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Cheap flights from Toronto Island Airport to Seattle from C$ 237

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YTZ — SEA
11 oct. — 18 oct.1
1 adult
1 adult, Economy

Cheap 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 11 septiembre 2025.

Round-trip from

C$ 344

One-way from

C$ 237

Popular in

December

Cheapest in

February

Average price

C$ 528
Air Canada
  • Air Canada
  • 25/10-1/11
  • 4 total stops
  • 18h 44m total
  • Toronto to Seattle
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5/10
  • 5/10
  • 3 total stops
  • 30h 39m total
  • Toronto to Seattle
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High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Toronto Island to Seattle

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 11 septiembre 2025.

sáb. 25/104:10 p.m.YTZ - SEA
2 stops9h 21mAir Canada
sáb. 1/115:50 a.m.SEA - YTZ
2 stops9h 23mAir Canada
Deal found 10/9C$ 344
vie. 17/104:10 p.m.YTZ - SEA
2 stops9h 21mAir Canada
lun. 20/102:55 p.m.SEA - YTZ
2 stops17h 36mAir Canada
Deal found 9/9C$ 437
mar. 4/119:15 a.m.YTZ - SEA
1 stop11h 49mMultiple Airlines
sáb. 8/116:15 p.m.SEA - YTZ
1 stop16h 27mMultiple Airlines
Deal found 10/9C$ 477
jue. 16/104:10 p.m.YTZ - SEA
2 stops9h 21mAir Canada
dom. 19/102:55 p.m.SEA - YTZ
2 stops17h 36mAir Canada
Deal found 8/9C$ 491
sáb. 25/104:10 p.m.YTZ - SEA
2 stops9h 21mMultiple Airlines
sáb. 1/113:40 p.m.SEA - YTZ
3 stops23h 03mMultiple Airlines
Deal found 10/9C$ 504
mar. 14/102:00 p.m.YTZ - SEA
1 stop10h 05mMultiple Airlines
mar. 21/105:50 p.m.SEA - YTZ
1 stop15h 27mMultiple Airlines
Deal found 10/9C$ 509
vie. 10/108:25 a.m.YTZ - SEA
1 stop14h 06mAir Canada
lun. 13/107:15 a.m.SEA - YTZ
1 stop11h 19mAir Canada
Deal found 10/9C$ 521
vie. 17/107:00 a.m.YTZ - SEA
3 stops15h 21mMultiple Airlines
lun. 20/102:05 p.m.SEA - YTZ
3 stops23h 23mMultiple Airlines
Deal found 9/9C$ 528
mar. 14/104:10 p.m.YTZ - SEA
2 stops9h 21mAir Canada
mar. 21/105:30 a.m.SEA - YTZ
2 stops10h 16mAir Canada
Deal found 10/9C$ 560
mar. 11/117:00 a.m.YTZ - SEA
2 stops18h 50mMultiple Airlines
lun. 17/1110:05 a.m.SEA - YTZ
1 stop8h 10mMultiple Airlines
Deal found 9/9C$ 567

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 11 septiembre 2025.
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

sáb. 25/10

4:10 p.m.-10:31 p.m.

2 stops9h 21m

Seattle/Tacoma Intl

sáb. 1/11

5:50 a.m.-6:13 p.m.

2 stops9h 23m

C$ 344

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

vie. 17/10

4:10 p.m.-10:31 p.m.

2 stops9h 21m

Seattle/Tacoma Intl

lun. 20/10

7:15 p.m.-11:31 a.m.

2 stops13h 16m

C$ 455

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mar. 4/11

9:15 a.m.-6:04 p.m.

1 stop11h 49m

Seattle/Tacoma Intl

sáb. 8/11

6:15 p.m.-1:42 p.m.

1 stop16h 27m

C$ 477

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

jue. 16/10

4:10 p.m.-10:31 p.m.

2 stops9h 21m

Seattle/Tacoma Intl

dom. 19/10

2:55 p.m.-11:31 a.m.

2 stops17h 36m

C$ 491

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

lun. 2/3

8:30 p.m.-3:01 p.m.

2 stops21h 31m

Seattle/Tacoma Intl

mar. 3/3

8:00 p.m.-9:55 a.m.

2 stops10h 55m

C$ 502

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

sáb. 25/10

4:10 p.m.-10:31 p.m.

2 stops9h 21m

Seattle/Tacoma Intl

sáb. 1/11

3:40 p.m.-5:43 p.m.

3 stops23h 03m

C$ 504

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

vie. 10/10

8:25 a.m.-7:31 p.m.

1 stop14h 06m

Seattle/Tacoma Intl

lun. 13/10

7:15 a.m.-9:34 p.m.

1 stop11h 19m

C$ 521

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

vie. 17/10

7:00 a.m.-7:21 p.m.

3 stops15h 21m

Seattle/Tacoma Intl

lun. 20/10

2:05 p.m.-4:28 p.m.

3 stops23h 23m

C$ 528

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mar. 14/10

4:10 p.m.-10:31 p.m.

2 stops9h 21m

Seattle/Tacoma Intl

mar. 21/10

5:30 a.m.-6:46 p.m.

2 stops10h 16m

C$ 560

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mar. 11/11

7:00 a.m.-10:50 p.m.

2 stops18h 50m

Seattle/Tacoma Intl

lun. 17/11

10:05 a.m.-9:15 p.m.

1 stop8h 10m

C$ 567

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 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 9h 21m. 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.

  • What is the cheapest month to book a flight from Toronto Island Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Toronto Island Airport to Seattle (average of C$ 262). Flying from Toronto Island Airport 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 Seattle?

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

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