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$106+ Cheap flights from Dulles Intl (IAD) to Colorado Springs (COS)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — COS
Dec 25 — Jan 11
Thu 12/25
Thu 1/1
1 adult, Economy
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Cheap flight deals from Dulles Intl to Colorado Springs

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Colorado Springs (COS). 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 November 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$291
(Delta)

One-way from

$106
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$527
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Colorado Springs flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Colorado Springs flights.
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From Washington, D.C. Dulles Intl to Colorado Springs
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One-way flight from Washington, D.C. Dulles Intl to Colorado Springs
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Highest demand for flights based on searches. 16% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Dulles Intl to Colorado Springs

Cheapest flights from Dulles Intl to Colorado Springs
Explore the most affordable flight options available from Dulles Intl to Colorado Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 25, 2025.

This American Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/156:00 amIAD - COS
1 stop7h 46mAmerican Airlines
Thu 12/256:00 amCOS - IAD
1 stop8h 16mAmerican Airlines
Deal found 11/24$327
This Delta deal was found by Cheapflights users on 11/22. 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.
Sat 12/136:55 amIAD - COS
1 stop7h 41mDelta
Tue 12/161:42 pmCOS - IAD
1 stop8h 30mDelta
Deal found 11/22$330
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/245:20 pmIAD - COS
1 stop5h 51mUnited Airlines
Mon 12/298:50 pmCOS - IAD
1 stop6h 29mUnited Airlines
Deal found 11/23$346
This Delta deal was found by Cheapflights users on 11/24. 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 12/157:01 amIAD - COS
1 stop7h 35mDelta
Mon 12/156:00 pmCOS - IAD
2 stops13h 11mDelta
Deal found 11/24$385
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/175:25 pmIAD - COS
1 stop6h 34mUnited Airlines
Sat 12/208:50 pmCOS - IAD
1 stop6h 29mUnited Airlines
Deal found 11/24$391
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/245:20 pmIAD - COS
1 stop5h 51mUnited Airlines
Thu 1/15:45 amCOS - IAD
1 stop5h 31mUnited Airlines
Deal found 11/23$393
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Thu 12/186:20 amIAD - COS
1 stop6h 32mUnited Airlines
Mon 12/298:50 pmCOS - IAD
1 stop6h 29mUnited Airlines
Deal found 11/23$399
This American Airlines deal was found by Cheapflights users on 11/25. 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 12/95:29 pmIAD - COS
2 stops20h 33mAmerican Airlines
Tue 12/1612:45 pmCOS - IAD
1 stop8h 14mAmerican Airlines
Deal found 11/25$405
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Sun 12/215:20 pmIAD - COS
1 stop6h 46mUnited Airlines
Wed 12/315:45 amCOS - IAD
1 stop5h 31mUnited Airlines
Deal found 11/23$406
This United Airlines deal was found by Cheapflights users on 11/23. 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 12/245:20 pmIAD - COS
1 stop5h 51mUnited Airlines
Wed 12/315:45 amCOS - IAD
1 stop5h 31mUnited Airlines
Deal found 11/23$407

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Colorado Springs 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 November 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Colorado Springs that are best for you.

