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Cheap flights from Washington, D.C. to Ottawa from $119

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. to Ottawa departing on 12/6. 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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0 bags

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Find the cheapest flights from Washington, D.C. to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:40 am - 11:58 pmBWI-YOW
13h 18m1 stop
Multiple Airlines Logo
7:00 am - 8:29 amYOW-BWI
25h 29m3 stops
$225Multiple Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
8:20 am - 12:25 amBWI-YOW
16h 05m1 stop
Multiple Airlines Logo
7:00 am - 8:29 amYOW-BWI
25h 29m3 stops
$238Multiple Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 14
Porter Airlines Logo
6:30 pm - 10:29 pmIAD-YOW
3h 59m1 stop
Porter Airlines Logo
6:50 am - 10:24 amYOW-IAD
3h 34m1 stop
$316Porter Airlines
Find Deal
Tue, Nov 11 - Fri, Nov 14
Porter Airlines Logo
1:45 pm - 5:29 pmIAD-YOW
3h 44m1 stop
Porter Airlines Logo
8:40 am - 12:29 pmYOW-IAD
3h 49m1 stop
$323Porter Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
Air Canada Logo
12:55 pm - 2:30 pmDCA-YOW
1h 35mnonstop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$382Air Canada
Find Deal
Thu, Nov 13 - Sun, Nov 16
Air Canada Logo
11:05 am - 4:18 pmDCA-YOW
5h 13m1 stop
Air Canada Logo
10:30 am - 12:19 pmYOW-DCA
1h 49mnonstop
$384Air Canada
Find Deal
Thu, Nov 13 - Sun, Nov 16
United Airlines Logo
12:55 pm - 2:30 pmDCA-YOW
1h 35mnonstop
United Airlines Logo
5:14 pm - 11:59 pmYOW-DCA
6h 45m1 stop
$486United Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 19
American Airlines Logo
10:04 am - 4:49 pmDCA-YOW
6h 45m1 stop
American Airlines Logo
6:45 am - 12:33 pmYOW-DCA
5h 48m1 stop
$537American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
American Airlines Logo
10:04 am - 4:49 pmDCA-YOW
6h 45m1 stop
American Airlines Logo
6:45 am - 7:59 pmYOW-DCA
13h 14m2 stops
$548American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
12:55 pm - 2:30 pmDCA-YOW
1h 35mnonstop
United Airlines Logo
2:05 pm - 7:45 pmYOW-DCA
5h 40m1 stop
$594United Airlines
Find Deal
Fri, Nov 14 - Sat, Nov 15

Porter Airlines flights from Washington, D.C. to Ottawa

Our best Porter Airlines deals on Washington, D.C. to Ottawa flight tickets
Porter Airlines
Nov 11
IAD6:30 pmWashington, D.C. Dulles Intl
3h 59m
1 stop
YOW10:29 pmOttawa
Nov 14
YOW6:50 amOttawa
3h 34m
1 stop
IAD10:24 amWashington, D.C. Dulles Intl
$316
Find similar
Porter Airlines
Nov 15
IAD1:45 pmWashington, D.C. Dulles Intl
3h 44m
1 stop
YOW5:29 pmOttawa
Nov 22
YOW8:40 amOttawa
3h 49m
1 stop
IAD12:29 pmWashington, D.C. Dulles Intl
$323
Find similar
Porter Airlines
Nov 14
IAD11:40 amWashington, D.C. Dulles Intl
3h 24m
1 stop
YOW3:04 pmOttawa
Nov 18
YOW12:10 pmOttawa
5h 04m
1 stop
IAD5:14 pmWashington, D.C. Dulles Intl
$324
Find similar

Air Canada flights from Washington, D.C. to Ottawa

Our best Air Canada deals on Washington, D.C. to Ottawa flight tickets
Air Canada
Nov 13
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Nov 16
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$382
Find similar
Air Canada
Nov 13
DCA11:05 amWashington, D.C. Reagan-National
5h 13m
1 stop
YOW4:18 pmOttawa
Nov 16
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$384
Find similar
Air Canada
Dec 5
DCA12:55 pmWashington, D.C. Reagan-National
1h 35m
YOW2:30 pmOttawa
Dec 12
YOW10:30 amOttawa
1h 49m
DCA12:19 pmWashington, D.C. Reagan-National
$390
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 October 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 12/5

