Dulles Intl

$89+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — IAD
Jul 19 — Jul 261
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Cheapflights Tip: The best prices from Columbus to Washington, D.C. Dulles Intl are usually found in August or June, booked 54 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap 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 July 14, 2025.

Round-trip from

$178
(United Airlines)

One-way from

$89
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$319

Good round-trip deal

$635 or less

Good one-way deal

$299 or less
From Columbus to Washington, D.C. Dulles Intl
One-way flight from Columbus to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 7% potential increase in price ($24 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Columbus to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Columbus to Washington, D.C. Dulles Intl.

Find 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 July 14, 2025.

This United Airlines deal was found by Cheapflights users on 7/13. 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 8/2810:35 amCMH - IAD
Nonstop1h 15mUnited Airlines
Sun 8/3110:15 pmIAD - CMH
Nonstop1h 28mUnited Airlines
Deal found 7/13$178
This Delta deal was found by Cheapflights users on 7/13. 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.
Thu 8/147:02 amCMH - IAD
1 stop5h 00mDelta
Sat 8/166:00 amIAD - CMH
1 stop5h 15mDelta
Deal found 7/13$197
This Mytrip deal was found by Cheapflights users on 7/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2512:31 pmCMH - IAD
1 stop11h 41mFrontier
Mon 7/286:10 amIAD - CMH
1 stop5h 32mFrontier
Deal found 7/11$214
This American Airlines deal was found by Cheapflights users on 7/13. 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 10/61:17 pmCMH - IAD
1 stop6h 28mAmerican Airlines
Wed 10/88:09 amIAD - CMH
1 stop5h 46mAmerican Airlines
Deal found 7/13$254

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 July 14, 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

Thu 8/28

10:35 am-11:50 am

Nonstop1h 15m

Washington, D.C. Dulles Intl

Sun 8/31

10:15 pm-11:43 pm

Nonstop1h 28m

$178

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Thu 8/14

7:02 am-12:02 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Sat 8/16

6:00 am-11:15 am

1 stop5h 15m

$197

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Fri 7/25

12:31 pm-12:12 am

1 stop11h 41m

Washington, D.C. Dulles Intl

Mon 7/28

6:10 am-11:42 am

1 stop5h 32m

$214

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Mon 10/6

1:17 pm-7:45 pm

1 stop6h 28m

Washington, D.C. Dulles Intl

Wed 10/8

8:09 am-1:55 pm

1 stop5h 46m

$254

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Fri 9/26

12:31 pm-8:44 pm

2 stops8h 13m

Washington, D.C. Dulles Intl

Mon 9/29

10:49 am-6:11 pm

3 stops31h 22m

$283

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 8/27

10:35 am-11:50 am

Nonstop1h 15m

$89

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 8/23

7:02 am-12:02 pm

1 stop5h 00m

$99

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sun 8/17

3:08 pm-12:51 pm

1 stop21h 43m

$117

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 8/16

12:20 pm-10:14 am

2 stops21h 54m

$122

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 9/20

2:35 pm-6:47 pm

1 stop4h 12m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

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.

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

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 July 11, 2025.

Booking 54 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, August is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 July 14, 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 42% 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 July 13, 2025.

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

Weekly flight availability from Columbus Airport to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Columbus to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 14, 2025.

The most flights from CMH to IAD are scheduled on a Monday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (14 on average).

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 14, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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.
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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

    According to our current data, United Airlines ($178), Delta ($197), and Frontier ($214) offers the cheapest pricing from Columbus Airport to Washington, D.C. Dulles Intl Airport. United Airlines is currently priced 43% below the average price you’ll pay for this route.

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

    $89 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Frontier, with prices starting from $99 and $117, respectively.

  • 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 Ethiopian Air (97%), ANA (97%) or Air China (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 $2,538, our data shows the cheapest flight currently is $134. When looking at the most popular route, (Columbus - Washington, D.C. Dulles Intl), you can expect to pay $177 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, August is the cheapest month in which you can book a flight from Columbus Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Columbus Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Fairfax
Towson
Linthicum Heights
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Manassas
Dundalk

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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.

Top 2 airlines flying from Columbus to Dulles Intl

Discover the top 2 airlines 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 July 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$172Average$294FlexibilityNo cancel feeOn-time69%
DeltaCheapest$187Average$311FlexibilityNo cancel feeOn-timeN/A

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