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Cheap flights from Canada to Seattle from C$ 107

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 19/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
17 Dec — 24 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Canada to Seattle

Enter your travel dates to find the best prices.

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 17 November 2025.

Fri 5/129:00 a.m.YLW - SEA
Nonstop1h 22mWestJet
Sun 7/1211:55 a.m.SEA - YLW
Nonstop1h 20mWestJet
Deal found 16/11C$ 171
Tue 9/127:35 p.m.YVR - SEA
Nonstop1h 03mAlaska Airlines
Wed 10/127:54 p.m.SEA - YVR
Nonstop1h 01mAlaska Airlines
Deal found 16/11C$ 182
Fri 5/129:00 a.m.YLW - SEA
Nonstop1h 22mWestJet
Sat 6/1211:55 a.m.SEA - YLW
Nonstop1h 20mWestJet
Deal found 16/11C$ 185
Mon 1/129:00 a.m.YLW - SEA
Nonstop1h 22mWestJet
Mon 8/123:10 p.m.SEA - YLW
1 stop6h 40mWestJet
Deal found 16/11C$ 187
Mon 1/129:00 a.m.YLW - SEA
Nonstop1h 22mWestJet
Sun 7/1211:55 a.m.SEA - YLW
Nonstop1h 20mWestJet
Deal found 16/11C$ 189
Fri 12/129:00 a.m.YLW - SEA
Nonstop1h 22mWestJet
Mon 15/123:10 p.m.SEA - YLW
1 stop6h 40mWestJet
Deal found 15/11C$ 191
Wed 10/127:35 p.m.YVR - SEA
Nonstop1h 03mAlaska Airlines
Sat 13/1211:10 p.m.SEA - YVR
Nonstop1h 00mAlaska Airlines
Deal found 14/11C$ 192
Fri 5/125:20 a.m.YLW - SEA
1 stop4h 11mAir Canada
Sun 7/128:00 p.m.SEA - YLW
1 stop13h 39mAir Canada
Deal found 17/11C$ 198
Wed 31/129:45 p.m.YVR - SEA
Nonstop1h 01mAir Canada
Wed 7/18:00 p.m.SEA - YVR
Nonstop1h 07mAir Canada
Deal found 16/11C$ 199
Fri 5/125:20 a.m.YLW - SEA
1 stop4h 11mMultiple Airlines
Sun 7/1211:55 a.m.SEA - YLW
Nonstop1h 20mMultiple Airlines
Deal found 17/11C$ 201
Thu 11/127:35 p.m.YVR - SEA
Nonstop1h 03mAlaska Airlines
Mon 15/127:54 p.m.SEA - YVR
Nonstop1h 01mAlaska Airlines
Deal found 15/11C$ 202
Wed 3/128:50 a.m.YLW - SEA
1 stop5h 45mWestJet
Sun 7/1211:55 a.m.SEA - YLW
Nonstop1h 20mWestJet
Deal found 16/11C$ 209

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 17 November 2025.

Round-trip from

C$ 170

One-way from

C$ 107

Popular in

December

Cheapest in

February

Average price

C$ 499

Good round-trip deal

C$ 308 or less

Good one-way deal

C$ 168 or less
WestJet
  • WestJet
  • 28/1-4/2
  • 2 total stops
  • 12h 08m total
  • Canada to Seattle
Search Deals
WestJet
  • WestJet
  • 19/12
  • Nonstop
  • 1h 22m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 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 629,999 searches. Data last updated 17 November 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 12/12

9:00 a.m.-10:22 a.m.

Nonstop1h 22m

Seattle/Tacoma Intl

Mon 15/12

3:10 p.m.-9:50 p.m.

1 stop6h 40m

C$ 191

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 21/1

6:00 a.m.-7:15 a.m.

Nonstop1h 15m

Seattle/Tacoma Intl

Sat 24/1

11:24 a.m.-12:30 p.m.

Nonstop1h 06m

C$ 192

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 10/12

7:35 p.m.-8:38 p.m.

Nonstop1h 03m

Seattle/Tacoma Intl

Sat 13/12

11:10 p.m.-12:10 a.m.

Nonstop1h 00m

C$ 192

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Sun 18/1

4:07 p.m.-5:22 p.m.

