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Dulles Intl

$274+ Cheap flights from Columbia, MO (COU) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
COU — IAD
Mar 28 — Apr 41
Sat 3/28
Sat 4/4
1 adult, Economy
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Cheap flight deals from Columbia to Dulles Intl

Cheapest flights from Columbia to Dulles Intl
Explore the most affordable flight options available from Columbia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 26, 2026.

This United Airlines deal was found by Cheapflights users on 2/26. 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.
Sat 4/1811:30 am
COU
-
IAD
1 stop4h 58m
United Airlines
Tue 4/216:15 am
IAD
-
COU
1 stop5h 40m
United Airlines
Deal found 2/26$274
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Tue 4/2811:30 am
COU
-
IAD
1 stop4h 58m
United Airlines
Sat 5/26:15 am
IAD
-
COU
1 stop5h 40m
United Airlines
Deal found 2/23$328
This United Airlines deal was found by Cheapflights users on 2/24. 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.
Thu 3/511:15 am
COU
-
IAD
1 stop5h 15m
United Airlines
Sat 3/78:32 am
IAD
-
COU
1 stop6h 34m
United Airlines
Deal found 2/24$347
This American Airlines deal was found by Cheapflights users on 2/26. 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 4/1810:16 am
COU
-
IAD
2 stops8h 17m
American Airlines
Tue 4/217:16 am
IAD
-
COU
2 stops9h 42m
American Airlines
Deal found 2/26$399
This American Airlines deal was found by Cheapflights users on 2/25. 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.
Wed 3/186:00 am
COU
-
IAD
2 stops13h 30m
American Airlines
Mon 3/239:19 am
IAD
-
COU
2 stops12h 00m
American Airlines
Deal found 2/25$416
This United Airlines deal was found by Cheapflights users on 2/24. 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.
Tue 3/102:41 pm
COU
-
IAD
1 stop4h 56m
United Airlines
Fri 3/1310:22 pm
IAD
-
COU
2 stops13h 11m
United Airlines
Deal found 2/24$452
This United Airlines deal was found by Cheapflights users on 2/24. 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 3/1811:15 am
COU
-
IAD
1 stop5h 15m
United Airlines
Fri 3/206:15 am
IAD
-
COU
1 stop5h 18m
United Airlines
Deal found 2/24$486

Find flight deals from Columbia to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Columbia (COU) to Dulles Intl (IAD). 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 February 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(United Airlines)
Provider with most accurate pricing for Columbia Regional-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Columbia Regional-Washington, D.C. Dulles Intl flights.
Search Deals
From Columbia Regional to Washington, D.C. Dulles Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbia to Dulles Intl 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 26, 2026.
Use the filters below to find and compare flights from Columbia to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Tue 4/28

3:23 pm-9:04 pm

1 stop4h 41m

Washington, D.C. Dulles Intl

Sat 5/2

10:08 am-2:32 pm

1 stop5h 24m

$328

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Tue 3/10

8:00 am-8:57 pm

2 stops11h 57m

Washington, D.C. Dulles Intl

Sat 3/14

6:15 am-10:33 am

1 stop5h 18m

$452

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Wed 3/18

11:15 am-5:30 pm

1 stop5h 15m

Washington, D.C. Dulles Intl

Fri 3/20

6:15 am-10:33 am

1 stop5h 18m

$486

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Tue 4/7

5:00 am-11:48 am

1 stop5h 48m

Washington, D.C. Dulles Intl

Thu 4/9

6:15 am-10:55 am

1 stop5h 40m

$486

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Fri 3/20

2:41 pm-7:26 am

2 stops15h 45m

Washington, D.C. Dulles Intl

Mon 3/23

6:15 am-10:33 am

1 stop5h 18m

$582

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sun 4/12

8:00 am-11:48 am

1 stop26h 48m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Sorted by cheapest first

Compare providers for flights from Columbia to Dulles Intl

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 Columbia to Dulles Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Columbia, Missouri-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Columbia, Missouri-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Columbia, Missouri-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Columbia, Missouri-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Columbia, Missouri-Washington, D.C. Dulles Intl Airport 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 Columbia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Columbia 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.

Related info for your journey

Find useful and relevant information for your journey from Columbia to Dulles Intl. 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 from for flights from Columbia to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Columbia, you will be flying from Columbia Regional, which is the city’s only airport. Columbia Regional (COU) is located 11.1 mi from the center of Columbia. There are 0 flights from Columbia Regional to Washington, D.C. Dulles Intl per day from 0 different airlines.

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

    United Airlines can get you from Columbia, Missouri to Washington, D.C. Dulles Intl Airport in just under 4h 41m. Your travel time can differ by up to . Columbia, Missouri and Washington, D.C. Dulles Intl Airport are separated by a distance of 793 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Columbia to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Fredericksburg
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Manassas
Bowie
Largo
Clinton
Towson

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