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Ottawa

$115+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YOW
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:10 pm
SEA
-
YOW
2 stops24h 13m
WestJet
Sun 4/195:40 am
YOW
-
SEA
2 stops11h 39m
WestJet
Deal found 1/28$306
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:10 pm
SEA
-
YOW
1 stop22h 43m
WestJet
Wed 3/45:40 am
YOW
-
SEA
2 stops11h 39m
WestJet
Deal found 1/28$313
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/93:10 pm
SEA
-
YOW
1 stop22h 43m
WestJet
Mon 3/165:45 pm
YOW
-
SEA
1 stop23h 34m
WestJet
Deal found 1/28$314
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/93:10 pm
SEA
-
YOW
2 stops24h 13m
WestJet
Sun 4/128:20 pm
YOW
-
SEA
1 stop20h 59m
WestJet
Deal found 1/28$321
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Tue 3/311:08 pm
SEA
-
YOW
1 stop12h 36m
Multiple Airlines
Thu 3/55:40 am
YOW
-
SEA
2 stops11h 39m
Multiple Airlines
Deal found 1/26$323
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/135:40 am
SEA
-
YOW
1 stop7h 05m
Air Canada
Fri 3/205:50 pm
YOW
-
SEA
1 stop8h 06m
Air Canada
Deal found 1/27$354
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sun 5/32:30 pm
PDX
-
YOW
1 stop21h 55m
Multiple Airlines
Mon 5/111:20 pm
YOW
-
PDX
2 stops23h 11m
Multiple Airlines
Deal found 1/28$509
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/136:00 am
PDX
-
YOW
2 stops15h 39m
Multiple Airlines
Fri 3/204:40 pm
YOW
-
PDX
1 stop19h 43m
Multiple Airlines
Deal found 1/27$516
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Sun 5/32:30 pm
PDX
-
YOW
1 stop21h 55m
WestJet
Mon 5/117:30 am
YOW
-
PDX
1 stop9h 20m
WestJet
Deal found 1/28$522
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Sat 6/132:30 pm
PDX
-
YOW
2 stops19h 00m
WestJet
Tue 6/236:00 am
YOW
-
PDX
1 stop10h 20m
WestJet
Deal found 1/27$532
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:00 pm
PDX
-
YOW
1 stop13h 55m
Multiple Airlines
Sun 8/237:00 am
YOW
-
PDX
2 stops12h 52m
Multiple Airlines
Deal found 1/27$605
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Tue 8/182:00 pm
PDX
-
YOW
1 stop7h 40m
WestJet
Sun 8/237:45 am
YOW
-
PDX
1 stop8h 35m
WestJet
Deal found 1/27$619

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$306
(oojo)

One-way from

$115
(oojo)

Popular in

December

Cheapest in

October

Average price

$539
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. 14% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

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

$306

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 2/25

3:10 pm-4:53 pm

1 stop22h 43m

Ottawa

Wed 3/4

5:40 am-2:19 pm

2 stops11h 39m

$313

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 3/9

3:10 pm-4:53 pm

1 stop22h 43m

Ottawa

Mon 3/16

5:45 pm-2:19 pm

1 stop23h 34m

$314

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 3/3

11:08 pm-2:44 pm

1 stop12h 36m

Ottawa

Thu 3/5

5:40 am-2:19 pm

2 stops11h 39m

$323

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/9

3:10 pm-4:53 pm

1 stop22h 43m

Ottawa

Sun 4/12

5:45 pm-2:19 pm

1 stop23h 34m

$337

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 3/13

5:40 am-3:45 pm

1 stop7h 05m

Ottawa

Fri 3/20

2:05 pm-10:56 pm

2 stops11h 51m

$359

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 2/28

5:50 am-3:45 pm

1 stop6h 55m

Ottawa

Tue 3/31

6:00 pm-11:03 pm

1 stop8h 03m

$407

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 5/3

2:30 pm-3:25 pm

1 stop21h 55m

Ottawa

Mon 5/11

1:20 pm-9:31 am

2 stops23h 11m

$509

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 3/13

6:00 am-12:39 am

2 stops15h 39m

Ottawa

Fri 3/20

4:40 pm-9:23 am

1 stop19h 43m

$516

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sun 5/3

2:30 pm-12:20 am

2 stops30h 50m

Ottawa

Mon 5/11

12:25 pm-1:50 pm

2 stops52h 25m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 19 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 $203). Flying from State of Washington to Ottawa in December is currently the most expensive (average of $552). 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.

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 fly from State of Washington to Ottawa in about 24h 13m. The time it takes to get you to your destination can typically vary by up to . The distance from State of Washington to Ottawa is about 2193 mi.

  • 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 $148 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 $203). Flying from State of Washington to Ottawa in December is currently the most expensive (average of $552). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$614FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$242Average$543FlexibilityNo cancel feeOn-time67%
WestJetCheapest$284Average$394FlexibilityNo cancel feeOn-time60%

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