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Dulles Intl

$68+ Cheap flights from Columbus (CMH) 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — IAD
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Columbus to Washington, D.C. Dulles Intl are usually found in June or January, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Columbus to Dulles Intl

Cheapest flights from Columbus to Dulles Intl
Explore the most affordable flight options available from Columbus to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This United Airlines deal was found by Cheapflights users on 12/18. 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 12/316:05 amCMH - IAD
Nonstop1h 30mUnited Airlines
Thu 1/110:09 pmIAD - CMH
Nonstop1h 35mUnited Airlines
Deal found 12/18$249
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/317:45 pmCMH - IAD
Nonstop1h 25mUnited Airlines
Mon 1/55:25 pmIAD - CMH
Nonstop1h 35mUnited Airlines
Deal found 12/18$285
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/316:05 amCMH - IAD
Nonstop1h 30mUnited Airlines
Sun 1/410:09 pmIAD - CMH
Nonstop1h 35mUnited Airlines
Deal found 12/20$291
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:28 pmCMH - IAD
2 stops23h 48mMultiple Airlines
Mon 1/56:05 amIAD - CMH
1 stop12h 01mMultiple Airlines
Deal found 12/20$333
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:35 pmCMH - IAD
1 stop18h 03mFrontier
Sun 1/255:37 pmIAD - CMH
1 stop17h 10mFrontier
Deal found 12/19$344
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/316:05 amCMH - IAD
Nonstop1h 30mUnited Airlines
Sat 1/38:15 amIAD - CMH
Nonstop1h 34mUnited Airlines
Deal found 12/18$345
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/296:05 amCMH - IAD
Nonstop1h 30mUnited Airlines
Thu 1/110:09 pmIAD - CMH
Nonstop1h 35mUnited Airlines
Deal found 12/18$370
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:02 pmCMH - IAD
1 stop15h 36mFrontier
Mon 1/56:05 amIAD - CMH
1 stop12h 01mFrontier
Deal found 12/18$374
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/305:40 amCMH - IAD
1 stop6h 05mUnited Airlines
Thu 1/110:09 pmIAD - CMH
Nonstop1h 35mUnited Airlines
Deal found 12/18$380

Find flight deals from Columbus to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Columbus (CMH) 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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$213
(United Airlines)

One-way from

$68
(Kiwi.com)

Popular in

October

Cheapest in

June

Average price

$303

Good round-trip deal

$488 or less

Good one-way deal

$304 or less
Provider with most accurate pricing for Columbus-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Columbus-Washington, D.C. Dulles Intl flights.
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From Columbus to Washington, D.C. Dulles Intl
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One-way flight from Columbus to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Columbus to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Columbus to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbus 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 December 21, 2025.
Use the filters below to find and compare flights from Columbus Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Columbus

Fly to

Dulles Intl

Route

Depart

Return

Price

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Tue 1/20

12:57 pm-7:09 pm

1 stop6h 12m

Washington, D.C. Dulles Intl

Tue 1/27

12:32 pm-5:15 pm

1 stop4h 43m

$215

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Mon 5/4

7:45 pm-9:08 pm

Nonstop1h 23m

Washington, D.C. Dulles Intl

Wed 5/6

8:15 am-9:40 am

Nonstop1h 25m

$223

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 3/4

12:44 pm-7:09 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Sat 3/7

6:00 am-9:39 am

1 stop3h 39m

$226

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 2/4

8:15 am-11:52 am

1 stop3h 37m

Washington, D.C. Dulles Intl

Mon 2/9

12:23 pm-5:24 pm

1 stop5h 01m

$228

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 1/31

10:28 am-4:46 pm

1 stop6h 18m

Washington, D.C. Dulles Intl

Mon 2/2

6:00 am-9:36 am

1 stop3h 36m

$233

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 1/24

6:25 am-11:49 am

1 stop5h 24m

Washington, D.C. Dulles Intl

Mon 1/26

5:26 pm-9:05 pm

1 stop3h 39m

$233

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sun 2/8

8:05 pm-9:23 pm

Nonstop1h 18m

Washington, D.C. Dulles Intl

Wed 2/11

5:35 pm-7:06 pm

Nonstop1h 31m

$238

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 2/14

6:00 am-7:31 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Wed 2/18

5:34 pm-6:59 pm

Nonstop1h 25m

$249

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 12/31

6:05 am-7:35 am

Nonstop1h 30m

Washington, D.C. Dulles Intl

Thu 1/1

10:09 pm-11:44 pm

Nonstop1h 35m

$249

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Thu 4/30

10:20 am-11:37 am

Nonstop1h 17m

Washington, D.C. Dulles Intl

Fri 5/1

8:15 am-9:40 am

Nonstop1h 25m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 21 results
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Compare providers for flights from Columbus 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 Columbus to Dulles Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Columbus Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Columbus Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Columbus Airport-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 Columbus Airport-Washington, D.C. Dulles Intl Airport 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 Columbus Airport-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 Columbus to Dulles Intl

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

How far ahead should I book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Columbus to Dulles Intl. Price data was last updated on December 12, 2025.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Columbus Airport to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $77). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $238). 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 CMH to IAD?

Find hourly flight availability from Columbus to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

It’s optimal to fly from Columbus Airport to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Columbus Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Columbus to Dulles Intl. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Columbus Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Columbus Airport to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Columbus Airport to Washington, D.C. Dulles Intl Airport trip
Airlines
Ethiopian Air

Economy Class seats feature a 32-inch pitch and personal entertainment monitors.


Cloud 9 passengers enjoy real Champagne and elegant glassware.

Read more about Ethiopian AirBy Paul Rubio
United Airlines

Basic Economy allows a personal item only; no carry-on bags unless exceptions apply.


Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United AirlinesBy Harriet Baskas
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 December 21, 2025.
Get a feel of what it's like to fly with United Airlines from Columbus Airport to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,099 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,099 reviews
United Airlines
7.4
Good
9,099 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

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

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

    Departing from Columbus Airport to Washington, D.C. Dulles Intl Airport will take you 1h 23m. The distance from Columbus Airport to Washington, D.C. Dulles Intl Airport is about 299 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, United Airlines ($187), offers the cheapest pricing from Columbus Airport to Washington, D.C. Dulles Intl Airport. United Airlines is currently priced 41% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Columbus Airport to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport consider choosing Mesa Airlines (92%), Ethiopian Air (89%) or ANA (89%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Columbus Airport to Washington, D.C. Dulles Intl Airport?

    While on average a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport is generally $956, our data shows the cheapest flight currently is $124. When looking at the most popular route, (Columbus - Washington, D.C. Dulles Intl), you can expect to pay $189 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Columbus 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.

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

    Currently, September is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $77). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $238). 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

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
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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Alternative routes for Columbus to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Columbus to Baltimore flights
Columbus to Reagan-National flights

Top airline flying from Columbus to Dulles Intl

Discover the top airline that operate flights from Columbus 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$190Average$304FlexibilityNo cancel feeOn-time69%

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