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$80+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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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 September 16, 2025.

Round-trip from

$136
(Trip.com)

One-way from

$80
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$396

Good round-trip deal

$263 or less

Good one-way deal

$109 or less
From Canada to Seattle/Tacoma Intl
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One-way flight from Canada to Seattle/Tacoma Intl
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High demand for flights, 7% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Canada to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Canada to Seattle/Tacoma Intl.
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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 September 16, 2025.

This Trip.com deal was found by Cheapflights users on 9/14. 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 10/257:00 amYLW - SEA
1 stop5h 59mWestJet
Sun 10/2611:55 amSEA - YLW
Nonstop1h 20mWestJet
Deal found 9/14$136
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/227:00 amYVR - SEA
1 stop5h 59mWestJet
Fri 10/241:50 pmSEA - YVR
1 stop6h 46mWestJet
Deal found 9/14$137
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/183:50 pmYYC - SEA
2 stops7h 41mAir Canada
Sun 10/195:30 amSEA - YYC
2 stops8h 30mAir Canada
Deal found 9/16$137
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:00 pmYEG - SEA
1 stop4h 21mWestJet
Thu 10/238:40 amSEA - YEG
1 stop5h 17mWestJet
Deal found 9/16$137
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/226:00 amYVR - SEA
1 stop6h 59mWestJet
Sat 10/251:50 pmSEA - YVR
1 stop6h 46mWestJet
Deal found 9/14$138
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 11/51:25 pmYYC - SEA
Nonstop1h 55mWestJet
Sat 11/1511:55 amSEA - YYC
1 stop4h 20mWestJet
Deal found 9/14$138
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:00 amYVR - SEA
1 stop5h 59mWestJet
Sun 10/198:40 amSEA - YVR
2 stops7h 31mWestJet
Deal found 9/15$141
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/291:25 pmYYC - SEA
Nonstop1h 55mWestJet
Wed 11/53:10 pmSEA - YYC
Nonstop1h 40mWestJet
Deal found 9/14$141
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:10 pmYVR - SEA
Nonstop1h 06mAir Canada
Mon 10/205:30 amSEA - YVR
Nonstop1h 10mAir Canada
Deal found 9/15$142
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:30 amYEG - SEA
1 stop4h 29mWestJet
Mon 10/208:40 amSEA - YEG
1 stop4h 17mWestJet
Deal found 9/15$142
This Trip.com deal was found by Cheapflights users on 9/13. 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 9/2912:00 pmYVR - SEA
2 stops8h 29mWestJet
Tue 9/307:05 amSEA - YVR
1 stop4h 33mWestJet
Deal found 9/13$143
This FlightHub deal was found by Cheapflights users on 9/14. 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 10/2312:05 pmYYC - SEA
Nonstop1h 54mWestJet
Sat 11/13:20 pmSEA - YYC
Nonstop1h 54mWestJet
Deal found 9/14$143

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 September 16, 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

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 10/31

7:50 am-10:25 am

1 stop3h 35m

Seattle/Tacoma Intl

Fri 11/7

11:55 am-6:15 pm

1 stop5h 20m

$140

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Tue 10/21

12:30 pm-7:21 pm

1 stop6h 51m

Seattle/Tacoma Intl

Fri 10/24

1:50 pm-7:13 pm

1 stop5h 23m

$143

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 11/12

1:25 pm-2:20 pm

Nonstop1h 55m

Seattle/Tacoma Intl

Thu 11/13

3:10 pm-5:50 pm

Nonstop1h 40m

$145

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 2/11

8:50 am-9:59 am

Nonstop1h 09m

Seattle/Tacoma Intl

Tue 3/10

7:50 pm-9:04 pm

Nonstop1h 14m

$152

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Mon 10/20

6:10 am-9:21 am

1 stop4h 11m

Seattle/Tacoma Intl

Thu 10/23

7:15 pm-12:42 am

1 stop4h 27m

$153

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 10/3

7:30 pm-8:37 pm

Nonstop1h 07m

Seattle/Tacoma Intl

Sun 10/5

8:42 am-9:38 am

Nonstop0h 56m

$154

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Mon 10/13

6:00 am-7:11 am

Nonstop1h 11m

Seattle/Tacoma Intl

Fri 10/24

11:39 am-12:48 pm

Nonstop1h 09m

$154

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 10/22

10:30 am-11:38 am

Nonstop1h 08m

Seattle/Tacoma Intl

Fri 10/24

8:42 am-9:38 am

Nonstop0h 56m

$154

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Mon 9/29

9:10 pm-10:16 pm

Nonstop1h 06m

Seattle/Tacoma Intl

Tue 9/30

7:15 pm-8:21 pm

Nonstop1h 06m

$155

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 10/22

6:00 am-12:59 pm

2 stops6h 59m

Seattle/Tacoma Intl

Fri 10/24

1:50 pm-6:36 pm

1 stop4h 46m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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, January is the cheapest month in which you can book a flight from Canada to Seattle (average of $238). Flying from Canada to Seattle in June is currently the most expensive (average of $387). 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 September 16, 2025.

When flying from Canada to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 16, 2025.

The most flights from CA0 to SEA are scheduled on a Tuesday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 September 16, 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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
8.0
Very good
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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
3,093 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

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 $152, WestJet can have you in Seattle from Canada in 1h 09m. Canada and Seattle are separated by a distance of 219 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 $85. Alaska Airlines flights start at $96 while deals on Air Canada start at $96 one-way.

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

    The most popular route from Canada to Seattle is Toronto Pearson Intl - Seattle/Tacoma Intl. You may also consider Vancouver 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 Alaska Airlines (93%), Hawaiian Airlines (93%) and Air Tahiti Nui (89%).

  • What are the cheapest flights from Canada to Seattle?

    On average you can expect to pay $419 for a flight from Canada to Seattle. The cheapest flight overall is $147 while the most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl) is currently priced at $213.

  • 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, January is the cheapest month in which you can book a flight from Canada to Seattle (average of $238). Flying from Canada to Seattle in June is currently the most expensive (average of $387). 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
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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Alternative routes for Canada to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$88Average$337FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$92Average$441FlexibilityNo cancel feeOn-time69%
WestJetCheapest$122Average$360FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$185Average$341FlexibilityNo cancel feeOn-time75%
DeltaCheapest$215Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$277FlexibilityNo cancel feeOn-time71%

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