Nonstop1h 15m

Seattle/Tacoma Intl

Tue 10/2

7:55 p.m.-9:14 p.m.

Nonstop1h 19m

C$ 198

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 28/1

8:00 a.m.-9:31 a.m.

Nonstop1h 31m

Seattle/Tacoma Intl

Wed 4/2

7:55 p.m.-9:14 p.m.

Nonstop1h 19m

C$ 202

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 8/4

8:50 a.m.-2:19 p.m.

1 stop5h 29m

Seattle/Tacoma Intl

Fri 10/4

11:55 a.m.-1:10 p.m.

Nonstop1h 15m

C$ 209

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Tue 5/5

4:10 p.m.-8:28 p.m.

1 stop4h 18m

Seattle/Tacoma Intl

Fri 8/5

3:35 p.m.-4:39 p.m.

Nonstop1h 04m

C$ 209

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Sat 11/4

9:05 a.m.-10:21 a.m.

Nonstop1h 16m

Seattle/Tacoma Intl

Tue 14/4

3:10 p.m.-9:48 p.m.

1 stop6h 38m

C$ 209

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 13/1

7:35 p.m.-8:39 p.m.

Nonstop1h 04m

Seattle/Tacoma Intl

Tue 20/1

7:55 p.m.-8:55 p.m.

Nonstop1h 00m

C$ 209

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 22/12

9:00 a.m.-10:22 a.m.

Nonstop1h 22m

Seattle/Tacoma Intl

Mon 29/12

11:55 a.m.-1:15 p.m.

Nonstop1h 20m

C$ 209

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/11

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 C$ 125). Flying from Canada to Seattle in January is currently the most expensive (average of C$ 209). 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 17 November 2025.

When flying from Canada to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 34% versus a flight at noon.

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 2 November 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. Sunday at noon 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 17 November 2025.

The most flights from CA0 to SEA are scheduled on a Sunday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 17 November 2025.
Check out reviews from past customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Canada to Seattle to help guide your decision. 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
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,309 reviews
Alaska Airlines
8.0
Very good
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,006 reviews
Alaska Airlines
8.0
Very good
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
United Airlines
7.4
Good
9,014 reviews
Alaska Airlines
8.0
Very good
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
WestJet
7.2
Good
3,163 reviews
Alaska Airlines
8.0
Very good
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Air Canada
7.1
Good
10,457 reviews
Alaska Airlines
8.0
Very good
11,309 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

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?

    If you book a flight to Seattle from Canada, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle.

  • How long is the flight from Canada to Seattle?

    Airlines like WestJet, Alaska Airlines, and Air Canada fly from Canada to Seattle in about 1h 15m. The time it takes to get you to your destination can typically vary by up to 5h 01m. Airlines will cover a distance of 204 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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 C$ 107. Alaska Airlines flights start at C$ 123 while deals on Air Canada start at C$ 174 one-way.

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

    Most travellers choose Toronto Pearson Intl - Seattle/Tacoma Intl, Vancouver Intl - Seattle/Tacoma Intl or Calgary - Seattle/Tacoma Intl when deciding on the best route from Canada to Seattle.

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

    Before booking your flight to Seattle from Canada, check out the most reliable airlines to get you to your destination on time: Air Tahiti Nui (89%), Hawaiian Airlines (83%), Alaska Airlines( 72%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 212. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 295 on average, our data indicates C$ 413 when flying from Canada to Seattle.

  • 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 C$ 125). Flying from Canada to Seattle in January is currently the most expensive (average of C$ 209). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Tukwila
Tacoma
Mukilteo
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood

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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 8 airlines flying from Canada to Seattle

Discover the top 8 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 629,999 searches. Data last updated 17 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 157AverageC$ 527FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 161AverageC$ 474FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 183AverageC$ 488FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 192AverageC$ 433FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 220AverageC$ 408FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 274AverageC$ 429FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Harbour Air SeaplanesCheapestC$ 309AverageC$ 381FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
American AirlinesCheapestC$ 463AverageC$ 568FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Canada to Seattle?

When you search for this flight from Canada to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Canada to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Canada to Seattle.

Can Cheapflights find flights from Canada to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Canada shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Canada to Seattle become cheaper?

Of course! You can now track prices for flights from Canada to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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