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Dulles Intl

$89+ Cheap flights from Columbus 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — IAD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 (C01) 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 30, 2025.

Round-trip from

$177
(United Airlines)

One-way from

$89
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$353
From Columbus to Washington, D.C. Dulles Intl
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One-way flight from Columbus to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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 8/196:10 amCMH - IAD
Nonstop1h 23mUnited Airlines
Wed 8/2012:45 pmIAD - CMH
Nonstop1h 18mUnited Airlines
Deal found 7/28$177
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/305:03 pmCMH - IAD
1 stop5h 57mFrontier
Sat 9/67:14 pmIAD - CMH
1 stop15h 07mFrontier
Deal found 7/28$185
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 9/68:10 amCMH - IAD
1 stop3h 22mDelta
Wed 9/106:00 amIAD - CMH
1 stop5h 15mDelta
Deal found 7/28$197
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/196:00 amCMH - IAD
1 stop3h 53mAmerican Airlines
Tue 8/194:36 pmIAD - CMH
1 stop4h 12mAmerican Airlines
Deal found 7/28$251
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Wed 8/206:34 pmCMH - IAD
2 stops16h 10mMultiple Airlines
Thu 8/214:56 pmIAD - CMH
2 stops18h 32mMultiple Airlines
Deal found 7/29$260

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 30, 2025.
Use the filters below to find and compare flights from Columbus 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 8/19

6:10 am-7:33 am

Nonstop1h 23m

Washington, D.C. Dulles Intl

Wed 8/20

12:45 pm-2:03 pm

Nonstop1h 18m

$177

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 8/30

5:03 pm-11:00 pm

1 stop5h 57m

Washington, D.C. Dulles Intl

Sat 9/6

7:14 pm-10:21 am

1 stop15h 07m

$185

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 9/6

8:10 am-11:32 am

1 stop3h 22m

Washington, D.C. Dulles Intl

Wed 9/10

6:00 am-11:15 am

1 stop5h 15m

$197

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Tue 8/19

6:00 am-9:53 am

1 stop3h 53m

Washington, D.C. Dulles Intl

Tue 8/19

4:36 pm-8:48 pm

1 stop4h 12m

$251

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Wed 8/20

6:34 pm-10:44 am

2 stops16h 10m

Washington, D.C. Dulles Intl

Thu 8/21

4:56 pm-11:28 am

2 stops18h 32m

$260

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 9/13

1:20 pm-2:42 pm

Nonstop1h 22m

$89

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 9/27

11:31 am-6:24 pm

1 stop6h 53m

$90

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Thu 9/4

7:02 am-12:02 pm

1 stop5h 00m

$108

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 8/23

12:05 pm-10:44 am

2 stops22h 39m

$125

ColumbusWashington, D.C.

CMH - IAD

CMHIAD

Columbus

Sat 9/20

6:00 am-10:07 am

1 stop4h 07m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Columbus 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 25, 2025.

The price you pay for your flight from Columbus to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, July is the cheapest month in which you can book a flight from Columbus to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Columbus 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 30, 2025.

It’s optimal to fly from Columbus to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Columbus 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 27, 2025.

Travelers seeking maximum savings on their Columbus 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 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 30, 2025.

The most flights from C01 to IAD are scheduled on a Monday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 30, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Columbus 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.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
Frontier
5.9
Fair
3,237 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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 to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $177, United Airlines will fly you from Columbus to Washington, D.C. Dulles Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $185 and $197, respectively. Users have found that United Airlines is 43% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Columbus to Washington, D.C. Dulles Intl Airport are United Airlines ($89), Frontier ($90), and Delta ($108).

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

    Consider Ethiopian Air (93%), ANA (93%) or Air China (89%) when booking your flight. These represent the most reliable airlines when flying from Columbus to Washington, D.C. Dulles Intl Airport.

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

    While on average a flight from Columbus to Washington, D.C. Dulles Intl Airport is generally $2,403, our data shows the cheapest flight currently is $131. 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 to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Columbus to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Columbus 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
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Alternative routes for Columbus to Dulles Intl

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$185Average$305FlexibilityNo cancel feeOn-time69%

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