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Toronto Island

$122+ Cheap flights from Seattle (SEA) to Toronto Island (YTZ)

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTZ
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap flight deals from Seattle to Toronto Island

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Toronto Island (YTZ). 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 septiembre 16, 2025.

Round-trip from

$271
(Air Canada)

One-way from

$122
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$411
From Seattle/Tacoma Intl to Toronto Island
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One-way flight from Seattle/Tacoma Intl to Toronto Island
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Highest demand for flights based on searches. 15% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Seattle to Toronto Island

Cheapest flights from Seattle to Toronto Island
Explore the most affordable flight options available from Seattle to Toronto Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/127:15 amSEA - YTZ
1 stop9h 34mAir Canada
mié. 10/224:10 pmYTZ - SEA
2 stops9h 21mAir Canada
Deal found 9/14$271
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/127:15 amSEA - YTZ
1 stop9h 34mAir Canada
jue. 10/234:10 pmYTZ - SEA
2 stops9h 21mAir Canada
Deal found 9/14$282
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/297:15 amSEA - YTZ
1 stop9h 34mAir Canada
mar. 10/712:25 pmYTZ - SEA
1 stop10h 06mAir Canada
Deal found 9/15$307
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/137:15 amSEA - YTZ
1 stop11h 19mAir Canada
jue. 10/234:10 pmYTZ - SEA
2 stops9h 21mAir Canada
Deal found 9/14$315
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/147:15 pmSEA - YTZ
2 stops13h 16mAir Canada
mar. 10/218:25 pmYTZ - SEA
2 stops20h 51mAir Canada
Deal found 9/14$318
This Booking.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/305:50 amSEA - YTZ
2 stops9h 23mAir Canada
jue. 11/610:30 amYTZ - SEA
2 stops26h 01mAir Canada
Deal found 9/15$321
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2510:00 amSEA - YTZ
2 stops20h 55mAir Canada
sáb. 11/16:30 pmYTZ - SEA
2 stops24h 01mAir Canada
Deal found 9/14$329
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/307:15 amSEA - YTZ
1 stop11h 19mAir Canada
mar. 10/712:25 pmYTZ - SEA
1 stop10h 06mAir Canada
Deal found 9/15$340

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Toronto Island 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 2,558,603 searches. Data last updated septiembre 16, 2025.
Use the filters below to find and compare flights from Seattle to Toronto Island Airport that are best for you.

Fly from

Seattle

Fly to

Toronto Island

Route

Depart

Return

Price

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

dom. 10/12

5:30 am-6:46 pm

2 stops10h 16m

Toronto Island

mié. 10/22

4:10 pm-10:31 pm

2 stops9h 21m

$276

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

lun. 9/29

7:15 am-7:49 pm

1 stop9h 34m

Toronto Island

mar. 10/7

12:25 pm-7:31 pm

1 stop10h 06m

$307

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mar. 10/14

7:15 pm-11:31 am

2 stops13h 16m

Toronto Island

mar. 10/21

8:25 pm-2:16 pm

2 stops20h 51m

$318

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

sáb. 10/25

10:00 am-9:55 am

2 stops20h 55m

Toronto Island

sáb. 11/1

6:30 pm-3:31 pm

2 stops24h 01m

$330

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mié. 10/1

7:15 am-9:34 pm

1 stop11h 19m

Toronto Island

mar. 10/7

12:25 pm-7:31 pm

1 stop10h 06m

$340

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mar. 10/14

2:05 pm-7:03 pm

3 stops25h 58m

Toronto Island

mar. 10/21

9:10 am-7:21 pm

2 stops13h 11m

$358

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mié. 10/29

5:50 am-6:13 pm

2 stops9h 23m

Toronto Island

mié. 11/5

8:30 am-7:16 pm

2 stops13h 46m

$364

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mié. 10/29

3:10 pm-5:43 pm

2 stops23h 33m

Toronto Island

mié. 11/5

7:40 pm-7:35 pm

1 stop26h 55m

$382

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

vie. 10/31

3:10 pm-4:43 pm

2 stops22h 33m

Toronto Island

vie. 11/7

7:40 pm-10:40 am

1 stop18h 00m

$404

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

sáb. 10/25

1:50 pm-7:50 pm

2 stops27h 00m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 results
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Best time to book a flight from Seattle to Toronto Island

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

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Toronto Island. On average, Seattle/Tacoma Intl has 0 outbound flights to Toronto Island per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    There are many flights that can get you from Seattle to Toronto Island Airport in 10h 16m. Fly via Air Canada to get the fastest option. The distance between Seattle and Toronto Island Airport is about 2065 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Toronto Island 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 Seattle to Toronto Island Airport?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Toronto Island Airport (average of $228). Flying from Seattle to Toronto Island Airport in November is currently the most expensive (average of $321). 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.

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