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Cheap flights from Toronto Island Airport to Seattle from C$ 186

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
YTZ — SEA
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Toronto Island to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Toronto Island to Seattle
Explore the most affordable flight options available from Toronto Island to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 January 2026.

Mon 2/310:25 a.m.
YTZ
-
SEA
2 stops15h 32m
Air Canada
Wed 4/35:40 a.m.
SEA
-
YTZ
2 stops9h 30m
Air Canada
Deal found 27/1C$ 371
Tue 3/38:50 a.m.
YTZ
-
SEA
2 stops17h 07m
Air Canada
Wed 4/35:50 a.m.
SEA
-
YTZ
2 stops9h 20m
Air Canada
Deal found 24/1C$ 374
Fri 8/512:30 p.m.
YTZ
-
SEA
1 stop10h 07m
Air Canada
Sat 16/57:15 a.m.
SEA
-
YTZ
1 stop11h 17m
Air Canada
Deal found 25/1C$ 396
Wed 27/512:30 p.m.
YTZ
-
SEA
1 stop10h 07m
Air Canada
Sun 31/57:15 a.m.
SEA
-
YTZ
1 stop11h 17m
Air Canada
Deal found 26/1C$ 424
Sat 7/310:45 a.m.
YTZ
-
SEA
2 stops24h 46m
Air Canada
Sat 14/38:00 p.m.
SEA
-
YTZ
2 stops10h 42m
Air Canada
Deal found 25/1C$ 493
Mon 23/212:30 p.m.
YTZ
-
SEA
2 stops13h 27m
Air Canada
Mon 2/35:50 a.m.
SEA
-
YTZ
2 stops11h 05m
Air Canada
Deal found 25/1C$ 552
Mon 2/37:35 p.m.
YTZ
-
SEA
1 stop17h 58m
Multiple Airlines
Wed 4/311:08 p.m.
SEA
-
YTZ
2 stops14h 35m
Multiple Airlines
Deal found 27/1C$ 608
Wed 1/43:35 p.m.
YTZ
-
SEA
2 stops9h 35m
Air Canada
Mon 6/48:00 p.m.
SEA
-
YTZ
2 stops11h 25m
Air Canada
Deal found 26/1C$ 622
Wed 18/25:10 p.m.
YTZ
-
SEA
2 stops16h 52m
Multiple Airlines
Wed 25/210:40 p.m.
SEA
-
YTZ
1 stop9h 17m
Multiple Airlines
Deal found 26/1C$ 637
Thu 12/312:00 p.m.
YTZ
-
SEA
2 stops25h 55m
Multiple Airlines
Thu 19/39:36 p.m.
SEA
-
YTZ
1 stop9h 59m
Multiple Airlines
Deal found 26/1C$ 659

Find flight deals from Toronto Island to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Toronto Island (YTZ) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 January 2026.

Round-trip from

C$ 371

One-way from

C$ 186

Popular in

June

Cheapest in

February

Average price

C$ 545
Air Canada
  • Air Canada
  • 2/3-4/3
  • 4 total stops
  • 25h 02m total
  • Toronto to Seattle
Search Deals
Air Canada
  • Air Canada
  • 13/5
  • 1 total stop
  • 10h 07m total
  • Toronto to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto Island 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 27 January 2026.
Use the filters below to find and compare flights from Toronto Island Airport to Seattle that are best for you.

Fly from

Toronto Island

Fly to

Seattle

Route

Depart

Return

Price

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 3/3

8:50 a.m.-10:57 p.m.

2 stops17h 07m

Seattle/Tacoma Intl

Wed 4/3

5:50 a.m.-6:10 p.m.

2 stops9h 20m

C$ 374

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Fri 8/5

12:30 p.m.-7:37 p.m.

1 stop10h 07m

Seattle/Tacoma Intl

Sat 16/5

7:15 a.m.-9:32 p.m.

1 stop11h 17m

C$ 396

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sat 7/3

10:45 a.m.-8:31 a.m.

2 stops24h 46m

Seattle/Tacoma Intl

Sat 14/3

8:00 p.m.-9:42 a.m.

2 stops10h 42m

C$ 493

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Mon 23/2

12:30 p.m.-10:57 p.m.

2 stops13h 27m

Seattle/Tacoma Intl

Mon 2/3

5:50 a.m.-7:55 p.m.

2 stops11h 05m

C$ 552

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Mon 2/3

7:35 p.m.-10:33 a.m.

1 stop17h 58m

Seattle/Tacoma Intl

Wed 4/3

11:08 p.m.-4:43 p.m.

2 stops14h 35m

C$ 608

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Wed 18/2

5:10 p.m.-7:02 a.m.

2 stops16h 52m

Seattle/Tacoma Intl

Wed 25/2

10:40 p.m.-10:57 a.m.

1 stop9h 17m

C$ 637

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Thu 12/3

6:15 p.m.-10:55 a.m.

1 stop19h 40m

Seattle/Tacoma Intl

Thu 19/3

9:36 p.m.-10:35 a.m.

1 stop9h 59m

C$ 660

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Fri 19/6

12:30 p.m.-7:46 p.m.

1 stop10h 16m

Seattle/Tacoma Intl

Fri 26/6

7:30 a.m.-7:51 p.m.

1 stop9h 21m

C$ 660

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 14/6

12:30 p.m.-7:37 p.m.

1 stop10h 07m

Seattle/Tacoma Intl

Mon 22/6

7:30 a.m.-7:51 p.m.

1 stop9h 21m

C$ 660

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Wed 13/5

12:30 p.m.-7:37 p.m.

1 stop10h 07m

C$ 186

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 17 results
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Best time to book a flight from Toronto Island to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Toronto Island 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.

Related info for your journey

Find useful and relevant information for your journey from Toronto Island 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 Toronto Island?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from Toronto Island to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Toronto Island on a regular basis. Booking flights from Toronto Island to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Toronto Island per day.

  • How long is the flight from Toronto Island Airport to Seattle?

    Airlines like Air Canada fly from Toronto Island Airport to Seattle in about 17h 07m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3323 km.

  • Can I find deals for flights from Toronto Island to Seattle that include hotel bookings?

    Yes. In addition to deals on Toronto Island to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Toronto Island to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto Island to Seattle.

  • Can I find deals for business class flights from Toronto Island to Seattle?

    Yes. Cheapflights offers flight deals from Toronto Island 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Mukilteo
Tacoma
Kent
Tukwila
Bothell
Cashmere
Olympia
Renton
Lynnwood
Marysville
Kirkland

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