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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Colorado

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

The number of flights available between Washington, D.C. and Colorado is 198 per week as of February 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

How long is the flight from Washington, D.C. to Colorado?

Flight times from Washington, D.C. to Colorado vary, but if you’re flying out of Baltimore and flying into Denver (one of the most popular routes), then the duration is 3h 45m on average. Another popular route from Washington, D.C. to Colorado is flying from Washington, D.C. to Denver, which will take roughly 3h 52m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Colorado?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from Washington, D.C. 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 Washington, D.C. to Colorado on average per day?

28 flights are operational daily from Washington, D.C. to Colorado as of February 2026. The most popular departure time for this route is 4:00PM, with 57% of flights per day taking off in the afternoon.

When did momondo last update prices for flights from Washington, D.C. to Colorado?

Prices for flights from Washington, D.C. to Colorado are updated daily.

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

The number of operators available for flights from Washington, D.C. to Colorado is 6 as of February 2026.

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

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 Washington, D.C. to Colorado.

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

The travel and health documents you'll need for your trip to Colorado 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 Colorado. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$47 Cheap Flights from Washington, D.C. to Colorado in 2026

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Find the cheapest flights from Washington, D.C. to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:00 pm - 4:22 pm

DCA

DEN

4h 22mnonstop

4:38 pm - 9:59 pm

DEN

DCA

3h 21mnonstop

$100Frontier

Tue, Mar 3 - Wed, Mar 11

8:00 am - 10:22 am

DCA

DEN

4h 22mnonstop

4:38 pm - 9:59 pm

DEN

DCA

3h 21mnonstop

$102Frontier

Mon, Mar 2 - Sat, Mar 7

8:00 am - 10:22 am

DCA

DEN

4h 22mnonstop

6:40 am - 12:04 pm

DEN

DCA

3h 24mnonstop

$105Frontier

Tue, Mar 10 - Mon, Mar 30

5:00 am - 9:54 am

DCA

EGE

6h 54m

1 stop

2:14 pm - 11:58 pm

EGE

DCA

7h 44m

1 stop

$197American Airlines

Sat, May 30 - Tue, Jun 2

6:00 am - 12:33 pm

IAD

HDN

8h 33m

1 stop

1:26 pm - 10:53 pm

HDN

IAD

7h 27m

1 stop

$197American Airlines

Thu, Mar 5 - Tue, Mar 10

7:18 am - 1:00 pm

IAD

HDN

7h 42m

1 stop

2:05 pm - 12:27 am

HDN

IAD

8h 22m

1 stop

$237Delta

Mon, Mar 16 - Thu, Mar 19

6:00 am - 10:50 am

IAD

EGE

6h 50m

1 stop

3:10 pm - 12:21 am

EGE

IAD

7h 11m

1 stop

$237Delta

Sat, Feb 21 - Tue, Feb 24

12:35 pm - 3:05 pm

IAD

HDN

4h 30mnonstop

11:25 am - 9:22 pm

HDN

IAD

7h 57m

1 stop

$267United Airlines

Sat, Mar 7 - Wed, Mar 11

2:12 pm - 8:41 pm

IAD

HDN

8h 29m

1 stop

3:35 pm - 11:20 pm

HDN

IAD

5h 45m

1 stop

$306United Airlines

Sat, Mar 7 - Wed, Mar 11

6:20 am - 9:45 am

IAD

COS

5h 25m

1 stop

4:05 pm - 11:40 pm

COS

IAD

5h 35m

1 stop

$341Southwest

Wed, Apr 8 - Wed, Apr 15

Frontier flights from Washington, D.C. to Colorado

Our best Frontier deals on Washington, D.C. to Colorado flight tickets

Frontier

Mar 3

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

