Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Canada to Seattle from C$ 146

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 231

One-way from

C$ 146

Popular in

July

Cheapest in

February

Average price

C$ 558

Good round-trip deal

C$ 359 or less

Good one-way deal

C$ 199 or less
WestJet
  • WestJet
  • 3/7-7/7
  • Nonstop
  • 3h 33m total
  • Canada to Seattle
Search Deals
WestJet
  • WestJet
  • 25/7
  • Nonstop
  • 1h 53m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 76 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).
Search Deals
Average for round-trip flights in June 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

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 12 June 2025.

Thu 3/75:45 p.m.YYC - SEA
Nonstop1h 53mWestJet
Mon 7/77:35 p.m.SEA - YYC
Nonstop1h 40mWestJet
Deal found 9/6C$ 231
Mon 21/712:30 p.m.YYC - SEA
2 stops7h 06mAir Canada
Thu 24/77:15 p.m.SEA - YYC
1 stop4h 28mAir Canada
Deal found 10/6C$ 241
Tue 17/610:15 a.m.YYC - SEA
1 stop4h 58mMultiple Airlines
Tue 24/67:05 a.m.SEA - YYC
Nonstop1h 40mMultiple Airlines
Deal found 9/6C$ 243
Thu 24/72:45 p.m.YEG - SEA
1 stop5h 29mWestJet
Thu 31/71:15 p.m.SEA - YEG
Nonstop2h 06mWestJet
Deal found 10/6C$ 264
Thu 21/86:00 a.m.YVR - SEA
1 stop6h 58mWestJet
Sat 30/87:05 a.m.SEA - YVR
2 stops9h 05mWestJet
Deal found 10/6C$ 275
Thu 10/712:45 p.m.YEG - SEA
1 stop6h 51mAir Canada
Sat 12/710:00 a.m.SEA - YEG
1 stop6h 35mAir Canada
Deal found 11/6C$ 275
Sat 2/88:15 a.m.YVR - SEA
Nonstop1h 06mAir Canada
Sat 9/85:30 a.m.SEA - YVR
Nonstop1h 08mAir Canada
Deal found 11/6C$ 286
Wed 6/83:25 p.m.YXE - SEA
1 stop6h 03mWestJet
Wed 13/87:35 p.m.SEA - YXE
1 stop4h 19mWestJet
Deal found 10/6C$ 294
Wed 20/86:00 a.m.YHM - SEA
1 stop9h 58mWestJet
Thu 23/101:50 p.m.SEA - YHM
1 stop7h 50mWestJet
Deal found 10/6C$ 294
Mon 18/811:20 a.m.YEG - SEA
Nonstop2h 11mMultiple Airlines
Sat 23/88:00 a.m.SEA - YEG
Nonstop1h 54mMultiple Airlines
Deal found 11/6C$ 294
Fri 4/77:30 p.m.YVR - SEA
Nonstop1h 05mAlaska Airlines
Fri 11/710:57 p.m.SEA - YVR
Nonstop1h 01mAlaska Airlines
Deal found 11/6C$ 295
Sat 26/77:15 p.m.YYJ - SEA
1 stop3h 01mAir Canada
Sat 2/85:30 a.m.SEA - YYJ
1 stop3h 10mAir Canada
Deal found 11/6C$ 299

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 12 June 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

Thu 3/7

5:45 p.m.-6:38 p.m.

Nonstop1h 53m

Seattle/Tacoma Intl

Mon 7/7

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

Nonstop1h 40m

C$ 231

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Mon 21/7

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

2 stops7h 06m

Seattle/Tacoma Intl

Thu 24/7

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

1 stop4h 28m

C$ 241

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Thu 24/7

2:45 p.m.-7:14 p.m.

1 stop5h 29m

Seattle/Tacoma Intl

Thu 31/7

1:15 p.m.-4:21 p.m.

Nonstop2h 06m

C$ 264

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Thu 10/7

12:45 p.m.-6:36 p.m.

1 stop6h 51m

Seattle/Tacoma Intl

Sat 12/7

10:00 a.m.-5:35 p.m.

1 stop6h 35m

C$ 275

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 21/8

6:00 a.m.-12:58 p.m.

