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District of Columbia

$100+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BWI
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$162
(Frontier)

One-way from

$100
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$240

Good round-trip deal

$192 or less

Good one-way deal

$134 or less
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 ($20 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 July 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 julio 30, 2025.

This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/126:38 amDEN - DCA
Nonstop3h 26mFrontier
mié. 8/271:00 pmDCA - DEN
Nonstop3h 59mFrontier
Deal found 7/29$162
This Southwest deal was found by Cheapflights users on 7/28. 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.
sáb. 8/305:30 pmDEN - IAD
Nonstop3h 20mSouthwest
sáb. 9/67:00 amIAD - DEN
Nonstop3h 40mSouthwest
Deal found 7/28$177
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
mar. 8/1912:45 pmDEN - IAD
1 stop6h 49mFrontier
sáb. 8/238:00 amIAD - DEN
1 stop7h 57mFrontier
Deal found 7/29$196
This American Airlines deal was found by Cheapflights users on 7/30. 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.
sáb. 9/202:17 pmDEN - DCA
1 stop7h 06mAmerican Airlines
mar. 9/235:24 pmDCA - DEN
1 stop6h 49mAmerican Airlines
Deal found 7/30$197
This American Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 9/177:16 amDEN - IAD
2 stops9h 35mAmerican Airlines
sáb. 9/206:25 amIAD - DEN
1 stop7h 26mAmerican Airlines
Deal found 7/30$202
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/611:30 amDEN - DCA
1 stop4h 45mSouthwest
dom. 11/96:00 amDCA - DEN
1 stop5h 25mSouthwest
Deal found 7/27$214
This Delta deal was found by Cheapflights users on 7/28. 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.
vie. 10/312:59 amDEN - IAD
1 stop8h 11mDelta
lun. 10/65:52 pmIAD - DEN
1 stop8h 07mDelta
Deal found 7/28$237
This American Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 8/286:27 amCOS - IAD
1 stop8h 47mAmerican Airlines
dom. 8/316:27 amIAD - COS
1 stop7h 09mAmerican Airlines
Deal found 7/29$258
This American Airlines deal was found by Cheapflights users on 7/30. 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.
jue. 8/2810:54 amCOS - DCA
1 stop6h 00mAmerican Airlines
dom. 8/315:00 amDCA - COS
1 stop8h 36mAmerican Airlines
Deal found 7/30$258
This Delta deal was found by Cheapflights users on 7/30. 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.
jue. 8/281:10 pmCOS - DCA
1 stop5h 37mDelta
dom. 8/319:59 amDCA - COS
2 stops12h 42mDelta
Deal found 7/30$267
This American Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 9/118:29 amDRO - DCA
1 stop5h 50mAmerican Airlines
sáb. 9/136:45 amDCA - DRO
1 stop6h 13mAmerican Airlines
Deal found 7/29$278
This American Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 9/118:29 amDRO - IAD
1 stop6h 21mAmerican Airlines
sáb. 9/136:25 amIAD - DRO
1 stop6h 33mAmerican Airlines
Deal found 7/29$278

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 julio 30, 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

mar. 8/12

6:38 am-12:04 pm

Nonstop3h 26m

Washington, D.C. Reagan-National

mié. 8/27

1:00 pm-2:59 pm

Nonstop3h 59m

$162

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

sáb. 8/30

5:30 pm-10:50 pm

Nonstop3h 20m

Washington, D.C. Dulles Intl

sáb. 9/6

7:00 am-8:40 am

Nonstop3h 40m

$177

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mar. 8/19

12:45 pm-9:34 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

sáb. 8/23

8:00 am-1:57 pm

1 stop7h 57m

$196

DenverWashington, D.C.

DEN - DCA

DENDCA

Denver Intl

sáb. 9/20

2:17 pm-11:23 pm

1 stop7h 06m

Washington, D.C. Reagan-National

mar. 9/23

5:24 pm-10:13 pm

1 stop6h 49m

$197

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mié. 9/17

7:16 am-6:51 pm

2 stops9h 35m

Washington, D.C. Dulles Intl

sáb. 9/20

6:25 am-11:51 am

1 stop7h 26m

$202

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

mié. 8/20

11:59 pm-5:22 am

Nonstop3h 23m

Washington, D.C. Dulles Intl

sáb. 8/23

10:14 pm-11:59 pm

Nonstop3h 45m

$217

DenverWashington, D.C.

DEN - IAD

DENIAD

Denver Intl

vie. 10/3

12:59 am-11:10 am

1 stop8h 11m

Washington, D.C. Dulles Intl

mié. 10/8

7:10 pm-11:04 pm

1 stop5h 54m

$237

Colorado SpringsWashington, D.C.

COS - IAD

COSIAD

Colorado Springs

jue. 8/28

6:27 am-5:14 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

dom. 8/31

6:27 am-11:36 am

1 stop7h 09m

$258

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

jue. 8/28

10:54 am-6:54 pm

1 stop6h 00m

Washington, D.C. Reagan-National

dom. 8/31

5:00 am-11:36 am

1 stop8h 36m

$258

Colorado SpringsWashington, D.C.

COS - DCA

COSDCA

Colorado Springs

jue. 8/28

1:10 pm-8:47 pm

1 stop5h 37m

Washington, D.C. Reagan-National

dom. 8/31

9:59 am-8:41 pm

2 stops12h 42m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 59 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 $241). Flying from Colorado to District of Columbia in March is currently the most expensive (average of $290). 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 julio 30, 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 julio 30, 2025.

The most flights from USCO to USDC are scheduled on a Monday (20 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

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 julio 30, 2025.
See what other customers who have flown with Southwest, Delta, and Hawaiian Airlines from Colorado to District of Columbia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Hawaiian Airlines
7.8
Good
2,611 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • How popular is this Colorado to District of Columbia flight route?

    The Colorado to District of Columbia flight path was viewed by 30 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Colorado to District of Columbia one-way?

    $100 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $100 and $104, 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 $241). Flying from Colorado to District of Columbia in March is currently the most expensive (average of $290). 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.

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$99Average$231FlexibilityNo cancel feeOn-time62%
DeltaCheapest$144Average$342FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$166Average$448FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$172Average$521FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$190Average$425FlexibilityNo cancel feeOn-time63%

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