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Cheap flights from Ottawa to Washington, D.C. from C$ 300

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 9/4. 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

Enter your travel dates to find the best prices.
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
12:55 p.m. - 2:27 p.m.
DCA
-
YOW
1h 32mdirect
C$ 520Air Canada
Thu, 23 Apr - Mon, 27 Apr
Air Canada Logo
10:25 a.m. - 12:01 p.m.
YOW
-
DCA
1h 36mdirect
Air Canada Logo
6:00 a.m. - 10:11 a.m.
DCA
-
YOW
4h 11m
1 stop
C$ 521Air Canada
Thu, 23 Apr - Mon, 27 Apr
Air Canada Logo
10:25 a.m. - 12:01 p.m.
YOW
-
DCA
1h 36mdirect
Air Canada Logo
12:45 p.m. - 2:17 p.m.
DCA
-
YOW
1h 32mdirect
C$ 523Air Canada
Sun, 3 May - Tue, 5 May
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
6:00 a.m. - 10:06 a.m.
DCA
-
YOW
4h 06m
1 stop
C$ 524Air Canada
Thu, 2 Apr - Sun, 5 Apr
Air Canada Logo
10:25 a.m. - 12:01 p.m.
YOW
-
DCA
1h 36mdirect
Air Canada Logo
12:45 p.m. - 2:17 p.m.
DCA
-
YOW
1h 32mdirect
C$ 525Air Canada
Sat, 30 May - Tue, 2 Jun
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
4:10 p.m. - 10:16 p.m.
DCA
-
YOW
6h 06m
1 stop
C$ 528Air Canada
Thu, 23 Apr - Mon, 27 Apr
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
6:00 a.m. - 10:11 a.m.
DCA
-
YOW
4h 11m
1 stop
C$ 530Air Canada
Thu, 23 Apr - Mon, 27 Apr
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
6:00 a.m. - 10:11 a.m.
DCA
-
YOW
4h 11m
1 stop
C$ 531Air Canada
Thu, 23 Apr - Mon, 27 Apr
Air Canada Logo
5:45 a.m. - 10:19 a.m.
YOW
-
DCA
4h 34m
1 stop
Air Canada Logo
6:00 a.m. - 9:41 a.m.
DCA
-
YOW
3h 41m
1 stop
C$ 532Air Canada
Fri, 24 Apr - Fri, 1 May
Air Canada Logo
10:25 a.m. - 12:01 p.m.
YOW
-
DCA
1h 36mdirect
Air Canada Logo
12:45 p.m. - 2:17 p.m.
DCA
-
YOW
1h 32mdirect
C$ 534Air Canada
Fri, 24 Apr - Fri, 1 May

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

Our best United Airlines deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
7 Apr
YOW3:10 p.m.Ottawa
6h 21m
1 stop
DCA9:31 p.m.Washington, D.C. Reagan-National
14 Apr
DCA8:20 a.m.Washington, D.C. Reagan-National
5h 39m
1 stop
YOW1:59 p.m.Ottawa
C$ 536
United Airlines
1 Apr
YOW3:10 p.m.Ottawa
6h 21m
1 stop
DCA9:31 p.m.Washington, D.C. Reagan-National
9 Apr
DCA8:20 a.m.Washington, D.C. Reagan-National
13h 15m
1 stop
YOW9:35 p.m.Ottawa
C$ 538
United Airlines
27 May
YOW6:25 a.m.Ottawa
7h 57m
1 stop
DCA2:22 p.m.Washington, D.C. Reagan-National
30 May
DCA6:30 a.m.Washington, D.C. Reagan-National
15h 05m
1 stop
YOW9:35 p.m.Ottawa
C$ 545

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

Our best American Airlines deals on Ottawa to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
7 Apr
YOW6:45 a.m.Ottawa
6h 09m
1 stop
DCA12:54 p.m.Washington, D.C. Reagan-National
14 Apr
DCA10:00 a.m.Washington, D.C. Reagan-National
8h 26m
2 stops
YOW6:26 p.m.Ottawa
C$ 608
American Airlines
28 Apr
YOW6:45 a.m.Ottawa
10h 02m
2 stops
DCA4:47 p.m.Washington, D.C. Reagan-National
30 Apr
DCA10:11 a.m.Washington, D.C. Reagan-National
6h 40m
1 stop
YOW4:51 p.m.Ottawa
C$ 618
American Airlines
2 Apr
YOW6:45 a.m.Ottawa
5h 55m
1 stop
DCA12:40 p.m.Washington, D.C. Reagan-National
5 Apr
DCA10:12 a.m.Washington, D.C. Reagan-National
6h 39m
1 stop
YOW4:51 p.m.Ottawa
C$ 620

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 14 March 2026.
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

Cheapest round-trip

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 23/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Mon 27/4

12:55 p.m.-2:27 p.m.

Nonstop1h 32m

C$ 520

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 23/4

10:25 a.m.-12:01 p.m.

Nonstop1h 36m

Washington, D.C. Reagan-National

Mon 27/4

6:00 a.m.-10:11 a.m.

1 stop4h 11m

C$ 521
Quickest round-trip

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sun 3/5

10:25 a.m.-12:01 p.m.

Nonstop1h 36m

Washington, D.C. Reagan-National

Tue 5/5

12:45 p.m.-2:17 p.m.

Nonstop1h 32m

C$ 523

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 2/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Sun 5/4

6:00 a.m.-10:06 a.m.

1 stop4h 06m

C$ 524

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 30/5

10:25 a.m.-12:01 p.m.

Nonstop1h 36m

Washington, D.C. Reagan-National

Tue 2/6

12:45 p.m.-2:17 p.m.

Nonstop1h 32m

C$ 525

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 23/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Mon 27/4

4:10 p.m.-10:16 p.m.

1 stop6h 06m

C$ 528

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 23/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Mon 27/4

6:00 a.m.-10:11 a.m.

1 stop4h 11m

C$ 530

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 23/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Mon 27/4

6:00 a.m.-10:11 a.m.

1 stop4h 11m

C$ 531

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 24/4

5:45 a.m.-10:19 a.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Fri 1/5

6:00 a.m.-9:41 a.m.

1 stop3h 41m

C$ 532

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 24/4

10:25 a.m.-12:01 p.m.

Nonstop1h 36m

Washington, D.C. Reagan-National

Fri 1/5

12:45 p.m.-2:17 p.m.

Nonstop1h 32m

C$ 534

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

The month of January is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Ottawa, with most prices found around C$ 356. If you don’t want to visit Washington, D.C. Reagan-National Airport in January, then you should wait until April to fly from Ottawa, when ticket prices are also cheap, with an average price of C$ 453.

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$ 639. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, 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$ 1,156.

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

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 7% 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$ 297

Fastest flight time

1h 36m

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$ 297. 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$ 860.
The fastest flight from Ottawa to Washington, D.C. Reagan-National Airport takes 1h 36m
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 36m.

  • 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$ 234Free CancellationRating
7.4
9,423 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 355Free CancellationRating
7.1
10,800 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$ 234. Generally, United Airlines has 12 flights on this route every week with an average price of C$ 460. 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, 10,800 ratings). Air Canada flies from Ottawa to Washington, D.C. Reagan-National Airport around 6 times per week, with deals starting from C$ 355 round-trip and rising to an average price of around C$ 503.

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
Gaithersburg
Fairfax
Linthicum Heights
Bethesda
National Harbor
Reston
Laurel
Herndon
Arlington
Fredericksburg
Manassas
Woodbridge
Silver Spring
Rockville
McLean
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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