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Cheap flights from Canada to Seattle from C$ 129

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
4 May — 11 May1
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 29 April 2025.

Round-trip from

C$ 201

One-way from

C$ 129

Popular in

July

Cheapest in

February

Average price

C$ 549

Good round-trip deal

C$ 317 or less

Good one-way deal

C$ 206 or less
WestJet
  • WestJet
  • 2/6-4/6
  • Nonstop
  • 3h 33m total
  • Canada to Seattle
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Alaska Airlines
  • Alaska Airlines
  • 30/8
  • Nonstop
  • 1h 14m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
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 29 April 2025.

Mon 2/67:35 p.m.YYC - SEA
Nonstop1h 53mWestJet
Wed 4/61:50 p.m.SEA - YYC
Nonstop1h 40mWestJet
Deal found 28/4C$ 201
Fri 13/68:25 a.m.YYC - SEA
1 stop5h 33mAir Canada
Mon 16/67:15 p.m.SEA - YYC
1 stop4h 28mAir Canada
Deal found 28/4C$ 212
Mon 28/74:10 p.m.YLW - SEA
1 stop4h 18mWestJet
Fri 1/87:35 p.m.SEA - YLW
1 stop4h 14mWestJet
Deal found 27/4C$ 212
Fri 13/67:30 p.m.YYC - SEA
1 stop13h 31mMultiple Airlines
Mon 16/67:15 p.m.SEA - YYC
1 stop4h 28mMultiple Airlines
Deal found 27/4C$ 226
Mon 28/72:36 p.m.YLW - SEA
Nonstop1h 15mAlaska Airlines
Fri 1/812:30 p.m.SEA - YLW
Nonstop1h 16mAlaska Airlines
Deal found 27/4C$ 236
Mon 28/74:10 p.m.YLW - SEA
1 stop4h 18mMultiple Airlines
Fri 1/812:30 p.m.SEA - YLW
Nonstop1h 16mMultiple Airlines
Deal found 27/4C$ 240
Sun 25/59:00 a.m.YVR - SEA
1 stop5h 09mWestJet
Sun 1/68:10 a.m.SEA - YVR
1 stop5h 25mWestJet
Deal found 27/4C$ 241
Mon 26/55:40 p.m.YLW - SEA
1 stop4h 33mAir Canada
Mon 2/61:45 p.m.SEA - YLW
1 stop3h 12mAir Canada
Deal found 28/4C$ 244
Sat 2/811:55 a.m.YVR - SEA
Nonstop1h 06mAir Canada
Sat 9/81:45 p.m.SEA - YVR
Nonstop1h 08mAir Canada
Deal found 28/4C$ 262
Tue 27/53:25 p.m.YXE - SEA
1 stop4h 45mWestJet
Tue 3/62:05 p.m.SEA - YXE
1 stop5h 07mWestJet
Deal found 27/4C$ 262
Thu 17/72:45 p.m.YEG - SEA
1 stop4h 53mWestJet
Mon 21/77:35 p.m.SEA - YEG
1 stop3h 52mWestJet
Deal found 28/4C$ 265
Sun 18/56:00 a.m.YHM - SEA
1 stop9h 58mWestJet
Fri 30/51:50 p.m.SEA - YHM
1 stop7h 51mWestJet
Deal found 28/4C$ 267

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 29 April 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

Mon 2/6

7:35 p.m.-8:28 p.m.

Nonstop1h 53m

Seattle/Tacoma Intl

Wed 4/6

1:50 p.m.-4:30 p.m.

Nonstop1h 40m

C$ 201

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 13/6

8:25 a.m.-12:58 p.m.

1 stop5h 33m

Seattle/Tacoma Intl

Mon 16/6

7:15 p.m.-12:43 a.m.

1 stop4h 28m

C$ 212

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 28/7

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

1 stop4h 18m

Seattle/Tacoma Intl

Fri 1/8

7:35 p.m.-11:49 p.m.

1 stop4h 14m

C$ 212

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Fri 13/6

7:30 p.m.-8:01 a.m.

1 stop13h 31m

Seattle/Tacoma Intl

Mon 16/6

7:15 p.m.-12:43 a.m.

1 stop4h 28m

C$ 226

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 28/7

2:36 p.m.-3:51 p.m.

Nonstop1h 15m

Seattle/Tacoma Intl

Fri 1/8

12:30 p.m.-1:46 p.m.

Nonstop1h 16m

C$ 236

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sun 18/5

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

1 stop5h 09m

Seattle/Tacoma Intl

Sun 25/5

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

1 stop3h 59m

C$ 238

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 28/7

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

1 stop4h 18m

Seattle/Tacoma Intl

Fri 1/8

12:30 p.m.-1:46 p.m.

Nonstop1h 16m

C$ 240

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 26/5

5:40 p.m.-10:13 p.m.

1 stop4h 33m

Seattle/Tacoma Intl

Mon 2/6

1:45 p.m.-4:57 p.m.

1 stop3h 12m

C$ 244

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 2/8

11:55 a.m.-1:01 p.m.

Nonstop1h 06m

Seattle/Tacoma Intl

Sat 9/8

1:45 p.m.-2:53 p.m.

Nonstop1h 08m

C$ 262

SaskatoonSeattle

YXE - SEA

YXESEA

Saskatoon

Tue 27/5

3:25 p.m.-7:10 p.m.

1 stop4h 45m

Seattle/Tacoma Intl

Tue 3/6

2:05 p.m.-8:12 p.m.

1 stop5h 07m

C$ 262

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

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$ 261). 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 29 April 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 29 April 2025.

The most flights from CA0 to SEA are scheduled on a Thursday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 29 April 2025.
To help decide which airline to fly from Canada to Seattle, see what other customers have to say about Alaska Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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
9,949 reviews
Alaska Airlines
8.0
Very good
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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
7,929 reviews
Alaska Airlines
8.0
Very good
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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
WestJet
7.2
Good
2,823 reviews
Alaska Airlines
8.0
Very good
9,949 reviews
Check prices

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

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?

    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 Alaska Airlines, which is currently one of the cheapest options available, starting at C$ 129. Air Canada flights start at C$ 137 while deals on WestJet start at C$ 139 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 (95%), Alaska Airlines (87%), Hawaiian Airlines( 87%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 235. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 374 on average our data indicates C$ 1,092 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$ 261). 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
Tukwila
SeaTac
Tacoma
Marysville
Bothell
Olympia
Lynnwood
Leavenworth

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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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 154AverageC$ 450FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 176AverageC$ 486FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 187AverageC$ 451FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 204AverageC$ 503FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 228AverageC$ 417FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapestC$ 259AverageC$ 636FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Harbour Air SeaplanesCheapestC$ 307AverageC$ 388FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
Hawaiian AirlinesCheapestC$ 412AverageC$ 412FlexibilityNo cancel feeOn-time85%
Search Hawaiian 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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