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Cheap flights from Canada to Seattle from C$ 145

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap 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 29 April 2026.

Mon 8/69:15 a.m.
YVR
-
SEA
2 stops9h 30m
WestJet
Thu 11/610:30 a.m.
SEA
-
YVR
2 stops8h 40m
WestJet
Deal found 24/4C$ 251
Mon 11/55:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Wed 13/510:30 a.m.
SEA
-
YVR
1 stop7h 10m
WestJet
Deal found 26/4C$ 253
Thu 14/55:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Tue 19/510:30 a.m.
SEA
-
YVR
1 stop6h 20m
WestJet
Deal found 27/4C$ 254
Sat 16/51:45 p.m.
YVR
-
SEA
1 stop5h 00m
WestJet
Sun 24/510:30 a.m.
SEA
-
YVR
1 stop7h 10m
WestJet
Deal found 25/4C$ 255
Fri 19/65:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Mon 22/610:30 a.m.
SEA
-
YVR
1 stop6h 20m
WestJet
Deal found 25/4C$ 257
Fri 8/51:45 p.m.
YVR
-
SEA
1 stop5h 00m
WestJet
Mon 11/510:30 a.m.
SEA
-
YVR
1 stop6h 20m
WestJet
Deal found 24/4C$ 258
Wed 9/910:40 a.m.
YYJ
-
SEA
2 stops8h 05m
WestJet
Thu 10/910:30 a.m.
SEA
-
YYJ
2 stops7h 45m
WestJet
Deal found 27/4C$ 258
Mon 8/69:15 a.m.
YVR
-
SEA
2 stops9h 30m
WestJet
Mon 15/610:30 a.m.
SEA
-
YVR
2 stops8h 40m
WestJet
Deal found 24/4C$ 260
Thu 28/55:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Thu 4/610:30 a.m.
SEA
-
YVR
2 stops8h 40m
WestJet
Deal found 24/4C$ 261
Sat 9/51:45 p.m.
YVR
-
SEA
1 stop5h 00m
WestJet
Sat 16/510:30 a.m.
SEA
-
YVR
1 stop5h 25m
WestJet
Deal found 25/4C$ 264
Wed 27/510:40 a.m.
YYJ
-
SEA
2 stops8h 05m
WestJet
Sat 30/510:30 a.m.
SEA
-
YYJ
2 stops12h 55m
WestJet
Deal found 27/4C$ 264
Sat 9/511:15 a.m.
YVR
-
SEA
2 stops7h 30m
WestJet
Wed 13/510:30 a.m.
SEA
-
YVR
1 stop5h 25m
WestJet
Deal found 25/4C$ 265

Find 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 2026.

Round-trip from

C$ 251

One-way from

C$ 145

Popular in

June

Cheapest in

February

Average price

C$ 552

Good round-trip deal

C$ 257 or less

Good one-way deal

C$ 258 or less
WestJet
  • WestJet
  • 8/6-11/6
  • 4 total stops
  • 18h 10m total
  • Canada to Seattle
Search Deals
WestJet
  • WestJet
  • 5/6
  • 1 total stop
  • 7h 00m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 29 April 2026.
Use the filters below to find and compare flights from Canada to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Wed 9/9

1:05 p.m.-6:45 p.m.

1 stop5h 40m

Seattle/Tacoma Intl

Thu 10/9

10:30 a.m.-6:15 p.m.

2 stops7h 45m

C$ 260

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Wed 3/6

9:50 a.m.-6:45 p.m.

2 stops8h 55m

Seattle/Tacoma Intl

Sat 6/6

10:30 a.m.-5:30 p.m.

1 stop7h 00m

C$ 262

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Sat 30/5

1:05 p.m.-6:45 p.m.

1 stop5h 40m

Seattle/Tacoma Intl

Mon 1/6

10:30 a.m.-6:15 p.m.

2 stops7h 45m

C$ 284

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Thu 23/7

1:05 p.m.-6:45 p.m.

1 stop5h 40m

Seattle/Tacoma Intl

Tue 28/7

7:00 a.m.-12:10 p.m.

