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Dulles Intl

$201+ Cheap flights from Columbia, MO (COU) to Dulles Intl (IAD)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
COU — IAD
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
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 July 27, 2026.

This United Airlines deal was found by Cheapflights users on 7/21. 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 9/93:12 pm
COU
-
IAD
1 stop5h 08m
United Airlines
Sun 9/136:13 am
IAD
-
COU
1 stop5h 26m
United Airlines
Deal found 7/21$308
This American Airlines deal was found by Cheapflights users on 7/21. 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 9/95:44 am
COU
-
IAD
2 stops10h 47m
American Airlines
Sun 9/137:10 pm
IAD
-
COU
1 stop4h 24m
American Airlines
Deal found 7/21$349
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 10/107:08 am
COU
-
IAD
1 stop4h 43m
American Airlines
Thu 10/156:15 am
IAD
-
COU
2 stops12h 39m
American Airlines
Deal found 7/25$359
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Mon 8/1712:43 pm
COU
-
IAD
2 stops9h 12m
American Airlines
Sun 8/236:25 pm
IAD
-
COU
1 stop5h 34m
American Airlines
Deal found 7/26$360
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:19 pm
COU
-
IAD
1 stop4h 52m
United Airlines
Mon 10/263:34 pm
IAD
-
COU
1 stop6h 59m
United Airlines
Deal found 7/22$363
This United Airlines deal was found by Cheapflights users on 7/21. 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 9/93:12 pm
COU
-
IAD
1 stop5h 08m
United Airlines
Sat 9/1210:41 am
IAD
-
COU
1 stop4h 49m
United Airlines
Deal found 7/21$388
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Mon 8/176:15 am
COU
-
IAD
1 stop6h 40m
United Airlines
Sun 8/236:15 am
IAD
-
COU
1 stop5h 01m
United Airlines
Deal found 7/26$389
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:30 am
COU
-
IAD
1 stop4h 18m
American Airlines
Sat 8/87:57 am
IAD
-
COU
2 stops11h 00m
American Airlines
Deal found 7/22$402
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 7/248:00 am
COU
-
IAD
1 stop5h 12m
United Airlines
Sun 7/266:10 am
IAD
-
COU
1 stop5h 03m
United Airlines
Deal found 7/24$428
This deal was found by Cheapflights users on 7/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:49 am
COU
-
IAD
1 stop4h 41m
United Airlines
Fri 8/146:15 am
IAD
-
COU
1 stop4h 59m
United Airlines
Deal found 7/21$433

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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$308
(United Airlines)

One-way from

$201
(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.
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From Columbia Regional to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Columbia Regional to Washington, D.C. Dulles Intl
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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 July 27, 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

Cheapest round-trip

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Wed 9/9

3:12 pm-9:20 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Sun 9/13

6:13 am-10:39 am

1 stop5h 26m

$308

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sat 10/10

3:19 pm-9:11 pm

1 stop4h 52m

Washington, D.C. Dulles Intl

Thu 10/15

6:10 am-10:39 am

1 stop5h 29m

$308
Quickest round-trip

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Wed 9/9

3:12 pm-9:20 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Sat 9/12

10:41 am-2:30 pm

1 stop4h 49m

$388

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Tue 9/22

6:15 am-1:55 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

Fri 9/25

10:40 pm-10:39 am

2 stops12h 59m

$509

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sat 10/24

6:15 am-1:59 pm

1 stop6h 44m

Washington, D.C. Dulles Intl

Mon 10/26

10:22 pm-10:44 am

2 stops13h 22m

$511

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Thu 9/17

6:15 am-11:49 am

1 stop4h 34m

Washington, D.C. Dulles Intl

Fri 9/18

10:09 pm-10:38 am

2 stops13h 29m

$528

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Sat 10/24

10:40 am-9:16 pm

2 stops9h 36m

Washington, D.C. Dulles Intl

Mon 10/26

6:15 am-5:54 pm

2 stops12h 39m

$534
Cheapest one-way

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Wed 9/9

3:12 pm-9:20 pm

1 stop5h 08m

$201

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Wed 9/9

5:44 am-5:31 pm

2 stops10h 47m

$207
Quickest one-way

ColumbiaWashington, D.C.

COU - IAD

COUIAD

Columbia Regional

Mon 9/7

6:15 am-11:52 am

1 stop4h 37m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

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 July.
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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated July 27, 2026.
See what other customers who have flown with United Airlines from Columbia to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,041 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,041 reviews
United Airlines
7.4
Good
10,041 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 1 airline.

  • 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 5h 08m. 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.

  • What is the cheapest airline to fly from Columbia, Missouri to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $212.

  • 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
Tysons
Arlington
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Columbia to Dulles Intl

Discover the top airline that operate flights from Columbia to Dulles Intl. 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$212Average$325FlexibilityNo cancel feeOn-time69%

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