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Dulles Intl

$93+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — IAD
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
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Find cheap flights from Columbus to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Columbus to Washington, D.C. Dulles Intl are usually found in January or September, booked 14 days in advance, depart on a Friday or Tuesday and return on a Saturday

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 August 4, 2026.

This CheapOair deal was found by Cheapflights users on 8/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:16 pm
CMH
-
IAD
1 stop13h 11m
Frontier
Tue 9/297:50 am
IAD
-
CMH
1 stop11h 05m
Frontier
Deal found 8/3$204
This United Airlines deal was found by Cheapflights users on 8/3. 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 10/266:10 am
CMH
-
IAD
Nonstop1h 24m
United Airlines
Wed 10/2810:10 pm
IAD
-
CMH
Nonstop1h 30m
United Airlines
Deal found 8/3$205
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Tue 9/810:28 am
CMH
-
IAD
2 stops12h 24m
Frontier
Sun 9/137:50 am
IAD
-
CMH
1 stop11h 05m
Frontier
Deal found 8/3$212
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/157:59 pm
CMH
-
IAD
Nonstop1h 20m
United Airlines
Wed 9/165:31 pm
IAD
-
CMH
Nonstop1h 29m
United Airlines
Deal found 8/3$216
This CheapOair deal was found by Cheapflights users on 8/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:39 pm
CMH
-
IAD
1 stop13h 11m
Frontier
Mon 8/244:52 pm
IAD
-
CMH
1 stop16h 51m
Frontier
Deal found 8/1$220
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/47:59 pm
CMH
-
IAD
Nonstop1h 20m
United Airlines
Sun 9/68:21 am
IAD
-
CMH
Nonstop1h 25m
United Airlines
Deal found 8/3$222
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Sun 8/236:10 pm
CMH
-
IAD
2 stops15h 40m
Frontier
Sun 8/306:20 am
IAD
-
CMH
1 stop11h 05m
Frontier
Deal found 8/3$223
This Super.com deal was found by Cheapflights users on 8/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:16 pm
CMH
-
IAD
1 stop13h 01m
Frontier
Fri 9/2511:12 am
IAD
-
CMH
1 stop9h 19m
Frontier
Deal found 8/3$224
This Delta deal was found by Cheapflights users on 8/3. 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.
Wed 9/96:30 am
CMH
-
IAD
1 stop3h 51m
Delta
Wed 9/96:07 pm
IAD
-
CMH
1 stop6h 08m
Delta
Deal found 8/3$225
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:28 am
CMH
-
IAD
1 stop5h 39m
Frontier
Fri 9/49:54 pm
IAD
-
CMH
1 stop11h 49m
Frontier
Deal found 7/31$226
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Sun 8/236:10 pm
CMH
-
IAD
1 stop23h 04m
Frontier
Fri 8/2810:45 am
IAD
-
CMH
1 stop22h 58m
Frontier
Deal found 8/3$227
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/199:54 am
CMH
-
IAD
2 stops9h 50m
Multiple Airlines
Sat 8/228:39 pm
IAD
-
CMH
1 stop20h 46m
Multiple Airlines
Deal found 8/1$228

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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(CheapOair)

One-way from

$93
(Super.com)

Popular in

October

Cheapest in

January

Average price

$300

Good round-trip deal

$506 or less

Good one-way deal

$256 or less
Provider with most accurate pricing for Columbus-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Columbus-Washington, D.C. Dulles Intl flights.
Search Deals
From Columbus to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Columbus to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($27 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 August 2026
Search Deals
Price to beat on a round-trip flight from Columbus to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Columbus to Washington, D.C. Dulles Intl.
Search Deals

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 August 4, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Tue 9/8

10:30 am-11:55 am

Nonstop1h 25m

Washington, D.C. Dulles Intl

Wed 9/9

5:31 pm-7:00 pm

Nonstop1h 29m

$205

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 9/9

6:30 am-10:21 am

1 stop3h 51m

Washington, D.C. Dulles Intl

Wed 9/9

6:07 pm-12:15 am

1 stop6h 08m

$225

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 9/9

7:05 am-11:30 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Thu 9/10

10:15 am-3:57 pm

1 stop5h 42m

$225

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Fri 9/4

10:30 am-11:55 am

Nonstop1h 25m

Washington, D.C. Dulles Intl

Mon 9/7

10:15 pm-11:44 pm

Nonstop1h 29m

$236

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 8/22

8:05 am-11:48 am

1 stop3h 43m

Washington, D.C. Dulles Intl

Sat 8/22

5:47 pm-11:18 pm

1 stop5h 31m

$247

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Fri 9/25

6:30 am-10:21 am

1 stop3h 51m

Washington, D.C. Dulles Intl

Mon 9/28

7:17 pm-12:15 am

1 stop4h 58m

$256

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Mon 9/28

3:14 pm-4:35 pm

Nonstop1h 21m

Washington, D.C. Dulles Intl

Fri 10/9

10:30 pm-11:59 pm

Nonstop1h 29m

$269
Quickest round-trip

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Thu 10/8

6:02 am-7:27 am

Nonstop1h 25m

Washington, D.C. Dulles Intl

Mon 10/12

12:45 pm-2:08 pm

Nonstop1h 23m

$275

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Thu 10/29

6:10 am-7:34 am

Nonstop1h 24m

Washington, D.C. Dulles Intl

Mon 11/2

12:49 pm-2:17 pm

Nonstop1h 28m

$275
Cheapest one-way
Quickest one-way

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 8/26

7:59 pm-9:19 pm

Nonstop1h 20m

$103

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 August.
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 Columbus Airport-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 Columbus Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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?

Booking 13 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, January is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $268). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of $515). 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 August 4, 2026.

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 45% 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 August 1, 2026.

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

How much does it cost to fly round-trip from Columbus Airport to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Columbus Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $251 and $455 in September.
The cheapest round-trip price found within the last 5 days was $204 on Frontier (Sep 26-Sep 29).

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
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air

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 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 August 4, 2026.
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
10,058 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Boarding

7.7

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
10,058 reviews
United Airlines
7.4
Good
10,058 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Boarding

7.7

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 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 25m. 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 ($197), 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 Republic Airways (93%), Ethiopian Air (90%) or ANA (88%) 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 $1,963, our data shows the cheapest flight currently is $123. When looking at the most popular route, (Columbus - Washington, D.C. Dulles Intl), you can expect to pay $178 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, January is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $268). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of $515). 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
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Oxon Hill
Hunt Valley
Woodbridge

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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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$197Average$320FlexibilityNo cancel feeOn-time69%

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