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Cheap flights from Canada to Seattle from C$ 109

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 September 2025.

Round-trip from

C$ 188

One-way from

C$ 109

Popular in

December

Cheapest in

February

Average price

C$ 545

Good round-trip deal

C$ 219 or less

Good one-way deal

C$ 149 or less
Air Canada
  • Air Canada
  • 18/10-19/10
  • 4 total stops
  • 16h 11m total
  • Canada to Seattle
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WestJet
  • WestJet
  • 3/11
  • 1 total stop
  • 3h 23m total
  • Canada to Seattle
Search Deals
High demand for flights, 7% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
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 17 September 2025.

Sat 18/103:50 p.m.YYC - SEA
2 stops7h 41mAir Canada
Sun 19/105:30 a.m.SEA - YYC
2 stops8h 30mAir Canada
Deal found 16/9C$ 188
Tue 21/104:00 p.m.YEG - SEA
1 stop4h 21mWestJet
Thu 23/108:40 a.m.SEA - YEG
1 stop5h 17mWestJet
Deal found 16/9C$ 188
Wed 15/107:00 a.m.YVR - SEA
1 stop5h 59mWestJet
Wed 22/101:50 p.m.SEA - YVR
1 stop4h 46mWestJet
Deal found 15/9C$ 190
Wed 15/1012:05 p.m.YYC - SEA
Nonstop1h 54mWestJet
Sun 19/108:40 a.m.SEA - YYC
Nonstop1h 50mWestJet
Deal found 17/9C$ 191
Sat 18/104:00 p.m.YEG - SEA
1 stop4h 21mWestJet
Thu 23/101:50 p.m.SEA - YEG
1 stop6h 22mWestJet
Deal found 16/9C$ 191
Wed 26/118:50 a.m.YLW - SEA
1 stop5h 30mWestJet
Fri 28/1111:55 a.m.SEA - YLW
Nonstop1h 20mWestJet
Deal found 16/9C$ 193
Sat 18/104:00 p.m.YEG - SEA
1 stop4h 21mWestJet
Sun 19/108:40 a.m.SEA - YEG
1 stop4h 17mWestJet
Deal found 16/9C$ 193
Wed 15/107:00 a.m.YVR - SEA
1 stop5h 59mWestJet
Sun 19/108:40 a.m.SEA - YVR
2 stops7h 31mWestJet
Deal found 15/9C$ 194
Thu 16/101:10 p.m.YVR - SEA
Nonstop1h 06mAir Canada
Mon 20/105:30 a.m.SEA - YVR
Nonstop1h 10mAir Canada
Deal found 15/9C$ 195
Fri 14/117:00 a.m.YVR - SEA
1 stop3h 23mWestJet
Sat 13/123:20 p.m.SEA - YVR
2 stops7h 24mWestJet
Deal found 15/9C$ 197
Sun 12/106:00 a.m.YVR - SEA
1 stop6h 35mWestJet
Fri 17/101:50 p.m.SEA - YVR
1 stop5h 46mWestJet
Deal found 16/9C$ 198
Mon 17/117:50 a.m.YYC - SEA
1 stop3h 33mWestJet
Fri 21/1111:55 a.m.SEA - YYC
1 stop5h 20mWestJet
Deal found 16/9C$ 198

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 September 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

Wed 12/11

1:25 p.m.-2:20 p.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Thu 13/11

3:10 p.m.-5:50 p.m.

Nonstop1h 40m

C$ 199

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 17/1

7:00 a.m.-10:23 a.m.

1 stop3h 23m

Seattle/Tacoma Intl

Thu 22/1

5:40 p.m.-6:45 p.m.

Nonstop1h 05m

C$ 204

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Tue 4/11

1:25 p.m.-2:20 p.m.

Nonstop1h 55m

Seattle/Tacoma Intl

Fri 14/11

3:10 p.m.-5:50 p.m.

Nonstop1h 40m

C$ 204

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Mon 19/1

7:50 a.m.-10:23 a.m.

1 stop3h 33m

Seattle/Tacoma Intl

Thu 12/2

3:10 p.m.-5:50 p.m.

Nonstop1h 40m

C$ 204

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 15/10

10:30 a.m.-11:38 a.m.

Nonstop1h 08m

Seattle/Tacoma Intl

Wed 22/10

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

Nonstop1h 02m

C$ 208

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 16/10

1:48 p.m.-2:55 p.m.

Nonstop1h 07m

Seattle/Tacoma Intl

Sun 19/10

8:42 a.m.-9:38 a.m.

Nonstop0h 56m

C$ 208

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 18/10

3:50 p.m.-10:31 p.m.

2 stops7h 41m

Seattle/Tacoma Intl

Sun 19/10

8:40 a.m.-11:30 a.m.

Nonstop1h 50m

C$ 209

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Thu 16/10

2:46 p.m.-4:03 p.m.

Nonstop1h 17m

Seattle/Tacoma Intl

Mon 20/10

12:37 p.m.-1:56 p.m.

Nonstop1h 19m

C$ 209

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Wed 11/2

8:50 a.m.-9:59 a.m.

Nonstop1h 09m

Seattle/Tacoma Intl

Tue 10/3

7:50 p.m.-9:04 p.m.

Nonstop1h 14m

C$ 209

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 15/11

1:30 p.m.-2:38 p.m.

Nonstop2h 08m

Seattle/Tacoma Intl

Mon 17/11

3:10 p.m.-5:50 p.m.

Nonstop1h 40m

C$ 209

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

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 C$ 262). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 353). 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 September 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 17 September 2025.

The most flights from CA0 to SEA are scheduled on a Wednesday (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 17 September 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
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
3,095 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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
Check prices

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

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?

    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 01m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 204 km. Generally, flights for this route are direct.

  • 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$ 117. Alaska Airlines flights start at C$ 132 while deals on Delta start at C$ 133 one-way.

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

    Most travellers choose Toronto Pearson Intl - Seattle/Tacoma Intl, Calgary - Seattle/Tacoma Intl or Edmonton - 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: Alaska Airlines (93%), Hawaiian Airlines (93%), Air Tahiti Nui( 89%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 250. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 289 on average, our data indicates C$ 730 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, January is the cheapest month in which you can book a flight from Canada to Seattle (average of C$ 262). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 353). 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
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

Browse thousands of different options on Cheapflights for your next trip

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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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 158AverageC$ 464FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 179AverageC$ 482FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 188AverageC$ 447FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 212AverageC$ 519FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 217AverageC$ 415FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapestC$ 269AverageC$ 421FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Harbour Air SeaplanesCheapestC$ 304AverageC$ 374FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
American AirlinesCheapestC$ 527AverageC$ 696FlexibilityNo 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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