1 stop6h 58m

Seattle/Tacoma Intl

Sat 30/8

7:05 a.m.-4:10 p.m.

2 stops9h 05m

C$ 275

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Wed 23/7

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

Nonstop1h 53m

Seattle/Tacoma Intl

Fri 25/7

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

1 stop4h 28m

C$ 278

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Sat 23/8

6:00 a.m.-6:49 p.m.

2 stops13h 49m

Seattle/Tacoma Intl

Sat 30/8

5:07 a.m.-2:08 p.m.

1 stop8h 01m

C$ 282

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 2/8

8:15 a.m.-9:21 a.m.

Nonstop1h 06m

Seattle/Tacoma Intl

Sat 9/8

5:30 a.m.-6:38 a.m.

Nonstop1h 08m

C$ 286

EdmontonSeattle

YEG - SEA

YEGSEA

Edmonton

Mon 18/8

11:20 a.m.-12:31 p.m.

Nonstop2h 11m

Seattle/Tacoma Intl

Sat 23/8

8:00 a.m.-10:54 a.m.

Nonstop1h 54m

C$ 294

SaskatoonSeattle

YXE - SEA

YXESEA

Saskatoon

Wed 6/8

3:25 p.m.-8:28 p.m.

1 stop6h 03m

Seattle/Tacoma Intl

Wed 13/8

7:35 p.m.-12:54 a.m.

1 stop4h 19m

C$ 294

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 60 results
1
2
3
...
6

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 12 June 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 12 June 2025.

The most flights from CA0 to SEA are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, 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 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 12 June 2025.
To help decide which airline to fly from Canada to Seattle, see what other customers have to say about Alaska Airlines, Delta and Hawaiian 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
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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$ 146. Air Canada flights start at C$ 159 while deals on United Airlines start at C$ 178 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 Montreal Pierre Elliott Trudeau Intl - 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 (85%), Hawaiian Airlines (85%), Air Tahiti Nui( 76%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 252. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 320 on average our data indicates C$ 515 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
Leavenworth
Tukwila
SeaTac
Tacoma
Marysville
Bothell
Renton
Olympia
Lynnwood

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Canada to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Seattle flights
Vancouver Intl to Seattle flights
Pierre Elliott Trudeau Intl to Seattle flights
Calgary to Seattle flights
Vancouver Intl to Portland flights
Edmonton to Seattle flights
Hamilton to Seattle flights
Victoria to Seattle flights
Pearson Intl to Portland flights
Region of Waterloo Intl to Seattle flights
Toronto Island to Seattle flights
Saskatoon to Seattle flights
Ottawa to Seattle flights
Winnipeg to Portland flights
Ottawa to Portland flights
Edmonton to Portland flights
Hamilton to Portland flights
Los Angeles to Seattle flights
Kelowna to Seattle flights
Calgary to Portland flights
Region of Waterloo Intl to Portland flights
Winnipeg to Seattle flights
Victoria to Portland flights
Pierre Elliott Trudeau Intl to Portland flights
Vancouver Intl to Spokane flights
Québec City to Seattle flights
Toronto Island to Portland flights
Newark to Seattle flights
Halifax to Seattle flights
John F Kennedy Intl to Seattle flights
Austin to Seattle flights
Detroit to Seattle flights
Edmonton to Spokane flights
San Francisco to Seattle flights
Buffalo to Seattle flights
Pearson Intl to Spokane flights
Saskatoon to Portland flights
San Diego to Seattle flights
Denver to Portland flights
Salt Lake City to Seattle flights
Vancouver Intl to Bellingham flights
Kelowna to Portland flights
Las Vegas to Bellingham flights
Calgary to Spokane flights
Regina to Seattle flights
Reagan-National to Seattle flights

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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 151AverageC$ 439FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 174AverageC$ 473FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 185AverageC$ 440FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 207AverageC$ 483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 231AverageC$ 412FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Harbour Air SeaplanesCheapestC$ 303AverageC$ 378FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
Hawaiian AirlinesCheapestC$ 404AverageC$ 463FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
American AirlinesCheapestC$ 524AverageC$ 691FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.