1 stop5h 10m

C$ 284

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Tue 19/5

6:30 a.m.-6:45 p.m.

2 stops12h 15m

Seattle/Tacoma Intl

Tue 26/5

10:30 a.m.-5:30 p.m.

1 stop7h 00m

C$ 305

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Sat 29/8

7:05 p.m.-10:48 p.m.

1 stop4h 43m

Seattle/Tacoma Intl

Tue 1/9

7:20 p.m.-1:40 a.m.

1 stop5h 20m

C$ 311

VictoriaSeattle

YYJ - SEA

YYJSEA

Victoria Intl

Fri 19/6

8:25 p.m.-9:40 a.m.

1 stop13h 15m

Seattle/Tacoma Intl

Mon 29/6

7:00 a.m.-12:10 p.m.

1 stop5h 10m

C$ 320

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 26/5

5:23 p.m.-6:40 p.m.

Nonstop1h 17m

Seattle/Tacoma Intl

Sun 7/6

9:42 p.m.-10:58 p.m.

Nonstop1h 16m

C$ 321

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 14/5

11:20 a.m.-12:38 p.m.

Nonstop1h 18m

Seattle/Tacoma Intl

Sun 17/5

5:44 p.m.-6:51 p.m.

Nonstop1h 07m

C$ 321

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 16/5

5:23 p.m.-6:40 p.m.

Nonstop1h 17m

Seattle/Tacoma Intl

Sun 24/5

5:44 p.m.-6:51 p.m.

Nonstop1h 07m

C$ 321

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Canada to Seattle?

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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$ 86). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 751). 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 2026.

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 afternoon, which can drop the price by up to 48% 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 25 April 2026.

Travelers seeking maximum savings on their Canada to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights from Canada to Seattle delayed?

About 19% of weekly flights between Canada and Seattle have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Canada to Seattle flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Canada to Seattle flights?

Over the past year, Alaska Airlines has had the lowest number of delays on this route, with just 14% of flights being delayed.

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 2026.
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
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,312 reviews
Alaska Airlines
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,467 reviews
Alaska Airlines
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,680 reviews
Alaska Airlines
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
WestJet
7.2
Good
3,328 reviews
Alaska Airlines
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Air Canada
7.1
Good
10,979 reviews
Alaska Airlines
7.9
Good
12,312 reviews
Check prices

Food

7.1

Overall

7.9

Entertainment

7.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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, Air Canada, and Delta fly from Canada to Seattle in about 1h 17m. The time it takes to get you to your destination can typically vary by up to 6h 48m. 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$ 85. Alaska Airlines flights start at C$ 90 while deals on Air Canada start at C$ 102 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 (93%), Alaska Airlines (70%), Hawaiian Airlines( 70%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 264. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 305 on average, our data indicates C$ 555 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$ 86). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 751). 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
SeaTac
Leavenworth
Mukilteo
Kent
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood
Kirkland
Tukwila

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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Hamilton to Portland flights
Winnipeg to Portland flights
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Saskatoon to Seattle flights
Newark to Seattle flights
Victoria to Portland flights
Ottawa to Portland flights
Edmonton to Portland flights
Saskatoon to Portland flights
Québec City to Portland flights
Los Angeles to Seattle flights
Region of Waterloo Intl to Portland flights
Calgary to Spokane flights
Pierre Elliott Trudeau Intl to Spokane flights
Regina to Seattle flights
Cleveland to Seattle flights
Pearson Intl to Spokane flights
Edmonton to Spokane flights
Detroit to Portland flights
Kelowna to Portland flights
Vancouver Intl to Bellingham flights
Sault Ste Marie to Seattle flights
Prince George to Seattle flights
Fort St. John to Portland flights
London to Seattle flights

Top 7 airlines flying from Canada to Seattle

Discover the top 7 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 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 121AverageC$ 482FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 178AverageC$ 568FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 181AverageC$ 421FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 194AverageC$ 372FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Harbour Air SeaplanesCheapestC$ 257AverageC$ 316FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
DeltaCheapestC$ 276AverageC$ 510FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Hawaiian AirlinesCheapestC$ 370AverageC$ 644FlexibilityNo 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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