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Toronto Island

$95+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTZ
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap 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 February 13, 2026.

This Air Canada deal was found by Cheapflights users on 2/11. 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.
Thu 3/125:40 am
SEA
-
YTZ
2 stops9h 30m
Air Canada
Thu 3/1912:30 pm
YTZ
-
SEA
2 stops13h 27m
Air Canada
Deal found 2/11$283
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:52 pm
SEA
-
YTZ
1 stop7h 14m
United Airlines
Sat 6/62:55 pm
YTZ
-
SEA
1 stop8h 50m
United Airlines
Deal found 2/10$344
This Booking.com deal was found by Cheapflights users on 2/12. 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.
Sun 3/293:40 pm
SEA
-
YTZ
2 stops15h 45m
Air Canada
Sun 4/53:35 pm
YTZ
-
SEA
2 stops10h 15m
Air Canada
Deal found 2/12$346
This Flightnetwork deal was found by Cheapflights users on 2/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:00 pm
SEA
-
YTZ
2 stops10h 42m
Air Canada
Tue 3/248:30 pm
YTZ
-
SEA
2 stops21h 31m
Air Canada
Deal found 2/12$394
This Air Canada deal was found by Cheapflights users on 2/10. 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.
Tue 3/2410:10 am
SEA
-
YTZ
2 stops19h 45m
Air Canada
Tue 3/313:35 pm
YTZ
-
SEA
2 stops10h 28m
Air Canada
Deal found 2/10$395
This Air Canada deal was found by Cheapflights users on 2/12. 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.
Tue 8/113:00 pm
SEA
-
YTZ
2 stops16h 55m
Air Canada
Tue 9/112:30 pm
YTZ
-
SEA
2 stops12h 52m
Air Canada
Deal found 2/12$410
This Air Canada deal was found by Cheapflights users on 2/10. 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.
Sat 3/288:00 pm
SEA
-
YTZ
2 stops11h 25m
Air Canada
Sat 4/43:35 pm
YTZ
-
SEA
2 stops10h 15m
Air Canada
Deal found 2/10$421
This Booking.com deal was found by Cheapflights users on 2/12. 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.
Thu 10/15:40 am
SEA
-
YTZ
2 stops12h 50m
Air Canada
Sat 10/103:35 pm
YTZ
-
SEA
2 stops9h 47m
Air Canada
Deal found 2/12$426
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:10 am
SEA
-
YTZ
1 stop10h 40m
Multiple Airlines
Sat 4/44:30 pm
YTZ
-
SEA
2 stops17h 32m
Multiple Airlines
Deal found 2/10$427
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/123:11 pm
SEA
-
YTZ
1 stop16h 24m
Multiple Airlines
Thu 3/193:15 pm
YTZ
-
SEA
2 stops18h 47m
Multiple Airlines
Deal found 2/11$430

Find 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$283
(Air Canada)

One-way from

$95
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$327
Provider with most accurate pricing for Seattle/Tacoma Intl-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Toronto (YTO) flights.
Search Deals
From Seattle/Tacoma Intl to Toronto Island
Search Deals
One-way flight from Seattle/Tacoma Intl to Toronto Island
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 13, 2026.
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

Thu 3/12

5:40 am-6:10 pm

2 stops9h 30m

Toronto Island

Thu 3/19

12:30 pm-10:57 pm

2 stops13h 27m

$283

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 6/4

11:52 pm-10:06 am

1 stop7h 14m

Toronto Island

Sat 6/6

2:55 pm-8:45 pm

1 stop8h 50m

$344

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 3/29

3:40 pm-10:25 am

2 stops15h 45m

Toronto Island

Sun 4/5

3:35 pm-10:50 pm

2 stops10h 15m

$346

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 3/24

10:10 am-8:55 am

2 stops19h 45m

Toronto Island

Tue 3/31

3:35 pm-11:03 pm

2 stops10h 28m

$395

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 3/28

8:00 pm-10:25 am

2 stops11h 25m

Toronto Island

Sat 4/4

3:35 pm-10:50 pm

2 stops10h 15m

$410

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 8/11

3:00 pm-10:55 am

2 stops16h 55m

Toronto Island

Tue 9/1

12:30 pm-10:22 pm

2 stops12h 52m

$410

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 8/11

7:20 pm-10:55 am

2 stops12h 35m

Toronto Island

Mon 8/31

12:30 pm-10:22 pm

2 stops12h 52m

$410

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 3/28

6:10 am-7:50 pm

1 stop10h 40m

Toronto Island

Sat 4/4

4:30 pm-7:02 am

2 stops17h 32m

$427

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 3/12

3:11 pm-10:35 am

1 stop16h 24m

Toronto Island

Thu 3/19

3:15 pm-7:02 am

2 stops18h 47m

$430

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 3/15

8:00 pm-6:10 pm

2 stops19h 10m

Toronto Island

Wed 3/18

12:30 pm-10:57 pm

2 stops13h 27m

$435

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 18 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 7h 14m. Fly via Air Canada or United Airlines to get the fastest option. The distance between Seattle and Toronto Island Airport is about 2065 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

See more FAQs

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