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District of Columbia

$96+ Cheap flights from Colorado to District of Columbia

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Colorado to District of Columbia

Keep the following information in mind while searching for Colorado to District of Columbia flight deals. Data was last updated April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$153
(Frontier)

One-way from

$96
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$258

Good round-trip deal

$221 or less

Good one-way deal

$129 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 District of Columbia
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One-way flight from Colorado to District of Columbia
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Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Colorado to District of Columbia.
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Price to beat on a one-way flight from Colorado to District of Columbia.
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Find flight deals from Colorado to District of Columbia

Cheapest flights from Colorado to District of Columbia
Explore the most affordable flight options available from Colorado to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Frontier deal was found by Cheapflights users on 4/28. 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.
Wed 6/114:28 pmDEN - DCA
Nonstop3h 31mFrontier
Sun 6/157:00 amDCA - DEN
Nonstop4h 02mFrontier
Deal found 4/28$153
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/116:00 amDEN - IAD
Nonstop3h 26mUnited Airlines
Wed 6/1110:19 pmIAD - DEN
Nonstop3h 56mUnited Airlines
Deal found 4/29$217
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Tue 6/107:20 amDEN - IAD
1 stop8h 15mAmerican Airlines
Tue 6/106:43 pmIAD - DEN
1 stop7h 01mAmerican Airlines
Deal found 4/27$231
This Delta deal was found by Cheapflights users on 4/28. 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 8/710:54 amCOS - IAD
1 stop5h 30mDelta
Wed 8/136:15 amIAD - COS
1 stop6h 29mDelta
Deal found 4/28$237
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/3012:55 amDEN - DCA
1 stop5h 40mDelta
Tue 6/36:59 amDCA - DEN
1 stop6h 02mDelta
Deal found 4/29$237
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/2512:06 pmCOS - DCA
1 stop6h 50mUnited Airlines
Sun 6/297:25 amDCA - COS
1 stop5h 43mUnited Airlines
Deal found 4/29$237
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:54 pmDEN - IAD
1 stop14h 59mSun Country Air
Sun 5/2512:49 pmIAD - DEN
1 stop6h 38mSun Country Air
Deal found 4/29$240
This JetBlue deal was found by Cheapflights users on 4/28. 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.
Mon 5/122:38 pmDEN - DCA
1 stop6h 20mJetBlue
Tue 5/136:09 amDCA - DEN
1 stop9h 34mJetBlue
Deal found 4/28$241
This Delta deal was found by Cheapflights users on 4/29. 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 6/2510:57 amCOS - DCA
2 stops10h 00mDelta
Sun 6/293:59 pmDCA - COS
1 stop6h 58mDelta
Deal found 4/29$242
This Southwest deal was found by Cheapflights users on 4/28. 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.
Sat 5/245:50 pmDEN - IAD
Nonstop3h 25mSouthwest
Sat 5/315:05 amIAD - DEN
Nonstop3h 50mSouthwest
Deal found 4/28$243
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 7/44:10 pmDEN - IAD
1 stop5h 09mDelta
Wed 7/307:04 pmIAD - DEN
1 stop6h 24mDelta
Deal found 4/28$245
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 5/243:49 pmDEN - DCA
1 stop5h 29mAmerican Airlines
Sat 5/317:07 pmDCA - DEN
1 stop6h 52mAmerican Airlines
Deal found 4/29$245

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado to District of Columbia 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 April 29, 2025.
Use the filters below to find and compare flights from Colorado to District of Columbia that are best for you.

Fly from

Colorado

Fly to

District of Columbia

Route

Depart

Return

Price

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Wed 6/11

4:28 pm-9:59 pm

Nonstop3h 31m

Washington, D.C. Reagan-National

Sun 6/15

7:00 am-9:02 am

Nonstop4h 02m

$153

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 6/10

8:01 am-1:27 pm

Nonstop3h 26m

Washington, D.C. Dulles Intl

Tue 6/10

7:59 pm-9:55 pm

Nonstop3h 56m

$217

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Tue 6/10

7:20 am-5:35 pm

1 stop8h 15m

Washington, D.C. Dulles Intl

Tue 6/10

6:43 pm-11:44 pm

1 stop7h 01m

$231

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Tue 6/10

11:59 pm-9:29 am

1 stop7h 30m

Washington, D.C. Reagan-National

Wed 6/11

12:31 pm-4:44 pm

1 stop6h 13m

$231

Colorado SpringsWashington, D.C.

COS - IAD

COSIAD

Colorado Springs

Wed 6/25

6:00 am-4:33 pm

1 stop8h 33m

Washington, D.C. Dulles Intl

Mon 6/30

6:20 am-10:02 am

1 stop5h 42m

$237

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Fri 5/30

12:55 am-8:35 am

1 stop5h 40m

Washington, D.C. Reagan-National

Tue 6/3

6:59 am-11:01 am

1 stop6h 02m

$237

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Wed 6/25

12:06 pm-10:15 pm

1 stop8h 09m

Washington, D.C. Reagan-National

Sun 6/29

7:25 am-11:08 am

1 stop5h 43m

$237

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

Thu 5/22

6:54 pm-11:53 am

1 stop14h 59m

Washington, D.C. Dulles Intl

Sun 5/25

12:49 pm-5:27 pm

1 stop6h 38m

$240

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

Mon 5/12

2:38 pm-10:58 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Tue 5/13

6:09 am-1:43 pm

1 stop9h 34m

$241

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

Wed 6/25

6:00 am-6:59 pm

2 stops10h 59m

Washington, D.C. Reagan-National

Mon 6/30

6:10 am-10:02 am

1 stop5h 52m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results
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Best time to book a flight from Colorado to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Cheapflights Insights

Everything you need to know about your flight from Colorado to District of Columbia

What is the cheapest month to book a flight from Colorado to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Colorado to District of Columbia (average of $309). Flying from Colorado to District of Columbia in June is currently the most expensive (average of $373). 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 DC?

Find hourly flight availability from Colorado to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

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

Weekly flight availability from Colorado to District of Columbia

Explore weekly flight availability from Colorado to District of Columbia. 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 April 29, 2025.

The most flights from USCO to USDC are scheduled on a Wednesday (25 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (19 on average).

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia 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 District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated April 29, 2025.
Read through reviews of airlines operating flights from Colorado to District of Columbia, such as Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Colorado to District of Columbia. 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 District of Columbia one-way?

    $96 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Allegiant Air, with prices starting from $109 and $110, respectively.

  • Can I find deals for flights from Colorado to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Colorado to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to District of Columbia?

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

  • Can I find deals for business class flights from Colorado to District of Columbia?

    Yes. Cheapflights offers flight deals from Colorado to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Colorado to District of Columbia (average of $309). Flying from Colorado to District of Columbia in June is currently the most expensive (average of $373). 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

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Alternative routes for Colorado to District of Columbia

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 District of Columbia

Discover the top 5 airlines that operate flights from Colorado to District of Columbia. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$221FlexibilityNo cancel feeOn-time62%
DeltaCheapest$144Average$340FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$166Average$478FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$172Average$538FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$218Average$429FlexibilityNo cancel feeOn-time63%

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