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Cheap flights from Canada to Seattle from C$ 134

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
8 Jul — 15 Jul1
1 adult

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 3 July 2025.

Round-trip from

C$ 237

One-way from

C$ 139

Popular in

July

Cheapest in

February

Average price

C$ 587

Good round-trip deal

C$ 366 or less

Good one-way deal

C$ 158 or less
WestJet
  • WestJet
  • 9/9-12/9
  • 2 total stops
  • 9h 08m total
  • Canada to Seattle
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WestJet
  • WestJet
  • 9/9
  • 1 total stop
  • 5h 09m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
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Average for round-trip flights in July 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 3 July 2025.

Tue 9/99:00 a.m.YVR - SEA
1 stop5h 09mWestJet
Fri 12/93:39 p.m.SEA - YVR
1 stop3h 59mWestJet
Deal found 1/7C$ 237
Thu 7/86:10 p.m.YYC - SEA
Nonstop2h 11mWestJet
Mon 11/81:15 p.m.SEA - YYC
1 stop4h 25mWestJet
Deal found 2/7C$ 237
Sat 12/712:30 p.m.YYC - SEA
2 stops7h 06mMultiple Airlines
Mon 14/77:35 p.m.SEA - YYC
Nonstop1h 40mMultiple Airlines
Deal found 2/7C$ 245
Sat 26/71:20 p.m.YYC - SEA
1 stop6h 16mAir Canada
Mon 28/72:55 p.m.SEA - YYC
1 stop6h 00mAir Canada
Deal found 3/7C$ 251
Fri 19/97:00 p.m.YYC - SEA
Nonstop1h 52mAlaska Airlines
Sun 21/97:59 a.m.SEA - YYC
Nonstop1h 41mAlaska Airlines
Deal found 2/7C$ 267
Tue 14/104:00 p.m.YEG - SEA
1 stop5h 29mWestJet
Fri 17/103:39 p.m.SEA - YEG
1 stop4h 13mWestJet
Deal found 3/7C$ 271
Wed 13/810:30 a.m.YVR - SEA
Nonstop1h 07mAlaska Airlines
Wed 13/811:10 p.m.SEA - YVR
Nonstop1h 01mAlaska Airlines
Deal found 3/7C$ 274
Wed 15/106:00 a.m.YHM - SEA
1 stop9h 59mWestJet
Thu 23/101:50 p.m.SEA - YHM
1 stop7h 50mWestJet
Deal found 1/7C$ 278
Sat 20/911:39 a.m.YEG - SEA
Nonstop1h 56mAlaska Airlines
Sat 27/97:55 a.m.SEA - YEG
Nonstop1h 54mAlaska Airlines
Deal found 1/7C$ 278
Thu 10/712:45 p.m.YEG - SEA
1 stop6h 51mAir Canada
Sat 12/72:55 p.m.SEA - YEG
1 stop5h 45mAir Canada
Deal found 3/7C$ 279
Sat 20/96:00 a.m.YEG - SEA
2 stops13h 49mUnited Airlines
Fri 26/95:00 a.m.SEA - YEG
1 stop8h 08mUnited Airlines
Deal found 1/7C$ 286
Thu 24/76:10 p.m.YEG - SEA
Nonstop1h 59mHawaiian Airlines
Mon 28/77:55 a.m.SEA - YEG
Nonstop1h 46mHawaiian Airlines
Deal found 1/7C$ 289

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 3 July 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

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 9/9

9:00 a.m.-2:09 p.m.

1 stop5h 09m

Seattle/Tacoma Intl

Fri 12/9

3:39 p.m.-7:38 p.m.

1 stop3h 59m

C$ 237

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Thu 7/8

7:00 a.m.-12:35 p.m.

1 stop6h 35m

Seattle/Tacoma Intl

Sun 10/8

7:35 p.m.-10:15 p.m.

Nonstop1h 40m

C$ 237

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 16/8

12:30 p.m.-6:36 p.m.

2 stops7h 06m

Seattle/Tacoma Intl

Sat 23/8

2:55 p.m.-8:28 p.m.

1 stop4h 33m

C$ 243

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 12/7

12:30 p.m.-6:36 p.m.

2 stops7h 06m

Seattle/Tacoma Intl

Mon 14/7

7:35 p.m.-10:15 p.m.

Nonstop1h 40m

C$ 245

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 19/9

7:00 p.m.-7:52 p.m.

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 21/9

7:59 a.m.-10:40 a.m.

Nonstop1h 41m

C$ 267

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Tue 14/10

4:00 p.m.-8:29 p.m.

1 stop5h 29m

Seattle/Tacoma Intl

Fri 17/10

3:39 p.m.-8:52 p.m.

1 stop4h 13m

C$ 271

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 13/8

10:30 a.m.-11:37 a.m.

Nonstop1h 07m

Seattle/Tacoma Intl

Wed 13/8

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

Nonstop1h 01m

C$ 274

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Sat 20/9

11:39 a.m.-12:35 p.m.

Nonstop1h 56m

Seattle/Tacoma Intl

Mon 29/9

7:55 a.m.-10:49 a.m.

Nonstop1h 54m

C$ 278

HamiltonSeattle

YHM - SEA

YHMSEA

Hamilton

Wed 15/10

6:00 a.m.-12:59 p.m.

1 stop9h 59m

Seattle/Tacoma Intl

Thu 23/10

1:50 p.m.-12:40 a.m.

1 stop7h 50m

C$ 278

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Thu 17/7

7:15 p.m.-10:16 p.m.

1 stop4h 01m

Seattle/Tacoma Intl

Sun 27/7

5:30 a.m.-11:00 a.m.

1 stop4h 30m

C$ 279

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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 3 July 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 3 July 2025.

The most flights from CA0 to SEA are scheduled on a Wednesday (6 on average). You will have fewer flight options on Monday, 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 3 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian 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

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
10,000 reviews
Check prices

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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?

    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.

  • 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$ 139. Air Canada flights start at C$ 151 while deals on Alaska Airlines start at C$ 158 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: Alaska Airlines (93%), Hawaiian Airlines (93%), Air Tahiti Nui( 88%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 197. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 309 on average our data indicates C$ 522 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 Canada?

Book flights to Canada if you plan to visit one of these locations
Leavenworth
Tukwila
SeaTac
Tacoma
Marysville
Bothell
Renton
Olympia
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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 151AverageC$ 431FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 173AverageC$ 469FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 184AverageC$ 458FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 217AverageC$ 482FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 231AverageC$ 409FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Harbour Air SeaplanesCheapestC$ 302AverageC$ 377FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
Hawaiian AirlinesCheapestC$ 314AverageC$ 458FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
American AirlinesCheapestC$ 522AverageC$ 689FlexibilityNo 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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