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$91+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$133
(Trip.com)

One-way from

$91
(Alaska Airlines)

Popular in

May

Cheapest in

February

Average price

$422

Good round-trip deal

$182 or less

Good one-way deal

$140 or less
Provider with most accurate pricing for Toronto (YTO)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Seattle/Tacoma Intl flights.
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From Canada to Seattle/Tacoma Intl
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One-way flight from Canada to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 13% potential increase in price ($59 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 April 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 April 1, 2025.

This Trip.com deal was found by Cheapflights users on 3/31. 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 7/261:05 pmYLW - SEA
Nonstop1h 04mWestJet
Mon 7/283:39 pmSEA - YLW
Nonstop1h 04mWestJet
Deal found 3/31$133
This Justfly.com deal was found by Cheapflights users on 3/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:35 pmYYC - SEA
Nonstop1h 53mWestJet
Mon 5/53:39 pmSEA - YYC
1 stop3h 56mWestJet
Deal found 3/31$142
This Air Canada deal was found by Cheapflights users on 3/31. 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.
Mon 7/216:15 amYYC - SEA
1 stop4h 06mAir Canada
Wed 7/237:15 pmSEA - YYC
1 stop4h 28mAir Canada
Deal found 3/31$166
This Trip.com deal was found by Cheapflights users on 3/30. 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 5/119:00 amYVR - SEA
1 stop5h 09mWestJet
Sun 5/183:39 pmSEA - YVR
1 stop3h 56mWestJet
Deal found 3/30$168
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/265:45 amYLW - SEA
1 stop3h 36mUnited Airlines
Mon 7/285:00 amSEA - YLW
2 stops17h 33mUnited Airlines
Deal found 3/31$173
This Mytrip deal was found by Cheapflights users on 3/31. 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.
Mon 4/283:55 pmYVR - SEA
1 stop19h 40mMultiple Airlines
Mon 5/58:56 pmSEA - YVR
1 stop25h 29mMultiple Airlines
Deal found 3/31$181
This Booking.com deal was found by Cheapflights users on 3/30. 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.
Tue 5/138:15 amYVR - SEA
Nonstop1h 03mAir Canada
Tue 5/205:35 amSEA - YVR
Nonstop1h 05mAir Canada
Deal found 3/30$184
This Expedia deal was found by Cheapflights users on 3/30. 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.
Wed 6/252:36 pmYLW - SEA
Nonstop1h 15mMultiple Airlines
Sat 6/283:39 pmSEA - YLW
Nonstop1h 04mMultiple Airlines
Deal found 3/30$185
This United Airlines deal was found by Cheapflights users on 3/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:49 pmYYC - SEA
1 stop6h 26mUnited Airlines
Mon 5/55:05 amSEA - YYC
1 stop6h 14mUnited Airlines
Deal found 3/31$197
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 4/256:00 amYVR - SEA
Nonstop1h 00mAlaska Airlines
Sun 4/278:37 amSEA - YVR
Nonstop1h 01mAlaska Airlines
Deal found 3/31$199
This CheapTicketsDeal deal was found by Cheapflights users on 3/30. 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 CheapTicketsDeal is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/91:34 pmYLW - SEA
Nonstop1h 16mHawaiian Airlines
Mon 5/1211:28 amSEA - YLW
Nonstop1h 16mHawaiian Airlines
Deal found 3/30$202
This Air Canada deal was found by Cheapflights users on 3/30. 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.
Tue 4/229:25 pmYLW - SEA
1 stop12h 28mAir Canada
Sun 4/275:45 amSEA - YLW
1 stop4h 42mAir Canada
Deal found 3/30$203

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 April 1, 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

Sat 7/26

1:05 pm-2:09 pm

Nonstop1h 04m

Seattle/Tacoma Intl

Mon 7/28

3:39 pm-4:43 pm

Nonstop1h 04m

$133

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 5/2

7:35 pm-8:28 pm

Nonstop1h 53m

Seattle/Tacoma Intl

Mon 5/5

3:39 pm-8:35 pm

1 stop3h 56m

$142

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Mon 7/21

6:15 am-9:21 am

1 stop4h 06m

Seattle/Tacoma Intl

Wed 7/23

7:15 pm-12:43 am

1 stop4h 28m

$166

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sun 5/11

9:00 am-2:09 pm

1 stop5h 09m

Seattle/Tacoma Intl

Sun 5/18

3:39 pm-7:35 pm

1 stop3h 56m

$168

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Sat 7/26

5:45 am-9:21 am

1 stop3h 36m

Seattle/Tacoma Intl

Mon 7/28

5:00 am-10:33 pm

2 stops17h 33m

$173

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Mon 4/28

3:55 pm-11:35 am

1 stop19h 40m

Seattle/Tacoma Intl

Mon 5/5

8:56 pm-10:25 pm

1 stop25h 29m

$181

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 5/13

8:15 am-9:18 am

Nonstop1h 03m

Seattle/Tacoma Intl

Tue 5/20

5:35 am-6:40 am

Nonstop1h 05m

$184

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 6/25

2:36 pm-3:51 pm

Nonstop1h 15m

Seattle/Tacoma Intl

Sat 6/28

3:39 pm-4:43 pm

Nonstop1h 04m

$185

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 4/30

3:49 pm-9:15 pm

1 stop6h 26m

Seattle/Tacoma Intl

Mon 5/5

5:05 am-12:19 pm

1 stop6h 14m

$197

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 4/25

6:00 am-7:00 am

Nonstop1h 00m

Seattle/Tacoma Intl

Sun 4/27

8:37 am-9:38 am

Nonstop1h 01m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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 July is currently the most expensive (average of $411). 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 April 1, 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 April 1, 2025.

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

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 April 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Canada to Seattle. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $91. WestJet flights start at $96 while deals on Hawaiian Airlines start at $98 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 Calgary - Seattle/Tacoma Intl or Vancouver Intl - 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 (100%), Qatar Airways (85%) and Alaska Airlines (85%).

  • 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 $154 while the most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl) is currently priced at $267.

  • 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 July is currently the most expensive (average of $411). 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 Canada?

Book flights to Canada if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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Alternative routes for Canada to Seattle

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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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$100Average$397FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$110Average$344FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$128Average$382FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$140Average$317FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$240Average$477FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$393Average$653FlexibilityNo cancel feeOn-time71%
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