4h 22m

DEN4:22 pmDenver Intl

Mar 11

DEN4:38 pmDenver Intl

3h 21m

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

$100

Frontier

Mar 2

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

4h 22m

DEN10:22 amDenver Intl

Mar 7

DEN4:38 pmDenver Intl

3h 21m

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

$102

Frontier

Mar 10

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

4h 22m

DEN10:22 amDenver Intl

Mar 30

DEN6:40 amDenver Intl

3h 24m

DCA12:04 pmWashington, D.C. Reagan-National

$105

Delta flights from Washington, D.C. to Colorado

Our best Delta deals on Washington, D.C. to Colorado flight tickets

Delta

Feb 21

IAD6:00 amWashington, D.C. Dulles Intl

6h 50m

1 stop

EGE10:50 amVail Eagle County

Feb 24

EGE3:10 pmVail Eagle County

7h 11m

1 stop

IAD12:21 amWashington, D.C. Dulles Intl

$237

Delta

Feb 21

DCA6:03 amWashington, D.C. Reagan-National

10h 02m

2 stops

EGE2:05 pmVail Eagle County

Feb 24

EGE3:10 pmVail Eagle County

6h 22m

1 stop

DCA11:32 pmWashington, D.C. Reagan-National

$242

Delta

Feb 7

BWI8:45 amBaltimore/Washington

8h 53m

1 stop

DEN3:38 pmDenver Intl

Feb 11

DEN12:59 amDenver Intl

6h 24m

1 stop

BWI9:23 amBaltimore/Washington

$277

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. 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

Tue 3/3

2:00 pm-4:22 pm

Nonstop4h 22m

Denver Intl

Wed 3/11

4:38 pm-9:59 pm

Nonstop3h 21m

$100

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Mon 3/2

8:00 am-10:22 am

Nonstop4h 22m

Denver Intl

Sat 3/7

4:38 pm-9:59 pm

Nonstop3h 21m

$102

Washington, D.C.Denver

DCA - DEN

DCADEN

Washington, D.C. Reagan-National

Tue 3/10

8:00 am-10:22 am

Nonstop4h 22m

Denver Intl

Mon 3/30

6:40 am-12:04 pm

Nonstop3h 24m

$105

Washington, D.C.Vail

DCA - EGE

DCAEGE

Washington, D.C. Reagan-National

Sat 5/30

5:00 am-9:54 am

1 stop6h 54m

Vail Eagle County

Tue 6/2

2:14 pm-11:58 pm

1 stop7h 44m

$197

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Thu 3/5

6:00 am-12:33 pm

1 stop8h 33m

Hayden Yampa Valley

Tue 3/10

1:26 pm-10:53 pm

1 stop7h 27m

$197

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Mon 3/16

7:18 am-1:00 pm

1 stop7h 42m

Hayden Yampa Valley

Thu 3/19

2:05 pm-12:27 am

1 stop8h 22m

$237

Washington, D.C.Vail

IAD - EGE

IADEGE

Washington, D.C. Dulles Intl

Sat 2/21

6:00 am-10:50 am

1 stop6h 50m

Vail Eagle County

Tue 2/24

3:10 pm-12:21 am

1 stop7h 11m

$237

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Sat 3/7

12:35 pm-3:05 pm

Nonstop4h 30m

Hayden Yampa Valley

Wed 3/11

11:25 am-9:22 pm

1 stop7h 57m

$267

Washington, D.C.Hayden

IAD - HDN

IADHDN

Washington, D.C. Dulles Intl

Sat 3/7

2:12 pm-8:41 pm

1 stop8h 29m

Hayden Yampa Valley

Wed 3/11

3:35 pm-11:20 pm

1 stop5h 45m

$306

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Wed 4/8

6:20 am-9:45 am

1 stop5h 25m

Colorado Springs

Wed 4/15

4:05 pm-11:40 pm

1 stop5h 35m

$341

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. 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 February is, on average, the cheapest month to fly to Colorado from Washington, D.C., with most prices found around $237. The month of August is another great option to travel to Colorado, with average flight prices from Washington, D.C. averaging around $242.

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

The cheapest day to depart from Washington, D.C. 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 Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $493.