Fly from

Dulles Intl

Fly to

Colorado Springs

Route

Depart

Return

Price

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Mon 1/12

6:20 am-12:22 pm

1 stop8h 02m

Colorado Springs

Wed 1/14

1:21 pm-11:37 pm

1 stop8h 16m

$291

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Tue 1/20

7:15 am-12:23 pm

1 stop7h 08m

Colorado Springs

Thu 1/22

12:00 pm-12:24 am

2 stops10h 24m

$296

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Wed 1/21

2:24 pm-9:06 pm

1 stop8h 42m

Colorado Springs

Sun 1/25

5:50 am-1:17 pm

1 stop5h 27m

$339

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Fri 1/9

5:15 pm-10:06 pm

1 stop6h 51m

Colorado Springs

Mon 1/12

3:30 pm-11:22 pm

1 stop5h 52m

$339

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Tue 2/3

6:00 am-12:23 pm

1 stop8h 23m

Colorado Springs

Fri 2/6

7:59 am-11:06 pm

2 stops13h 07m

$344

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Wed 12/24

5:20 pm-9:11 pm

1 stop5h 51m

Colorado Springs

Mon 12/29

8:50 pm-5:19 am

1 stop6h 29m

$346

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Fri 1/30

9:05 am-3:55 pm

1 stop8h 50m

Colorado Springs

Sun 2/1

5:10 am-5:00 pm

1 stop9h 50m

$387

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Fri 1/30

7:01 am-5:41 pm

2 stops12h 40m

Colorado Springs

Sun 2/1

6:12 am-4:31 pm

1 stop8h 19m

$392

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Wed 12/24

5:20 pm-9:11 pm

1 stop5h 51m

Colorado Springs

Wed 12/31

5:45 am-1:16 pm

1 stop5h 31m

$393

Washington, D.C.Colorado Springs

IAD - COS

IADCOS

Washington, D.C. Dulles Intl

Fri 1/16

5:30 am-11:20 am

1 stop7h 50m

Colorado Springs

Mon 1/19

5:10 am-5:00 pm

1 stop9h 50m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 22 results
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Compare providers for flights from Dulles Intl to Colorado Springs

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Colorado Springs in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Colorado Springs flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Colorado Springs flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Colorado Springs flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Colorado Springs flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Colorado Springs flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Colorado Springs

Have a flexible travel schedule? Discover the best time to fly to Colorado Springs from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Colorado Springs

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colorado Springs (average of $156). Flying from Washington, D.C. Dulles Intl Airport to Colorado Springs in April is currently the most expensive (average of $243). 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 IAD to COS?

Find hourly flight availability from Dulles Intl to Colorado Springs. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 25, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 28% on flights from Washington, D.C. Dulles Intl Airport to Colorado Springs by exploring options for tickets in the afternoon.

Reviews of airlines servicing Colorado Springs

Get insights into the airlines that provide service to Colorado Springs. 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 Colorado Springs. Reviews last updated November 25, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Washington, D.C. Dulles Intl Airport to Colorado Springs to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,999 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,046 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,038 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • What airport do you fly into for flights to Colorado Springs from Washington, D.C. Dulles Intl?

    Located just 6.7 mi from the city center, Colorado Springs is the airport most travelers will use when flying to Colorado Springs from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Colorado Springs (COS) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 4 different airlines.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Colorado Springs?

    Delta and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Colorado Springs in just under 8h 02m. Your travel time can differ by up to 40m. Washington, D.C. Dulles Intl Airport and Colorado Springs are separated by a distance of 1459 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Colorado Springs round-trip?

    According to our current data, American Airlines ($160), Delta ($236), and United Airlines ($236) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Colorado Springs. American Airlines is currently priced 62% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $146 on Delta. Other airlines that offer cheap prices include United Airlines from $171 and American Airlines from $176 one-way.

  • Can I find deals for flights from Dulles Intl to Colorado Springs that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Colorado Springs flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Colorado Springs?

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

  • Can I find deals for business class flights from Dulles Intl to Colorado Springs?

    Yes. Cheapflights offers flight deals from Dulles Intl to Colorado Springs 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 Washington, D.C. Dulles Intl Airport to Colorado Springs?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colorado Springs (average of $156). Flying from Washington, D.C. Dulles Intl Airport to Colorado Springs in April is currently the most expensive (average of $243). 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 Dulles Intl to Colorado Springs

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Dulles Intl to Colorado Springs

Discover the top 4 airlines that operate flights from Dulles Intl to Colorado Springs. 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 November 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$160Average$316FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$288FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$432FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$280Average$366FlexibilityNo cancel feeOn-time63%

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