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Cheap flights from Ottawa to Washington, D.C. from C$ 269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Washington, D.C. departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ottawa to Washington, D.C.

Cheap round-trip flights

Air Canada Logo
10:30 a.m. - 12:19 p.m.YOW-DCA
1h 49mdirect
Air Canada Logo
12:55 p.m. - 2:30 p.m.DCA-YOW
1h 35mdirect
C$ 444Air Canada
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Air Canada Logo
10:30 a.m. - 12:19 p.m.YOW-DCA
1h 49mdirect
Air Canada Logo
6:00 a.m. - 12:22 p.m.DCA-YOW
6h 22m1 stop
C$ 447Air Canada
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Air Canada Logo
10:50 a.m. - 3:56 p.m.YOW-DCA
5h 06m1 stop
Air Canada Logo
6:00 a.m. - 12:22 p.m.DCA-YOW
6h 22m1 stop
C$ 448Air Canada
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
6:05 a.m. - 10:28 a.m.YOW-DCA
4h 23m1 stop
United Airlines Logo
8:30 a.m. - 2:04 p.m.DCA-YOW
5h 34m1 stop
C$ 473United Airlines
Find Deal
Fri, 10 Oct - Sun, 12 Oct
Lufthansa Logo
6:05 a.m. - 10:28 a.m.YOW-DCA
4h 23m1 stop
Lufthansa Logo
7:00 a.m. - 11:45 a.m.DCA-YOW
4h 45m1 stop
C$ 487Lufthansa
Find Deal
Fri, 10 Oct - Sun, 12 Oct
Logo
2:48 p.m. - 8:36 p.m.YOW-DCA
5h 48m1 stop
Logo
6:00 a.m. - 10:25 a.m.DCA-YOW
4h 25m1 stop
C$ 497
Find Deal
Sat, 4 Oct - Sun, 5 Oct
Logo
5:55 a.m. - 9:51 p.m.YOW-DCA
15h 56m2 stops
Logo
6:00 a.m. - 12:22 a.m.DCA-YOW
18h 22m2 stops
C$ 501
Find Deal
Fri, 3 Oct - Sun, 5 Oct
United Airlines Logo
5:25 p.m. - 10:43 p.m.YOW-DCA
5h 18m1 stop
United Airlines Logo
6:00 a.m. - 11:45 a.m.DCA-YOW
5h 45m1 stop
C$ 504United Airlines
Find Deal
Tue, 21 Oct - Thu, 23 Oct
WestJet Logo
5:55 a.m. - 6:59 p.m.YOW-DCA
13h 04m2 stops
WestJet Logo
2:00 p.m. - 12:22 a.m.DCA-YOW
10h 22m2 stops
C$ 717WestJet
Find Deal
Fri, 3 Oct - Sat, 4 Oct
WestJet Logo
5:55 a.m. - 4:12 p.m.YOW-DCA
10h 17m2 stops
WestJet Logo
1:45 p.m. - 12:22 a.m.DCA-YOW
10h 37m2 stops
C$ 728WestJet
Find Deal
Tue, 21 Oct - Thu, 23 Oct

Air Canada flights from Ottawa to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
30 Oct
YOW10:30 a.m.Ottawa
1h 49m
DCA12:19 p.m.Washington, D.C. Reagan-National
6 Nov
DCA12:55 p.m.Washington, D.C. Reagan-National
1h 35m
YOW2:30 p.m.Ottawa
C$ 444
Find similar
Air Canada
30 Oct
YOW10:30 a.m.Ottawa
1h 49m
DCA12:19 p.m.Washington, D.C. Reagan-National
6 Nov
DCA6:00 a.m.Washington, D.C. Reagan-National
6h 22m
1 stop
YOW12:22 p.m.Ottawa
C$ 447
Find similar
Air Canada
30 Oct
YOW10:50 a.m.Ottawa
5h 06m
1 stop
DCA3:56 p.m.Washington, D.C. Reagan-National
6 Nov
DCA6:00 a.m.Washington, D.C. Reagan-National
6h 22m
1 stop
YOW12:22 p.m.Ottawa
C$ 448
Find similar

WestJet flights from Ottawa to Washington, D.C. Reagan-National Airport

Our best WestJet deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
WestJet
3 Oct
YOW5:55 a.m.Ottawa
13h 04m
2 stops
DCA6:59 p.m.Washington, D.C. Reagan-National
4 Oct
DCA2:00 p.m.Washington, D.C. Reagan-National
10h 22m
2 stops
YOW12:22 a.m.Ottawa
C$ 717
Find similar
WestJet
21 Oct
YOW5:55 a.m.Ottawa
10h 17m
2 stops
DCA4:12 p.m.Washington, D.C. Reagan-National
23 Oct
DCA1:45 p.m.Washington, D.C. Reagan-National
10h 37m
2 stops
YOW12:22 a.m.Ottawa
C$ 728
Find similar
WestJet
21 Sep
YOW7:15 p.m.Ottawa
16h 14m
2 stops
DCA11:29 a.m.Washington, D.C. Reagan-National
23 Sep
DCA6:55 p.m.Washington, D.C. Reagan-National
16h 37m
2 stops
YOW11:32 a.m.Ottawa
C$ 1,129
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Washington, D.C. Reagan-National Airport 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, momondo users made 96,600 searches. Data last updated 15 September 2025.
Use the filters below to find and compare flights from Ottawa to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 30/10

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 6/11

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

C$ 444

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 30/10

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 6/11

6:00 a.m.-12:22 p.m.