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 $371. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $466 per ticket.

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

Fly from Washington, D.C. Reagan-National to Denver Intl for the best Washington, D.C. - 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. when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $344 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. for as low as $292 on momondo.

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

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

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

Cheap Washington, D.C. to Colorado flight deals and tips

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

Best Price Found	$111
Fastest flight time	3h 45m
Direct flights	Every day
Airports in Colorado	87 airports

The best one-way flight to Colorado from Washington, D.C. in the past 72 hours is $111. The best round-trip flight deal from Washington, D.C. to Colorado found on momondo in the last 72 hours is $164.

The fastest flight from Washington, D.C. to Colorado takes 3h 45m

Direct flights go from Washington, D.C. to Colorado every day.

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

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Colorado?
Prices for flights from Washington, D.C. to Colorado are updated daily.
How many operators does momondo search for flights from Washington, D.C. to Colorado?
The number of operators available for flights from Washington, D.C. to Colorado is 6 as of February 2026.
How old do you have to be to fly from Washington, D.C. to Colorado?
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 Washington, D.C. to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents you'll need for your trip to Colorado 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 Colorado. 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 Washington, D.C. to Colorado?
Based on momondo bookings for flights between Washington, D.C. and Colorado, the leading plane model is Boeing 737 MAX 8, making up 16.05% of the total bookings. Other popular models include Boeing 737-900 with 13.30%, Boeing 737-800 Passenger/BBJ2 (winglets) with 11.81%, and Airbus A320neo with 10.95%.

Best airlines flying from Washington, D.C. to Colorado

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $82	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 8,146 reviews	Search Delta flights
American Airlines	PriceFrom $160	Free Cancellation	Rating 7.2 11,222 reviews	Search American Airlines flights
Southwest	PriceFrom $177	Free Cancellation	Rating 8.0 4,274 reviews	Search Southwest flights
United Airlines	PriceFrom $188	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
JetBlue	PriceFrom $325	Free Cancellation	Rating 7.2 2,893 reviews	Search JetBlue flights

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Washington, D.C. to Colorado flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from Washington, D.C..

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

Yes momondo offers price alerts on flights to Colorado from Washington, D.C.. 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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Flights to New Yorkfrom $49

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Flights to Chicagofrom $50

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Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $51

Flights to Bostonfrom $50

Flights to Atlantafrom $49

Flights to Dallasfrom $49

Flights to Seattlefrom $83

Cheap flights from Washington, D.C. to Colorado from $47

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Colorado departing on 3/7. 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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Frontier flights from Washington, D.C. to Colorado

Our best Frontier deals on Washington, D.C. to Colorado flight tickets

Delta flights from Washington, D.C. to Colorado

Our best Delta deals on Washington, D.C. to Colorado flight tickets

momondo Fare Finder

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

See travel insights to Colorado from

How to get the cheapest flight ticket from Washington, D.C. to Colorado

What is the cheapest month to fly to Colorado?

The month of February is, on average, the cheapest month to fly to Colorado from Washington, D.C., with most prices found around $237. The month of August is another great option to travel to Colorado, with average flight prices from Washington, D.C. averaging around $242.

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 $371. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $466 per ticket.

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

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

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

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

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

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

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. to Colorado

What airlines fly to Colorado?

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

28 flights are operational daily from Washington, D.C. to Colorado as of February 2026. The most popular departure time for this route is 4:00PM, with 57% of flights per day taking off in the afternoon.

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

The number of flights available between Washington, D.C. and Colorado is 198 per week as of February 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

How long is the flight from Washington, D.C. to Colorado?

Cheap Washington, D.C. to Colorado flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

When did momondo last update prices for flights from Washington, D.C. to Colorado?

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

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

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

What is the most popular plane model from Washington, D.C. to Colorado?

Best airlines flying from Washington, D.C. to Colorado

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Washington, D.C. 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

Washington, D.C. flight routes

According to popular flight searches on momondo this year

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