HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$77+ Cheap flights from Colorado to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Washington, D.C. with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Colorado to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$131
(Mytrip)

One-way from

$77
(Trip.com)
From Colorado to Washington, D.C. (WAS)
Search Deals
One-way flight from Colorado to Washington, D.C. (WAS)
Search Deals

Find flight deals from Colorado to Washington, D.C.

Cheapest flights from Colorado to Washington, D.C.
Explore the most affordable flight options available from Colorado to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This FlightHub deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:29 amDEN - BWI
1 stop29h 13mFrontier
Mon 1/612:02 pmBWI - DEN
1 stop13h 55mFrontier
Deal found 12/19$207
This Frontier deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:58 pmDEN - IAD
1 stop12h 27mFrontier
Mon 1/63:24 pmIAD - DEN
1 stop10h 10mFrontier
Deal found 12/19$218
This Trip.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:42 pmDEN - DCA
Nonstop3h 17mFrontier
Tue 1/71:01 pmDCA - DEN
Nonstop4h 19mFrontier
Deal found 12/18$264
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:52 amCOS - DCA
1 stop6h 47mAmerican Airlines
Fri 1/35:00 amDCA - COS
1 stop7h 12mAmerican Airlines
Deal found 12/18$343
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:00 amDEN - IAD
Nonstop3h 23mUnited Airlines
Tue 1/74:00 pmIAD - DEN
Nonstop4h 08mUnited Airlines
Deal found 12/17$353
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2512:33 pmDEN - DCA
1 stop9h 07mAmerican Airlines
Wed 1/810:37 amDCA - DEN
1 stop7h 08mAmerican Airlines
Deal found 12/18$363
This JetBlue deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:16 pmDEN - DCA
1 stop8h 43mJetBlue
Sat 1/116:00 pmDCA - DEN
1 stop6h 59mJetBlue
Deal found 12/18$416
This Southwest deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:45 amDEN - IAD
Nonstop3h 15mSouthwest
Wed 1/85:50 pmIAD - DEN
Nonstop4h 05mSouthwest
Deal found 12/18$419
This United deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:05 amCOS - IAD
1 stop7h 59mUnited Airlines
Fri 1/36:30 amIAD - COS
1 stop6h 19mUnited Airlines
Deal found 12/18$423
This United deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:00 amCOS - DCA
1 stop5h 59mUnited Airlines
Sat 1/46:30 amDCA - COS
1 stop7h 19mUnited Airlines
Deal found 12/18$423
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:45 amDEN - DCA
1 stop9h 50mDelta
Thu 1/911:35 amDCA - DEN
1 stop10h 11mDelta
Deal found 12/18$427
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:00 amDEN - IAD
1 stop7h 50mDelta
Sat 1/117:20 amIAD - DEN
1 stop10h 00mDelta
Deal found 12/18$436

Find flights from Colorado to Washington, D.C. within your budget

Customize your flight search to find flights from Colorado to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 1/16

6:00 am-5:57 pm

1 stop9h 57m

Washington, D.C. Dulles Intl

Thu 1/30

6:57 pm-11:40 pm

1 stop30h 43m

$131

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Sun 1/19

4:39 pm-9:59 pm

Nonstop3h 20m

Washington, D.C. Reagan-National

Wed 1/22

6:00 pm-8:12 pm

Nonstop4h 12m

$131

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Fri 1/17

10:56 am-8:13 pm

1 stop7h 17m

Baltimore/Washington

Fri 1/24

8:52 am-3:17 pm

1 stop8h 25m

$148

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sat 2/22

10:15 am-3:33 pm

Nonstop3h 18m

Washington, D.C. Dulles Intl

Wed 2/26

5:15 pm-7:24 pm

Nonstop4h 09m

$177

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sat 2/1

9:05 am-2:20 pm

Nonstop3h 15m

Washington, D.C. Dulles Intl

Sat 2/8

7:15 am-9:20 am

Nonstop4h 05m

$198

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 1/15

7:45 am-3:37 pm

1 stop5h 52m

Washington, D.C. Reagan-National

Tue 1/28

4:13 pm-6:25 pm

Nonstop4h 12m

$207

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 1/24

11:55 pm-11:04 am

1 stop9h 09m

Washington, D.C. Reagan-National

Sat 1/25

3:00 pm-10:59 pm

1 stop9h 59m

$210

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Wed 4/9

11:00 am-4:28 pm

Nonstop3h 28m

Baltimore/Washington

Mon 4/14

12:38 pm-5:09 pm

1 stop6h 31m

$210

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Mon 1/13

6:00 am-5:01 pm

1 stop9h 01m

Washington, D.C. Dulles Intl

Sat 1/18

6:00 pm-5:36 pm

1 stop25h 36m

$216

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Sat 1/11

6:05 am-1:46 pm

1 stop5h 41m

Washington, D.C. Dulles Intl

Wed 1/22

12:31 pm-5:43 pm

1 stop7h 12m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Colorado to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Colorado to Washington, D.C.

