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$81+ Cheap flights from Canada to Seattle (SEA)

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find flight deals from Canada to Seattle

Cheapest flights from Canada to Seattle
Explore the most affordable flight options available from Canada to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/58:50 amYLW - SEA
1 stop5h 30mWestJet
Sun 12/73:10 pmSEA - YLW
1 stop6h 40mWestJet
Deal found 11/5$122
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/58:50 amYLW - SEA
1 stop5h 30mWestJet
Fri 12/1211:55 amSEA - YLW
Nonstop1h 20mWestJet
Deal found 11/5$128
This SmartFares deal was found by Cheapflights users on 11/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amYVR - SEA
Nonstop1h 02mAlaska Airlines
Sun 11/3011:10 pmSEA - YVR
Nonstop1h 00mAlaska Airlines
Deal found 11/5$131
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/48:50 amYLW - SEA
1 stop5h 30mWestJet
Fri 12/53:10 pmSEA - YLW
1 stop6h 40mWestJet
Deal found 11/5$133
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/59:00 amYLW - SEA
Nonstop1h 22mWestJet
Sat 12/63:20 pmSEA - YLW
1 stop6h 30mWestJet
Deal found 11/5$135
This Trip.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/309:00 amYLW - SEA
Nonstop1h 22mWestJet
Fri 12/53:10 pmSEA - YLW
1 stop6h 40mWestJet
Deal found 11/4$136
This Trip.com deal was found by Cheapflights users on 11/6. 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.
Sat 11/297:35 pmYVR - SEA
Nonstop1h 03mAlaska Airlines
Sun 11/3011:10 pmSEA - YVR
Nonstop1h 00mAlaska Airlines
Deal found 11/6$144
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:57 pmYLW - SEA
Nonstop1h 18mAlaska Airlines
Sun 11/301:50 pmSEA - YLW
Nonstop1h 17mAlaska Airlines
Deal found 11/5$144
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/55:35 pmYLW - SEA
Nonstop1h 20mMultiple Airlines
Sun 12/73:10 pmSEA - YLW
1 stop6h 40mMultiple Airlines
Deal found 11/5$145
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/45:35 pmYLW - SEA
Nonstop1h 20mMultiple Airlines
Sat 12/611:55 amSEA - YLW
Nonstop1h 20mMultiple Airlines
Deal found 11/5$146
This Trip.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/55:35 pmYLW - SEA
Nonstop1h 20mMultiple Airlines
Sat 12/611:55 amSEA - YLW
Nonstop1h 20mMultiple Airlines
Deal found 11/5$147
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amYVR - SEA
Nonstop1h 02mAlaska Airlines
Mon 12/15:46 pmSEA - YVR
Nonstop0h 59mAlaska Airlines
Deal found 11/6$150

Cheap flight deals from Canada to Seattle

Keep the following information in mind while searching for Canada to Seattle flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$122
(Kiwi.com)

One-way from

$81
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$326

Good round-trip deal

$240 or less

Good one-way deal

$184 or less
Provider with most accurate pricing for Toronto (YTO)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Seattle/Tacoma Intl flights.
Search Deals
From Canada to Seattle/Tacoma Intl
Search Deals
One-way flight from Canada to Seattle/Tacoma Intl
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Canada to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Canada to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada to Seattle 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 November 6, 2025.
Use the filters below to find and compare flights from Canada to Seattle that are best for you.