10:40 am-11:58 pm

1 stop13h 18m

Ottawa

Sun 12/7

7:00 am-8:29 am

3 stops25h 29m

$225

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 12/11

8:20 am-12:25 am

1 stop16h 05m

Ottawa

Sun 12/14

7:00 am-8:29 am

3 stops25h 29m

$238

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 11/11

6:30 pm-10:29 pm

1 stop3h 59m

Ottawa

Fri 11/14

6:50 am-10:24 am

1 stop3h 34m

$316

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 11/15

1:45 pm-5:29 pm

1 stop3h 44m

Ottawa

Sat 11/22

8:40 am-12:29 pm

1 stop3h 49m

$323

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 11/13

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Sun 11/16

10:30 am-12:19 pm

Nonstop1h 49m

$382

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 11/13

11:05 am-4:18 pm

1 stop5h 13m

Ottawa

Sun 11/16

10:30 am-12:19 pm

Nonstop1h 49m

$384

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 11/19

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Wed 11/19

5:14 pm-11:59 pm

1 stop6h 45m

$486

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 11/19

10:04 am-4:49 pm

1 stop6h 45m

Ottawa

Wed 11/26

6:45 am-12:33 pm

1 stop5h 48m

$537

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 11/19

10:04 am-4:49 pm

1 stop6h 45m

Ottawa

Wed 11/26

6:45 am-7:59 pm

2 stops13h 14m

$548

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 11/14

12:55 pm-2:30 pm

Nonstop1h 35m

Ottawa

Sat 11/15

2:05 pm-7:45 pm

1 stop5h 40m

$594

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ottawa from

How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Ottawa?

What is the cheapest month to fly to Ottawa?

In general, January is the cheapest month to fly from Washington, D.C. to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $257. The month of April is another great option to travel to Ottawa, with average flight prices from Washington, D.C. averaging around $344.

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

The cheapest day to depart from Washington, D.C. to Ottawa is on a Monday. Travelers who choose to depart for Ottawa on a Monday will often find tickets for as low as $423. 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 $502.

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. to Ottawa when you can find flight prices for as low as $446. 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 afternoon when prices are $639 on average. Flights to Ottawa from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

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

You could potentially save up to 30% on your flight if you consider stops on a Washington, D.C. to Ottawa flight.

How have Washington, D.C. to Ottawa flight prices changed over time?

As of October 2025, prices for Washington, D.C. to Ottawa flights are approximately 18% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Ottawa (WAS to YOW) flight deals and tips

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

Best Price Found

$187

Fastest flight time

1h 32m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. in the past 72 hours is $187. The best round-trip flight deal from Washington, D.C. to Ottawa found on momondo in the last 72 hours is $292.
The fastest flight from Washington, D.C. to Ottawa takes 1h 32m
Direct flights go from Washington, D.C. to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

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

    The straight-line distance from Washington, D.C. to Ottawa is 454.6 mi. 1h 35m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Ottawa Airport.

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

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Washington, D.C. to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom $179Free CancellationRating
8.0
382 reviews
Search Porter Airlines flights
Air CanadaPriceFrom $198Free CancellationRating
7.1
10,346 reviews
Search Air Canada flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights

  • United Airlines Flights From Washington, D.C. to Ottawa

    The lowest priced United Airlines flight from Washington, D.C. to Ottawa from the last 72 hours was $218. Generally, United Airlines has 15 flights on this route every week with an average price of $504. United Airlines is rated 7.4/10 by our users.

  • Air Canada Flights From Washington, D.C. to Ottawa

    Across 10,346 Air Canada reviews on momondo, the average score is 7.1/10. Air Canada flies from Washington, D.C. to Ottawa about 15 times each week, with ticket deals ranging from $198 to $461. Price data is based on momondo 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
Smiths Falls
Calabogie
Brockville
Petawawa
Pembroke
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.

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

All flight searches from Washington, D.C. to Ottawa on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Washington, D.C. to Ottawa 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 Washington, D.C. to Ottawa right now. Can momondo alert me if prices change?

Price alerts on flights to Ottawa from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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