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$51+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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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 November 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Fri 11/2811:55 amSEA - YLW
Nonstop1h 20mWestJet
Sun 11/309:00 amYLW - SEA
Nonstop1h 22mWestJet
Deal found 11/10$130
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Sat 11/2911:55 amSEA - YLW
Nonstop1h 20mWestJet
Sun 11/309:00 amYLW - SEA
Nonstop1h 22mWestJet
Deal found 11/10$131
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Sat 11/2211:55 amSEA - YLW
Nonstop1h 20mWestJet
Sun 11/239:00 amYLW - SEA
Nonstop1h 22mWestJet
Deal found 11/12$132
This Gotogate deal was found by Cheapflights users on 11/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/223:40 pmSEA - YLW
1 stop4h 34mAir Canada
Sun 11/2310:25 amYLW - SEA
1 stop4h 06mAir Canada
Deal found 11/12$139
This Booking.com deal was found by Cheapflights users on 11/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:50 amSEA - YVR
Nonstop1h 07mAir Canada
Sun 12/148:30 amYVR - SEA
Nonstop1h 01mAir Canada
Deal found 11/12$142
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Wed 12/103:10 pmSEA - YLW
1 stop6h 40mMultiple Airlines
Wed 12/175:35 pmYLW - SEA
Nonstop1h 20mMultiple Airlines
Deal found 11/12$144
This Booking.com deal was found by Cheapflights users on 11/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:55 amSEA - YLW
Nonstop1h 20mMultiple Airlines
Mon 12/81:25 pmYLW - SEA
1 stop5h 51mMultiple Airlines
Deal found 11/11$145
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:40 pmSEA - YLW
1 stop4h 29mAir Canada
Mon 12/81:25 pmYLW - SEA
1 stop5h 51mAir Canada
Deal found 11/11$147
This Gotogate deal was found by Cheapflights users on 11/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2211:55 amSEA - YLW
Nonstop1h 20mMultiple Airlines
Sun 11/235:20 amYLW - SEA
1 stop4h 11mMultiple Airlines
Deal found 11/12$149
This Trip.com deal was found by Cheapflights users on 11/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:40 pmSEA - YVR
Nonstop1h 07mMultiple Airlines
Sun 12/147:00 amYVR - SEA
1 stop3h 22mMultiple Airlines
Deal found 11/12$149
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Wed 12/103:10 pmSEA - YLW
1 stop6h 40mWestJet
Wed 12/1710:35 pmYLW - SEA
1 stop15h 45mWestJet
Deal found 11/12$152
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 12/511:55 amSEA - YLW
Nonstop1h 20mWestJet
Sun 12/79:00 amYLW - SEA
Nonstop1h 22mWestJet
Deal found 11/11$155

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 November 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$126
(Kiwi.com)

One-way from

$51
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$292

Good round-trip deal

$146 or less

Good one-way deal

$57 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Toronto (YTO) flights.
Search Deals
From Seattle/Tacoma Intl to Canada
Search Deals
One-way flight from Seattle/Tacoma Intl to Canada
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 Seattle/Tacoma Intl to Canada.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Canada.
Search Deals

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 November 12, 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

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Thu 1/22

3:10 pm-9:50 pm

1 stop6h 40m

Kelowna

Mon 1/26

8:50 am-2:20 pm

1 stop5h 30m

$128

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Fri 11/28

11:55 am-1:15 pm

Nonstop1h 20m

Kelowna

Sun 11/30

9:00 am-10:22 am

Nonstop1h 22m

$130

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Fri 12/5

3:10 pm-9:50 pm

1 stop6h 40m

Kelowna

Sun 12/7

9:00 am-10:22 am

Nonstop1h 22m

$130

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Thu 2/26

3:10 pm-9:48 pm

1 stop6h 38m

Kelowna

Sun 3/1

9:05 am-10:21 am

Nonstop1h 16m

$143

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Sat 12/6

3:40 pm-8:09 pm

1 stop4h 29m

Kelowna

Mon 12/8

1:25 pm-7:16 pm

1 stop5h 51m

$147

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Tue 1/27

3:10 pm-9:50 pm

1 stop6h 40m

Kelowna

Sat 1/31

9:05 am-10:23 am

Nonstop1h 18m

$153

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Thu 11/27

3:10 pm-9:50 pm

1 stop6h 40m

Kelowna

Sun 11/30

9:00 am-10:22 am

Nonstop1h 22m

$155

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Sat 1/31

11:55 am-1:15 pm

Nonstop1h 20m

Kelowna

Wed 2/4

8:50 am-2:19 pm

1 stop5h 29m

$157

SeattleVancouver

SEA - YVR

SEAYVR

Seattle/Tacoma Intl

Sat 12/6

7:54 pm-8:55 pm

Nonstop1h 01m

Vancouver Intl

Sun 12/14

7:00 am-10:22 am

1 stop3h 22m

$163

SeattleKelowna

SEA - YLW

SEAYLW

Seattle/Tacoma Intl

Fri 12/5

3:10 pm-9:50 pm

1 stop6h 40m

Kelowna

Fri 12/12

8:50 am-2:20 pm

1 stop5h 30m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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, July is the cheapest month in which you can book a flight from Seattle to Canada (average of $92). Flying from Seattle to Canada in November is currently the most expensive (average of $147). 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 November 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Canada in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the evening.

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

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

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

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 November 12, 2025.

The most flights from SEA to CA0 are scheduled on a Monday (6 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 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 November 12, 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
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,275 reviews
Alaska Airlines
8.0
Very good
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,015 reviews
Alaska Airlines
8.0
Very good
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
WestJet
7.2
Good
3,159 reviews
Alaska Airlines
8.0
Very good
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Air Canada
7.1
Good
10,443 reviews
Alaska Airlines
8.0
Very good
11,275 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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.

  • How long is the flight from Seattle to Canada?

    A quick flight from Seattle to Canada can take about 1h 06m. WestJet provides one of the quickest options available for as low as $175. The distance from Seattle to Canada is about 127 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $51. Alaska Airlines flights start at $64 while deals on Air Canada start at $68 one-way.

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

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

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

    Consider Alaska Airlines (98%), Qatar Airways (97%) or Hawaiian Airlines (96%) 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 $111. While the most popular route (Seattle/Tacoma Intl - Calgary) can be booked for $154 on average, our data indicates $704 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, July is the cheapest month in which you can book a flight from Seattle to Canada (average of $92). Flying from Seattle to Canada in November is currently the most expensive (average of $147). 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.

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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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$92Average$409FlexibilityNo cancel feeOn-time67%
DeltaCheapest$108Average$404FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$139Average$368FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$159Average$526FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$186Average$372FlexibilityNo cancel feeOn-time75%
Harbour Air SeaplanesCheapest$204Average$289FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$493Average$668FlexibilityNo cancel feeOn-time71%

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