$89 Cheap Flights from Columbus (CMH) to Washington (IAD)

View $89 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Columbus to Washington (CMH-IAD)

Prices were available within the past 7 days and start at $89 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Aug 30 - Tue, Sep 2
CMH
Columbus
IAD
Washington
$177 Roundtrip, found 5 hours ago
$177
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Aug 30 from Columbus to Washington, returning Tue, Sep 2, priced at $177 found 5 hours ago
United
Wed, Oct 29 - Thu, Oct 30
CMH
Columbus
IAD
Washington
$186 Roundtrip, found 2 hours ago
$186
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Oct 29 from Columbus to Washington, returning Thu, Oct 30, priced at $186 found 2 hours ago
Frontier Airlines
Sat, Aug 23 - Sat, Aug 30
CMH
Columbus
IAD
Washington
$188 Roundtrip, found 5 hours ago
$188
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, Aug 23 from Columbus to Washington, returning Sat, Aug 30, priced at $188 found 5 hours ago
United
Tue, Oct 21 - Sat, Oct 25
CMH
Columbus
IAD
Washington
$191 Roundtrip, found 2 days ago
$191
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Columbus to Washington, returning Sat, Oct 25, priced at $191 found 2 days ago
Frontier Airlines
Fri, Aug 22 - Wed, Sep 3
CMH
Columbus
IAD
Washington
$193 Roundtrip, found 5 hours ago
$193
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Aug 22 from Columbus to Washington, returning Wed, Sep 3, priced at $193 found 5 hours ago
United
Mon, Aug 25 - Thu, Aug 28
CMH
Columbus
IAD
Washington
$195 Roundtrip, found 4 hours ago
$195
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Aug 25 from Columbus to Washington, returning Thu, Aug 28, priced at $195 found 4 hours ago
Delta
Wed, Aug 20 - Tue, Aug 26
CMH
Columbus
IAD
Washington
$197 Roundtrip, found 5 hours ago
$197
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Aug 20 from Columbus to Washington, returning Tue, Aug 26, priced at $197 found 5 hours ago
United
Tue, Nov 11 - Sun, Nov 16
CMH
Columbus
IAD
Washington
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 11 from Columbus to Washington, returning Sun, Nov 16, priced at $197 found 5 days ago
Southwest Airlines
Thu, Nov 27 - Sat, Dec 6
CMH
Columbus
IAD
Washington
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Nov 27 from Columbus to Washington, returning Sat, Dec 6, priced at $218 found 1 day ago
American Airlines
Wed, Oct 8 - Sat, Oct 11
CMH
Columbus
IAD
Washington
$251 Roundtrip, found 5 hours ago
$251
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Oct 8 from Columbus to Washington, returning Sat, Oct 11, priced at $251 found 5 hours ago

Find the cheapest month to fly from Columbus (CMH) to Washington (IAD)

September is typically the cheapest month to fly

From $110 - $702 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $341
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $341
Flights from Columbus (CMH) to Washington (IAD)
Origin airport
John Glenn Columbus Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$177
Distance
298 mi
Average flight time
1 hour 49 mins

Columbus to Washington Flights

The cheapest times to fly from Columbus to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Columbus to Washington are during the month of August. You can find some of the cheapest flights from Columbus to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Columbus to Washington

Sunday is one of the best days to book for cheap flights from Columbus to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Columbus to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Columbus to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Columbus to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Columbus to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD) cost?
Cheap return fares from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD) start at $177. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Southwest Airlines flight leaving CMH on August 12 2025 and touching down at IAD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from CMH to IAD?
The cheapest flights from CMH to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
Hop on a nonstop flight with United Airlines and fly straight from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD).
What is the cheapest airline that flies from CMH to IAD?
Right now, the cheapest airline operating one-way flights from CMH to IAD is United. You can book a seat on this route from $89. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CMH on September 8 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
Each day, an average of 4 nonstop flights operate from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD). Choose the departure that best suits your travel plans.
What are the most popular departure times for flights from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
Flights between CMH and IAD are their busiest at 7 PM. For a more relaxed experience and potentially cheaper prices, look for a time when demand is lower.
What day of the week has the most flights from CMH to IAD?
Fly on a Friday if you're searching for the biggest selection of flights from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
The earliest flight out of John Glenn Columbus Intl. Airport (CMH) is at around 6:00AM UTC-5. Catch this flight and you'll touch down at Washington Dulles Intl. Airport (IAD) at approximately 7:30AM UTC-5. The total time in the air is 1h 30m.
How long does it take to fly from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
Flights from CMH to IAD have an average travel time of 1 hour and 21 minutes. The distance between the two airports is 300 mi.
What is the best time to fly from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from John Glenn Columbus Intl. Airport (CMH)?
John Glenn Columbus Intl. Airport (CMH) has direct flights to Washington. These are some of the airports you can fly straight to:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until just before your departure to book a ticket from CMH to IAD generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Keep your travel schedule open for a better chance of snagging a bargain.
Is it cheaper to book a CMH to IAD flight and hotel package?
You'll typically save money by booking a CMH to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from John Glenn Columbus Intl. Airport (CMH) to Washington Dulles Intl. Airport (IAD)?
Typically, it's possible to cancel or reschedule your CMH to IAD flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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