Fly from

Canada

Fly to

Seattle

Route

Depart

Return

Price

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Fri 12/5

8:50 am-2:20 pm

1 stop5h 30m

Seattle/Tacoma Intl

Sat 12/6

11:55 am-1:15 pm

Nonstop1h 20m

$127

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Fri 12/5

8:50 am-2:20 pm

1 stop5h 30m

Seattle/Tacoma Intl

Sun 12/7

11:55 am-1:15 pm

Nonstop1h 20m

$127

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Sun 11/30

9:00 am-10:22 am

Nonstop1h 22m

Seattle/Tacoma Intl

Fri 12/5

3:10 pm-9:50 pm

1 stop6h 40m

$136

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 11/26

3:57 pm-5:15 pm

Nonstop1h 18m

Seattle/Tacoma Intl

Sun 11/30

1:50 pm-3:07 pm

Nonstop1h 17m

$144

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Thu 12/4

5:35 pm-6:55 pm

Nonstop1h 20m

Seattle/Tacoma Intl

Sat 12/6

11:55 am-1:15 pm

Nonstop1h 20m

$146

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Fri 12/5

5:35 pm-6:55 pm

Nonstop1h 20m

Seattle/Tacoma Intl

Fri 12/12

11:55 am-1:15 pm

Nonstop1h 20m

$147

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 12/20

8:30 am-9:31 am

Nonstop1h 01m

Seattle/Tacoma Intl

Sat 12/27

5:50 am-6:57 am

Nonstop1h 07m

$149

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 1/10

5:45 pm-6:49 pm

Nonstop1h 04m

Seattle/Tacoma Intl

Thu 1/15

11:05 pm-12:10 am

Nonstop1h 05m

$149

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 1/14

1:20 pm-2:34 pm

Nonstop1h 14m

Seattle/Tacoma Intl

Thu 1/15

5:45 pm-6:45 pm

Nonstop1h 00m

$149

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sun 1/18

7:35 pm-8:39 pm

Nonstop1h 04m

Seattle/Tacoma Intl

Tue 1/20

7:55 pm-8:55 pm

Nonstop1h 00m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 60 results
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Best time to book a flight from Canada to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Canada 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 Canada to Seattle

What is the cheapest month to book a flight from Canada to Seattle?

Currently, November is the cheapest month in which you can book a flight from Canada to Seattle (average of $89). Flying from Canada to Seattle in January is currently the most expensive (average of $146). 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 CA to SEA?

Find hourly flight availability from Canada to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 38% on flights from Canada to Seattle by exploring options for tickets in the evening.

What is the cheapest day to fly from Canada to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Canada to Seattle. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Canada to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Canada to Seattle

Explore weekly flight availability from Canada to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 6, 2025.

The most flights from CA0 to SEA are scheduled on a Thursday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated November 6, 2025.
Read through reviews of airlines operating flights from Canada to Seattle, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,246 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
8,001 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
9,007 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
WestJet
7.2
Good
3,155 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Air Canada
7.1
Good
10,416 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Canada to Seattle. 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 Seattle from Canada?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Seattle from Canada.

  • How long is the flight from Canada to Seattle?

    For as low as $149, WestJet can have you in Seattle from Canada in 1h 01m. Canada and Seattle are separated by a distance of 127 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Canada to Seattle one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $81. Alaska Airlines flights start at $93 while deals on Air Canada start at $98 one-way.

  • What are the most popular routes from Canada to Seattle?

    The most popular route from Canada to Seattle is Vancouver Intl - Seattle/Tacoma Intl. You may also consider Toronto Pearson Intl - Seattle/Tacoma Intl or Calgary - Seattle/Tacoma Intl.

  • What are the most reliable airlines from Canada to Seattle?

    The top 3 most reliable airlines when flying from Canada to Seattle are Air Tahiti Nui (91%), Hawaiian Airlines (87%) and Alaska Airlines (75%).

  • What are the cheapest flights from Canada to Seattle?

    On average you can expect to pay $350 for a flight from Canada to Seattle. The cheapest flight overall is $159 while the most popular route, (Vancouver Intl - Seattle/Tacoma Intl) is currently priced at $150.

  • Can I find deals for flights from Canada to Seattle that include hotel bookings?

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

  • How can I find direct flights from Canada to Seattle?

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

  • Can I find deals for business class flights from Canada to Seattle?

    Yes. Cheapflights offers flight deals from Canada to Seattle 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 Canada to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Canada to Seattle (average of $89). Flying from Canada to Seattle in January is currently the most expensive (average of $146). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Tukwila
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Cle Elum
Marysville
Puyallup
Federal Way
Fife
Issaquah
Aberdeen

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Top 6 airlines flying from Canada to Seattle

Discover the top 6 airlines that operate flights from Canada to Seattle. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$77Average$343FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$92Average$504FlexibilityNo cancel feeOn-time69%
WestJetCheapest$127Average$359FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$174Average$352FlexibilityNo cancel feeOn-time75%
DeltaCheapest$215Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$277FlexibilityNo cancel feeOn-time71%

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