$92 Cheap Flights from Columbus (CMH) to Washington (IAD)

View $92 flight on Wed, Jul 16, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Columbus to Washington (CMH-IAD)

Prices were available within the past 7 days and start at $92 for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Aug 6 - Wed, Aug 13
CMH
Columbus
IAD
Washington
$172 Roundtrip, found 6 hours ago
$172
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Aug 6 from Columbus to Washington, returning Wed, Aug 13, priced at $172 found 6 hours ago
United
Sat, May 10 - Sat, May 24
CMH
Columbus
IAD
Washington
$183 Roundtrip, found 2 days ago
$183
Roundtrip
found 2 days ago
Select United flight, departing Sat, May 10 from Columbus to Washington, returning Sat, May 24, priced at $183 found 2 days ago
Frontier Airlines
Wed, Aug 13 - Fri, Aug 15
CMH
Columbus
IAD
Washington
$192 Roundtrip, found 5 hours ago
$192
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, Aug 13 from Columbus to Washington, returning Fri, Aug 15, priced at $192 found 5 hours ago
Delta
Sun, Apr 20 - Tue, Apr 29
CMH
Columbus
IAD
Washington
$196 Roundtrip, found 4 days ago
$196
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Apr 20 from Columbus to Washington, returning Tue, Apr 29, priced at $196 found 4 days ago
Delta
Sat, Apr 19 - Sun, Apr 20
CMH
Columbus
IAD
Washington
$199 Roundtrip, found 4 hours ago
$199
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Apr 19 from Columbus to Washington, returning Sun, Apr 20, priced at $199 found 4 hours ago
United
Tue, Jul 1 - Mon, Jul 21
CMH
Columbus
IAD
Washington
$202 Roundtrip, found 2 days ago
$202
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jul 1 from Columbus to Washington, returning Mon, Jul 21, priced at $202 found 2 days ago
Delta
Tue, Jun 3 - Tue, Jul 1
CMH
Columbus
IAD
Washington
$203 Roundtrip, found 1 hour ago
$203
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Jun 3 from Columbus to Washington, returning Tue, Jul 1, priced at $203 found 1 hour ago
United
Tue, Jul 1 - Mon, Jul 7
CMH
Columbus
IAD
Washington
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jul 1 from Columbus to Washington, returning Mon, Jul 7, priced at $204 found 1 day ago
Delta
Wed, Jul 23 - Wed, Aug 6
CMH
Columbus
IAD
Washington
$206 Roundtrip, found 6 days ago
$206
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jul 23 from Columbus to Washington, returning Wed, Aug 6, priced at $206 found 6 days ago
American Airlines
Wed, Jul 23 - Wed, Aug 6
CMH
Columbus
IAD
Washington
$220 Roundtrip, found 6 days ago
$220
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jul 23 from Columbus to Washington, returning Wed, Aug 6, priced at $220 found 6 days ago
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, Southwest Airlines, United
Roundtrip price
$172
Distance
298 mi

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 $92 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 long does it take to fly from John Glenn Intl. Airport to Dulles Intl. Airport?
A direct flight with United Airlines takes approximately 1 hour and 22 minutes. Take the 10:23AM flight from John Glenn Intl. Airport and reach Washington Dulles Intl. Airport (IAD) at 11:45AM. Snag an amazing deal on this route when you book your fare with Expedia.
Is it cheaper to buy a plane ticket from John Glenn Columbus Intl. Airport (CMH) to IAD last minute?
When it comes to booking your flights, being prepared pays dividends. While it may be possible to pick up a deal on a John Glenn Intl. Airport to Dulles Intl. Airport flight at the last minute, tickets usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international journeys it’s three to four months.
What airports do you fly into for Washington from Columbus?
Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are your choices when flying from Columbus to Washington. Approximately 25 mi west of central Washington, Washington Dulles Intl. Airport (IAD) is the city’s principal gateway. Take into account things like flight arrival and departure times and the distance to your hotel before you select an airport. White House and United States Capitol are two top attractions to add to your must-see list when you arrive at your destination.
What are the most popular departure times for flights from John Glenn Columbus Intl. Airport (CMH) to IAD?
For United Airlines flights jetting from John Glenn Columbus Intl. Airport (CMH) to Dulles Intl. Airport, the busiest time is between 10:00 AM - 11:00 AM. If you want to avoid any holdups, head off in the morning. This way you can avoid the heavy air traffic that builds up in the skyways later in the day.
Can I change the date of my flight from John Glenn Intl. Airport to IAD?
Quickly and easily make changes to your CMH to Washington Dulles Intl. Airport (IAD) flight through the Expedia Trips portal. But before you make any amendments, read through the ticket rules in your itinerary to find out what the airline will allow you to do and if any charges apply. Some carriers have a change fee per person, on top of any difference in ticket prices. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also head to our Customer Service portal for more information and to chat with our Virtual Agent.

Explore a world of travel with Expedia

*Available to One Key members.