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Washington, D.C.

$39+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — WAS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Colorado to Washington, D.C.

Keep the following information in mind while searching for Colorado to Washington, D.C. flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$113
(Frontier)

One-way from

$39
(Frontier)

Popular in

December

Cheapest in

April

Average price

$237

Good round-trip deal

$140 or less

Good one-way deal

$98 or less
Provider with most accurate pricing for Denver Intl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Washington, D.C. (WAS) flights.
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From Colorado to Washington, D.C. (WAS)
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One-way flight from Colorado to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 8% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Colorado to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Colorado to Washington, D.C. (WAS).
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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 February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/19. 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 4/16:45 amDEN - DCA
Nonstop3h 19mFrontier
Sun 4/67:00 amDCA - DEN
Nonstop4h 09mFrontier
Deal found 2/19$113
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/46:00 amDEN - BWI
Nonstop3h 27mFrontier
Mon 4/712:17 pmBWI - DEN
Nonstop4h 13mFrontier
Deal found 2/19$115
This Mytrip deal was found by Cheapflights users on 2/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1611:57 pmDEN - IAD
1 stop6h 39mFrontier
Mon 4/2112:58 pmIAD - DEN
1 stop21h 45mFrontier
Deal found 2/18$116
This Booking.com deal was found by Cheapflights users on 2/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/116:00 amDEN - BWI
Nonstop3h 27mMultiple Airlines
Mon 4/1412:38 pmBWI - DEN
1 stop6h 31mMultiple Airlines
Deal found 2/20$193
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:55 pmDEN - IAD
1 stop15h 39mMultiple Airlines
Wed 3/268:19 pmIAD - DEN
1 stop14h 43mMultiple Airlines
Deal found 2/19$213
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:45 amDEN - IAD
Nonstop3h 18mUnited Airlines
Tue 4/110:20 pmIAD - DEN
Nonstop4h 05mUnited Airlines
Deal found 2/19$217
This JetBlue deal was found by Cheapflights users on 2/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2511:59 pmDEN - DCA
1 stop6h 51mJetBlue
Tue 4/13:45 pmDCA - DEN
1 stop7h 55mJetBlue
Deal found 2/19$217
This Southwest deal was found by Cheapflights users on 2/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/256:25 pmDEN - BWI
Nonstop3h 15mSouthwest
Tue 4/16:50 pmBWI - DEN
Nonstop4h 05mSouthwest
Deal found 2/19$229
This Delta deal was found by Cheapflights users on 2/20. 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.
Tue 3/254:00 pmDEN - IAD
1 stop6h 31mDelta
Wed 4/27:35 amIAD - DEN
1 stop9h 45mDelta
Deal found 2/20$237
This Delta deal was found by Cheapflights users on 2/20. 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.
Mon 3/2412:55 amDEN - DCA
1 stop8h 26mDelta
Tue 4/16:00 amDCA - DEN
1 stop5h 44mDelta
Deal found 2/20$237
This Delta deal was found by Cheapflights users on 2/20. 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.
Tue 4/812:55 amDEN - BWI
1 stop8h 00mDelta
Tue 4/1510:19 amBWI - DEN
1 stop6h 11mDelta
Deal found 2/20$237
This Travelocity deal was found by Cheapflights users on 2/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2511:44 amDEN - DCA
Nonstop3h 15mMultiple Airlines
Tue 4/18:00 amDCA - DEN
1 stop10h 40mMultiple Airlines
Deal found 2/19$245

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 February 20, 2025.

Fly from

Colorado

Fly to

Washington, D.C.

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 4/1

6:45 am-12:04 pm

Nonstop3h 19m

Washington, D.C. Reagan-National

Sun 4/6

7:00 am-9:09 am

Nonstop4h 09m

$113

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Fri 4/4

6:00 am-11:27 am

Nonstop3h 27m

Baltimore/Washington

Mon 4/7

12:17 pm-2:30 pm

Nonstop4h 13m

$115

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 4/16

11:57 pm-8:36 am

1 stop6h 39m

Washington, D.C. Dulles Intl

Mon 4/21

12:58 pm-8:43 am

1 stop21h 45m

$116

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Fri 4/11

6:00 am-11:27 am

Nonstop3h 27m

Baltimore/Washington

Mon 4/14

12:38 pm-5:09 pm

1 stop6h 31m

$193

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 3/20

6:55 pm-12:34 pm

1 stop15h 39m

Washington, D.C. Dulles Intl

Wed 3/26

8:19 pm-9:02 am

1 stop14h 43m

$213

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Wed 3/26

7:45 am-1:03 pm

Nonstop3h 18m

Washington, D.C. Dulles Intl

Tue 4/1

10:20 pm-12:25 am

Nonstop4h 05m

$217

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 3/25

11:59 pm-8:50 am

1 stop6h 51m

Washington, D.C. Reagan-National

Tue 4/1

3:45 pm-9:40 pm

1 stop7h 55m

$217

DenverBaltimore

DEN - BWI

DENBWI

Denver Intl

Tue 3/25

6:25 pm-11:40 pm

Nonstop3h 15m

Baltimore/Washington

Tue 4/1

6:50 pm-8:55 pm

Nonstop4h 05m

$229

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 3/25

4:00 pm-12:31 am

1 stop6h 31m

Washington, D.C. Dulles Intl

Wed 4/2

7:35 am-3:20 pm

1 stop9h 45m

$237

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 3/24

12:55 am-9:08 am

1 stop6h 13m

Washington, D.C. Reagan-National

Tue 4/1

12:17 pm-5:16 pm

1 stop6h 59m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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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 February 20, 2025.

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 February 20, 2025.

The most flights from USCO to WAS are scheduled on a Thursday (29 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (15 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta 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
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $39. Users have also found prices from $101 and $109 on Sun Country Air and United Airlines, 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: Lufthansa (88%), United Airlines (86%), Avianca( 85%).

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

    While on average a flight from Colorado to Washington, D.C. is generally $1,210, our data shows the cheapest flight currently is $128. When looking at the most popular route, (Denver Intl - Washington, D.C. Dulles Intl), you can expect to pay $184 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

Traveling to a place near Colorado?

Book flights to Colorado if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Springfield
Rockville
Tysons
Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill
Gettysburg

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Alternative routes for Colorado to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$79Average$224FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$166Average$514FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$172Average$540FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$214Average$452FlexibilityNo cancel feeOn-time63%
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