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$150+ Cheap flights from Washington to Ottawa (YOW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Washington to Ottawa

Cheapest flights from Washington to Ottawa
Explore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This FlightHub deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:25 amSEA - YOW
2 stops12h 17mWestJet
Sun 12/285:40 amYOW - SEA
2 stops28h 40mWestJet
Deal found 12/16$912
This FlightHub deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:45 pmSEA - YOW
2 stops25h 55mWestJet
Sun 12/285:40 amYOW - SEA
2 stops31h 24mWestJet
Deal found 12/16$965
This FlightHub deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:32 amSEA - YOW
2 stops12h 10mWestJet
Sun 12/216:00 amYOW - SEA
2 stops13h 45mWestJet
Deal found 12/16$1,016
This Air Canada deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:50 amPDX - YOW
2 stops12h 48mAir Canada
Mon 12/296:00 amYOW - PDX
2 stops11h 40mAir Canada
Deal found 12/15$1,024
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:10 pmSEA - YOW
1 stop12h 34mMultiple Airlines
Sun 12/286:45 amYOW - SEA
2 stops27h 35mMultiple Airlines
Deal found 12/16$1,067
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:45 pmSEA - YOW
1 stop21h 20mMultiple Airlines
Sun 12/286:55 pmYOW - SEA
2 stops15h 25mMultiple Airlines
Deal found 12/16$1,099
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2010:52 pmPDX - YOW
1 stop17h 00mUnited Airlines
Sat 12/276:00 amYOW - PDX
2 stops19h 59mUnited Airlines
Deal found 12/15$1,220
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:00 amSEA - YOW
1 stop12h 54mUnited Airlines
Sun 12/217:27 pmYOW - SEA
1 stop19h 00mUnited Airlines
Deal found 12/16$1,266
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:14 amSEA - YOW
2 stops11h 42mAmerican Airlines
Sun 12/289:10 amYOW - SEA
3 stops15h 00mAmerican Airlines
Deal found 12/16$1,638
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1812:13 amSEA - YOW
3 stops15h 12mAmerican Airlines
Sun 12/219:10 amYOW - SEA
2 stops16h 57mAmerican Airlines
Deal found 12/16$1,682

Find flight deals from Washington to Ottawa

Keep the following information in mind while searching for Washington to Ottawa flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(Kiwi.com)

One-way from

$150
(Air Canada)

Popular in

December

Cheapest in

October

Average price

$728
Provider with most accurate pricing for Seattle/Tacoma Intl-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Ottawa flights.
Search Deals
From Washington to Ottawa
Search Deals
One-way flight from Washington to Ottawa
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
Use the filters below to find and compare flights from Washington to Ottawa that are best for you.

Fly from

Washington

Fly to

Ottawa

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 1/21

3:10 pm-4:53 pm

1 stop22h 43m

Ottawa

Wed 1/28

5:40 am-2:20 pm

2 stops11h 40m

$259

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/16

3:10 pm-6:23 pm

2 stops24h 13m

Ottawa

Sun 4/19

5:40 am-2:19 pm

2 stops11h 39m

$271

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 1/21

11:05 pm-2:45 pm

1 stop12h 40m

Ottawa

Wed 1/28

5:40 am-2:20 pm

2 stops35h 40m

$303

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 1/13

11:05 pm-2:45 pm

1 stop12h 40m

Ottawa

Tue 1/20

5:40 am-7:17 pm

1 stop16h 37m

$318

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 1/10

11:05 pm-2:45 pm

1 stop12h 40m

Ottawa

Sat 1/17

5:40 am-9:36 am

2 stops30h 56m

$330

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 1/10

11:05 pm-2:45 pm

1 stop12h 40m

Ottawa

Thu 1/15

5:40 am-9:36 am

2 stops30h 56m

$330

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 1/31

5:32 pm-8:00 pm

2 stops47h 28m

Ottawa

Sat 2/7

10:35 am-8:50 pm

1 stop13h 15m

$463

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 1/15

11:59 pm-5:12 pm

1 stop14h 13m

Ottawa

Sun 1/18

6:20 am-2:48 pm

2 stops11h 28m

$557

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 2/12

7:05 pm-6:43 am

1 stop8h 38m

Ottawa

Sun 2/15

7:45 am-2:40 pm

1 stop9h 55m

$570

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Mon 1/19

7:00 am-5:12 pm

1 stop7h 12m

Ottawa

Wed 1/21

3:10 pm-9:49 pm

1 stop9h 39m

$574

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 18 results
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Best time to book a flight from Washington to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Ottawa

What is the cheapest month to book a flight from State of Washington to Ottawa?

Currently, May is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of $214). Flying from State of Washington to Ottawa in December is currently the most expensive (average of $543). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to YOW?

Find hourly flight availability from Washington to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 58% on flights from State of Washington to Ottawa by exploring options for tickets in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from Washington to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ottawa from Washington?

    Most people fly into Ottawa (YOW) if they book a flight to Ottawa from Washington. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

  • How long is the flight from State of Washington to Ottawa?

    Airlines like WestJet, United Airlines, and Air Canada fly from State of Washington to Ottawa in about 8h 38m. The time it takes to get you to your destination can typically vary by up to 14h 05m. The distance from State of Washington to Ottawa is about 2240 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Ottawa one-way?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $130. Users have also found prices from $150 and $199 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from State of Washington to Ottawa?

    Most travelers choose Seattle/Tacoma Intl - Ottawa, Portland - Ottawa or Bellingham - Ottawa when deciding on the best route from State of Washington to Ottawa.

  • Can I find deals for flights from Washington to Ottawa that include hotel bookings?

    Yes. In addition to deals on Washington to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Ottawa.

  • Can I find deals for business class flights from Washington to Ottawa?

    Yes. Cheapflights offers flight deals from Washington to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Ottawa?

    Currently, May is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of $214). Flying from State of Washington to Ottawa in December is currently the most expensive (average of $543). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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Alternative routes for Washington to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Washington to Ottawa

Discover the top 3 airlines that operate flights from Washington to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$257Average$540FlexibilityNo cancel feeOn-time67%
WestJetCheapest$286Average$394FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$362Average$646FlexibilityNo cancel feeOn-time69%

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