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$57+ Cheap flights from Seattle (SEA) to Canada

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
ag. 18 — ag. 251
dl. 8/18
dl. 8/25
1 adult, Economy
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Cheap flight deals from Seattle to Canada

Keep the following information in mind while searching for Seattle to Canada flight deals. Data was last updated agost 13, 2025.

Round-trip from

$138
(Kiwi.com)

One-way from

$57
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$471

Good round-trip deal

$204 or less

Good one-way deal

$111 or less
From Seattle/Tacoma Intl to Canada
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One-way flight from Seattle/Tacoma Intl to Canada
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Highest demand for flights based on searches. 13% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Canada.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Canada.
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Find flight deals from Seattle to Canada

Cheapest flights from Seattle to Canada
Explore the most affordable flight options available from Seattle to Canada. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agost 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
dv. 9/261:15 pmSEA - YEG
Nonstop2h 14mWestJet
dl. 9/299:30 amYEG - SEA
1 stop4h 29mWestJet
Deal found 8/10$143
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
dv. 9/261:15 pmSEA - YEG
Nonstop2h 14mWestJet
dv. 10/39:30 amYEG - SEA
1 stop4h 29mWestJet
Deal found 8/12$145
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 10/178:40 amSEA - YEG
1 stop4h 17mWestJet
dl. 10/204:00 pmYEG - SEA
1 stop5h 29mWestJet
Deal found 8/13$149
This Trip.com deal was found by Cheapflights users on 8/13. 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.
dv. 9/121:15 pmSEA - YEG
Nonstop2h 14mMultiple Airlines
dv. 9/195:17 pmYEG - SEA
Nonstop1h 55mMultiple Airlines
Deal found 8/13$150
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
dl. 9/88:40 amSEA - YEG
1 stop4h 17mWestJet
dl. 9/154:00 pmYEG - SEA
1 stop5h 29mWestJet
Deal found 8/11$153
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
dc. 10/81:50 pmSEA - YEG
1 stop4h 37mWestJet
dg. 10/124:00 pmYEG - SEA
1 stop5h 29mWestJet
Deal found 8/12$154
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
dt. 9/92:05 pmSEA - YEG
1 stop6h 07mWestJet
dt. 9/169:30 amYEG - SEA
1 stop4h 29mWestJet
Deal found 8/12$156
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
dc. 9/108:00 amSEA - YEG
Nonstop1h 54mMultiple Airlines
dc. 9/174:00 pmYEG - SEA
1 stop5h 29mMultiple Airlines
Deal found 8/11$157
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
dv. 9/128:40 amSEA - YEG
1 stop4h 17mMultiple Airlines
dl. 9/155:17 pmYEG - SEA
Nonstop1h 55mMultiple Airlines
Deal found 8/12$159
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
dl. 9/88:40 amSEA - YEG
1 stop4h 17mMultiple Airlines
dl. 9/155:17 pmYEG - SEA
Nonstop1h 55mMultiple Airlines
Deal found 8/11$160
This Air Canada deal was found by Cheapflights users on 8/12. 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.
dt. 9/95:30 amSEA - YEG
1 stop5h 30mAir Canada
dt. 9/1610:50 amYEG - SEA
2 stops8h 46mAir Canada
Deal found 8/12$161
This CheapTickets deal was found by Cheapflights users on 8/11. 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 CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dt. 9/237:05 amSEA - YVR
1 stop5h 31mWestJet
dt. 9/307:00 amYVR - SEA
1 stop5h 59mWestJet
Deal found 8/11$163

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Canada 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 agost 13, 2025.
Use the filters below to find and compare flights from Seattle to Canada that are best for you.

Fly from

Seattle

Fly to

Canada

Route

Depart

Return

Price

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dv. 10/3

1:15 pm-4:20 pm

Nonstop2h 05m

Edmonton

dg. 10/5

11:20 am-12:33 pm

Nonstop2h 13m

$138

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dv. 9/26

1:15 pm-4:29 pm

Nonstop2h 14m

Edmonton

dl. 9/29

9:30 am-12:59 pm

1 stop4h 29m

$143

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dv. 9/26

1:15 pm-4:29 pm

Nonstop2h 14m

Edmonton

dv. 10/3

9:30 am-12:59 pm

1 stop4h 29m

$145

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dv. 9/12

1:15 pm-4:29 pm

Nonstop2h 14m

Edmonton

dv. 9/19

5:17 pm-6:12 pm

Nonstop1h 55m

$148

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dv. 10/17

8:40 am-1:57 pm

1 stop4h 17m

Edmonton

dl. 10/20

4:00 pm-8:29 pm

1 stop5h 29m

$149

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dc. 10/8

1:50 pm-7:27 pm

1 stop4h 37m

Edmonton

dg. 10/12

11:20 am-12:33 pm

Nonstop2h 13m

$150

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dc. 9/10

8:40 am-2:57 pm

1 stop5h 17m

Edmonton

dc. 9/17

4:00 pm-8:29 pm

1 stop5h 29m

$151

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dc. 10/8

7:55 am-10:46 am

Nonstop1h 51m

Edmonton

dg. 10/12

11:20 am-12:33 pm

Nonstop2h 13m

$152

SeattleEdmonton

SEA - YEG

SEAYEG

Seattle/Tacoma Intl

dj. 9/25

8:40 am-1:57 pm

1 stop4h 17m

Edmonton

dj. 10/2

4:00 pm-7:14 pm

1 stop4h 14m

$152

SeattleVancouver

SEA - YVR

SEAYVR

Seattle/Tacoma Intl

dt. 9/23

7:05 am-12:36 pm

1 stop5h 31m

Vancouver Intl

dt. 9/30

7:00 am-12:59 pm

1 stop5h 59m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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

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

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Canada (average of $243). Flying from Seattle to Canada in August is currently the most expensive (average of $348). 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 SEA to CA?

Find hourly flight availability from Seattle to Canada. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agost 13, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Canada as you normally would.

Weekly flight availability from Seattle to Canada

Explore weekly flight availability from Seattle to Canada. 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 agost 13, 2025.

The most flights from SEA to CA0 are scheduled on a Thursday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Canada

Get insights into the airlines that provide service to Canada. 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 Canada. Reviews last updated agost 13, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Seattle to Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,920 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
WestJet
7.2
Good
3,013 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Air Canada
7.1
Good
9,943 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Comfort

7.8

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

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

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

    When deciding which route to take from Seattle to Canada consider Seattle/Tacoma Intl - Toronto Pearson Intl, Seattle/Tacoma Intl - Calgary or Seattle/Tacoma Intl - Vancouver Intl as they are the most popular.

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

    Consider Qatar Airways (97%), Alaska Airlines (95%) or Hawaiian Airlines (95%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Canada.

  • What are the cheapest flights from Seattle to Canada?

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Seattle/Tacoma Intl - Toronto Pearson Intl) can be booked for $260 on average our data indicates $859 when flying from Seattle to Canada.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Seattle to Canada (average of $243). Flying from Seattle to Canada in August is currently the most expensive (average of $348). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Canada

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Seattle to Canada

Discover the top 7 airlines that operate flights from Seattle to Canada. 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 agost 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$85Average$410FlexibilityNo cancel feeOn-time67%
DeltaCheapest$98Average$404FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$113Average$360FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$120Average$484FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$204Average$376FlexibilityNo cancel feeOn-time75%
Harbour Air SeaplanesCheapest$204Average$289FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$465Average$668FlexibilityNo cancel feeOn-time71%

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