1 stop6h 22m

C$ 447

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 30/10

10:50 a.m.-3:56 p.m.

1 stop5h 06m

Washington, D.C. Reagan-National

Thu 6/11

6:00 a.m.-12:22 p.m.

1 stop6h 22m

C$ 448

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 10/10

6:05 a.m.-10:28 a.m.

1 stop4h 23m

Washington, D.C. Reagan-National

Sun 12/10

8:30 a.m.-2:04 p.m.

1 stop5h 34m

C$ 473

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 10/10

6:05 a.m.-10:28 a.m.

1 stop4h 23m

Washington, D.C. Reagan-National

Sun 12/10

7:00 a.m.-11:45 a.m.

1 stop4h 45m

C$ 487

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 4/10

2:48 p.m.-8:36 p.m.

1 stop5h 48m

Washington, D.C. Reagan-National

Sun 5/10

6:00 a.m.-10:25 a.m.

1 stop4h 25m

C$ 497

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 3/10

5:55 a.m.-9:51 p.m.

2 stops15h 56m

Washington, D.C. Reagan-National

Sun 5/10

6:00 a.m.-12:22 a.m.

2 stops18h 22m

C$ 501

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Tue 21/10

5:25 p.m.-10:43 p.m.

1 stop5h 18m

Washington, D.C. Reagan-National

Thu 23/10

6:00 a.m.-11:45 a.m.

1 stop5h 45m

C$ 504

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 3/10

5:55 a.m.-6:59 p.m.

2 stops13h 04m

Washington, D.C. Reagan-National

Sat 4/10

2:00 p.m.-12:22 a.m.

2 stops10h 22m

C$ 717

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Tue 21/10

5:55 a.m.-4:12 p.m.

2 stops10h 17m

Washington, D.C. Reagan-National

Thu 23/10

1:45 p.m.-12:22 a.m.

2 stops10h 37m

C$ 728

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ottawa to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ottawa and Washington, D.C. Reagan-National Airport?

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of March is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Ottawa, with most prices found around C$ 448. If you don’t want to visit Washington, D.C. Reagan-National Airport in March, then you should wait until January to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 455.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

On average, the least expensive day to fly to Washington, D.C. Reagan-National Airport from Ottawa is on a Friday. momondo users have found tickets for Friday departures for as low as C$ 608. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Ottawa to Washington, D.C. Reagan-National Airport for around C$ 974.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Ottawa to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the evening. Our users have found flights to Washington, D.C. Reagan-National Airport in the evening for as low as C$ 618. Flights in the morning are often more expensive with an average ticket price of C$ 819.

What is the cheapest Ottawa to Washington, D.C. Reagan-National flight route?

Fly from Ottawa to Washington, D.C. Reagan-National for the best Ottawa - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around C$ 522 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Ottawa for as low as C$ 331 on momondo.

What cabin class options are available on Ottawa to Washington, D.C. Reagan-National flights?

There are 3 cabin classes available to choose from on Ottawa to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ottawa to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 58% on your flight if you consider stops on a Ottawa to Washington, D.C. Reagan-National Airport flight.

How have Ottawa to Washington, D.C. Reagan-National Airport flight prices changed over time?

When to book flights from Ottawa to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Washington, D.C. Reagan-National Airport (YOW to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Washington, D.C. Reagan-National Airport

Best price found

C$ 538

Fastest flight time

1h 43m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Ottawa in the past 72 hours is C$ 538. The best round-trip flight deal from Ottawa to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is C$ 592.
The fastest flight from Ottawa to Washington, D.C. Reagan-National Airport takes 1h 43m
Direct flights go from Ottawa to Washington, D.C. Reagan-National Airport every day.
Search flight deals

  • How far is Ottawa to Washington, D.C. Reagan-National by plane?

    The distance between Ottawa and Washington, D.C. Reagan-National is about 737.6 km. A reasonable flight in good conditions will take 1h 43m.

  • When did momondo last update prices for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ottawa Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from Ottawa Airport to Washington, D.C. Reagan-National Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ottawa to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from Ottawa to Washington, D.C. Reagan-National Airport?

Best airlines flying from Ottawa to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Ottawa to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom C$ 335Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 342Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

  • United Airlines Flights From Ottawa to Washington, D.C. Reagan-National Airport

    The lowest priced United Airlines flight from Ottawa to Washington, D.C. Reagan-National Airport from the last 72 hours was C$ 242. Generally, United Airlines has 7 flights on this route every week with an average price of C$ 323. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Ottawa to Washington, D.C. Reagan-National Airport

    Another popular option for Ottawa to Washington, D.C. Reagan-National Airport flights is Air Canada (7.1/10, 10,000 ratings). Air Canada flies from Ottawa to Washington, D.C. Reagan-National Airport around 7 times per week, with deals starting from C$ 247 round-trip and rising to an average price of around C$ 377.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Linthicum Heights
Bethesda
Silver Spring
Herndon
Reston
Fairfax
Laurel
Capitol Heights
Arlington
Manassas
Fredericksburg
Woodbridge
Rockville
McLean
National Harbor
Tysons

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to Washington, D.C. for you.

Can I find flights from Ottawa to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ottawa to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Ottawa to Washington, D.C.?

Once you have performed a search for Ottawa to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ottawa to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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