Get recent, data-driven insights about flights from Colorado to Washington, D.C. including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Colorado to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Colorado to Washington, D.C. (average of $309). Flying from Colorado to Washington, D.C. in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CO to WAS?

Find hourly flight availability from Colorado to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Washington, D.C. as you normally would.

Weekly flight availability from Colorado to Washington, D.C.

Explore weekly flight availability from Colorado to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 19, 2024.

The most flights from USCO to WAS are scheduled on a Thursday (29 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated December 19, 2024.
Peruse reviews from past customers who have flown with Southwest, Frontier and United Airlines from Colorado to Washington, D.C. to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,836 reviews
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,551 reviews
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,600 reviews
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,274 reviews
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,048 reviews
Southwest
8.1
Very good
4,836 reviews

Entertainment

7.7

Food

7.2

Crew

8.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Colorado to Washington, D.C. one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $77. Users have also found prices from $89 and $108 on United Airlines and JetBlue, respectively.

  • What are the most popular routes from Colorado to Washington, D.C.?

    Most travelers choose Denver Intl - Washington, D.C. Dulles Intl, Denver Intl - Washington, D.C. Reagan-National or Denver Intl - Baltimore/Washington when deciding on the best route from Colorado to Washington, D.C..

  • What are the most reliable airlines from Colorado to Washington, D.C.?

    Before booking your flight to Washington, D.C. from Colorado, check out the most reliable airlines to get you to your destination on time: Ethiopian Air (91%), Copa Airlines (89%), United Airlines( 89%).

  • What are the cheapest flights from Colorado to Washington, D.C.?

    While on average a flight from Colorado to Washington, D.C. is generally $961, our data shows the cheapest flight currently is $129. When looking at the most popular route, (Denver Intl - Washington, D.C. Dulles Intl), you can expect to pay $177 for that flight.

  • Can I find deals for flights from Colorado to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Colorado to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Washington, D.C..

  • Can I find deals for business class flights from Colorado to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Colorado to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Colorado to Washington, D.C. (average of $309). Flying from Colorado to Washington, D.C. in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
Seattle to Dulles Intl flights
Orlando to Dulles Intl flights
Atlanta to Dulles Intl flights
O'Hare Intl to Dulles Intl flights
Boston to Reagan-National flights
O'Hare Intl to Reagan-National flights
Boston to Dulles Intl flights
San Francisco to Reagan-National flights
San Francisco to Dulles Intl flights
Orlando to Reagan-National flights
Minneapolis to Reagan-National flights
Atlanta to Reagan-National flights
Seattle to Reagan-National flights
Hobby to Dulles Intl flights
Denver to Dulles Intl flights
Hobby to Reagan-National flights
Miami to Dulles Intl flights
Tampa to Dulles Intl flights
Miami to Reagan-National flights
Denver to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
Minneapolis to Dulles Intl flights
Austin to Dulles Intl flights
Fort Lauderdale to Dulles Intl flights
Fort Lauderdale to Reagan-National flights
Tampa to Reagan-National flights
Newark to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights
Midway to Dulles Intl flights
LaGuardia to Dulles Intl flights
Ontario to Dulles Intl flights
Salt Lake City to Dulles Intl flights
LaGuardia to Reagan-National flights
San Diego to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Newark to Reagan-National flights
Detroit to Reagan-National flights
Charlotte to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
Sky Harbor Intl to Dulles Intl flights
Salt Lake City to Reagan-National flights
Sacramento to Dulles Intl flights
Ontario to Reagan-National flights
Austin to Reagan-National flights
Midway to Reagan-National flights
Detroit to Dulles Intl flights

Top 5 airlines flying from Colorado to Washington, D.C.

Discover the top 5 airlines that operate flights from Colorado to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$223FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$368FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$166Average$522FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$174Average$566FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$199Average$449FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.