intl to Atlanta Hartsfield-Jackson

Cheap flights from District of Columbia to Colorado from $83

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Colorado departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from District of Columbia to Colorado

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from District of Columbia to Colorado

Our best American Airlines deals on District of Columbia to Colorado flight tickets

Frontier flights from District of Columbia to Colorado

Our best Frontier deals on District of Columbia to Colorado flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Colorado that are best for you.

See travel insights to Colorado from

How to get the cheapest flight ticket from District of Columbia 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

What is the cheapest month to fly to Colorado?

The month of August is, on average, the cheapest month to fly to Colorado from District of Columbia, with most prices found around $242. The month of January is another great option to travel to Colorado, with average flight prices from District of Columbia averaging around $248.

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?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $370. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $483 per ticket.

What is the cheapest District of Columbia to Colorado flight route?

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

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

What cabin class options are available on District of Columbia to Colorado flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to Colorado flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Colorado.

What is the cheapest airline that flies from District of Columbia to Colorado?

Frontier, United Airlines, and American Airlines are the most popular carriers operating from District of Columbia to Colorado

What airlines fly to Colorado?

How many flights depart from District of Columbia to Colorado on average per day?

As of September 2025, there are 21 flights per day flying from District of Columbia to Colorado. The most common time of day flights depart is 5:00PM, with 53% of flights taking off in the afternoon.

How many flights depart from District of Columbia to Colorado on average per week?

As of September 2025, 153 flights take off from District of Columbia and land in Colorado each week. The most common flight departure day for this route is Thu, with 22% of weekly flights taking off on this day.

Cheap District of Columbia to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Colorado

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

When did momondo last update prices for flights from District of Columbia to Colorado?

How many operators does momondo search for flights from District of Columbia to Colorado?

How old do you have to be to fly from District of Columbia to Colorado?

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

What is the most popular plane model from District of Columbia to Colorado?

Best airlines flying from District of Columbia to Colorado

Compare and see reviews for airlines that fly from District of Columbia to Colorado with momondo

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Colorado?

Can I find flights from District of Columbia to Colorado with flexible booking policies on momondo?

How can momondo help me find flights from District of Columbia to Colorado?

I’m not ready to book a flight from District of Columbia to Colorado right now. Can momondo alert me if prices change?

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

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo