Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Reagan-National Airport to Ottawa from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Ottawa 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.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$297Air Canada
Sun, Feb 1 - Sun, Feb 8
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$298Air Canada
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$301Air Canada
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$302Air Canada
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
8:40 pm - 1:38 am
DCA
-
YOW
4h 58m1 stop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$305Air Canada
Sun, Feb 1 - Sun, Feb 8
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$307Air Canada
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
6:00 am - 9:42 am
DCA
-
YOW
3h 42m1 stop
Air Canada Logo
9:15 am - 7:45 pm
YOW
-
DCA
10h 30m1 stop
$339Air Canada
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
6:00 am - 9:41 am
DCA
-
YOW
3h 41m1 stop
Air Canada Logo
9:15 am - 6:05 pm
YOW
-
DCA
8h 50m1 stop
$342Air Canada
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
11:05 am - 4:23 pm
DCA
-
YOW
5h 18m1 stop
Multiple Airlines Logo
6:45 am - 12:50 pm
YOW
-
DCA
6h 05m1 stop
$347Multiple Airlines
Thu, Jan 22 - Sun, Jan 25
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
$349Air Canada
Sun, Jan 18 - Thu, Jan 29

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

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Ottawa flight tickets
Air Canada
Jan 22
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Jan 25
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$298
Find similar
Air Canada
Jan 22
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Jan 25
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$301
Find similar
Air Canada
Jan 22
DCA6:00 amWashington, D.C. Reagan-National
3h 42m
1 stop
YOW9:42 amOttawa
Jan 25
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$302
Find similar

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Ottawa flight tickets
United Airlines
Feb 3
DCA12:00 pmWashington, D.C. Reagan-National
5h 12m
1 stop
YOW5:12 pmOttawa
Feb 10
YOW3:10 pmOttawa
6h 42m
1 stop
DCA9:52 pmWashington, D.C. Reagan-National
$374
Find similar
United Airlines
Feb 3
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Feb 10
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$403
Find similar
United Airlines
Feb 3
DCA7:00 amWashington, D.C. Reagan-National
6h 32m
1 stop
YOW1:32 pmOttawa
Feb 10
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$412
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to Ottawa 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 832,500 searches. Data last updated December 21, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 2/1

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Sun 2/8

10:30 am-12:19 pm

Nonstop1h 49m

$297

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Sun 1/25

10:30 am-12:19 pm

Nonstop1h 49m

$298

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Sun 1/25

10:30 am-12:19 pm

Nonstop1h 49m

$301

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

6:00 am-9:42 am

1 stop3h 42m

Ottawa

Sun 1/25

10:30 am-12:19 pm

Nonstop1h 49m

$302

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 2/1

8:40 pm-1:38 am

1 stop4h 58m

Ottawa

Sun 2/8

10:30 am-12:19 pm

Nonstop1h 49m

$305

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

6:00 am-9:42 am

1 stop3h 42m

Ottawa

Sun 1/25

10:30 am-12:19 pm

Nonstop1h 49m

$307

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

6:00 am-9:42 am

1 stop3h 42m

Ottawa

Sun 1/25

9:15 am-7:45 pm

1 stop10h 30m

$339

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 2/1

6:00 am-9:41 am

1 stop3h 41m

Ottawa

Sun 2/8

9:15 am-6:05 pm

1 stop8h 50m

$342

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/22

11:05 am-4:23 pm

1 stop5h 18m

Ottawa

Sun 1/25

6:45 am-12:50 pm

1 stop6h 05m

$347

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 1/18

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Thu 1/29

10:30 am-12:19 pm

Nonstop1h 49m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ottawa from

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

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 day to depart on your flight to Ottawa?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Ottawa is on a Monday. Travelers who choose to depart for Ottawa on a Monday will often find tickets for as low as $429. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Thursday is $507.

What is the cheapest time of day to depart on your flight to Ottawa?

In the morning is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Ottawa when you can find flight prices for as low as $458. Flying to Ottawa in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $684 on average. Flights to Ottawa from Washington, D.C. Reagan-National Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

There are 4 cabin classes available to choose from on Washington, D.C. Reagan-National to Ottawa 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 Washington, D.C. Reagan-National Airport to Ottawa flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Reagan-National Airport to Ottawa.

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

As of December 2025, prices for Washington, D.C. Reagan-National Airport to Ottawa flights are approximately 47% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$218

Fastest flight time

1h 31m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. Reagan-National Airport in the past 72 hours is $218. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Ottawa found on momondo in the last 72 hours is $412.
The fastest flight from Washington, D.C. Reagan-National Airport to Ottawa takes 1h 31m
Direct flights go from Washington, D.C. Reagan-National Airport to Ottawa on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Air Canada.
There is 1 airport in Ottawa. From Washington, D.C. Reagan-National Airport there are direct flights to Ottawa (YOW).
Search flight deals

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

    There are 458.3 mi between Washington, D.C. Reagan-National and Ottawa. Flights usually cover this in 1h 31m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Ottawa Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,099 reviews
Search United Airlines flights
Air CanadaPriceFrom $236Free CancellationRating
7.1
10,549 reviews
Search Air Canada flights

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

    United Airlines operates around 4 flights from Washington, D.C. Reagan-National Airport to Ottawa every week. The average price of these flights found in the last 72 hours has been $531, but momondo users have found United Airlines deals from Washington, D.C. Reagan-National Airport to Ottawa from as low as $218 round-trip. United Airlines has been scored 7.4/10 in 9,099 reviews.

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

    Air Canada (7.1/10 from 10,549 reviews) operates around 4 flights from Washington, D.C. Reagan-National Airport to Ottawa in any given week. The average Air Canada airfare for this route is around $445, with deals from around $236 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. Reagan-National Airport to Ottawa flight searches in the last 72 hours.

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Brockville
Calabogie
Petawawa
Smiths Falls
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

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 Washington, D.C. to Ottawa for you.

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

Flights from Washington, D.C. to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from Washington, D.C..

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

Of course. momondo tracks the price of Washington, D.C. to Ottawa flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ottawa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 1/20
Tue 1/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada