HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Toronto Island

$93+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTZ
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Toronto Island with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 14, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$230
(Air Canada)

One-way from

$93
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$266
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. 16% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 14, 2026.

This Air Canada deal was found by Cheapflights users on 1/13. 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.
Mon 3/308:00 pm
SEA
-
YTZ
2 stops11h 25m
Air Canada
Sat 4/43:35 pm
YTZ
-
SEA
2 stops9h 35m
Air Canada
Deal found 1/13$230
This Air Canada deal was found by Cheapflights users on 1/13. 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.
Sun 3/295:50 am
SEA
-
YTZ
2 stops12h 42m
Air Canada
Sat 4/43:35 pm
YTZ
-
SEA
2 stops9h 35m
Air Canada
Deal found 1/13$233
This Air Canada deal was found by Cheapflights users on 1/12. 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.
Wed 2/45:50 am
SEA
-
YTZ
2 stops9h 23m
Air Canada
Wed 2/118:30 pm
YTZ
-
SEA
2 stops21h 01m
Air Canada
Deal found 1/12$263
This Air Canada deal was found by Cheapflights users on 1/11. 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.
Wed 2/255:45 am
SEA
-
YTZ
2 stops9h 28m
Air Canada
Wed 3/48:30 pm
YTZ
-
SEA
2 stops21h 31m
Air Canada
Deal found 1/11$268
This Air Canada deal was found by Cheapflights users on 1/13. 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 4/185:50 am
SEA
-
YTZ
2 stops12h 42m
Air Canada
Sun 4/266:30 pm
YTZ
-
SEA
2 stops23h 33m
Air Canada
Deal found 1/13$304
This Kiwi.com deal was found by Cheapflights users on 1/11. 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.
Sun 2/811:05 pm
SEA
-
YTZ
2 stops15h 38m
Multiple Airlines
Sun 2/153:00 pm
YTZ
-
SEA
1 stop10h 54m
Multiple Airlines
Deal found 1/11$343
This Air Canada deal was found by Cheapflights users on 1/13. 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.
Fri 8/217:30 am
SEA
-
YTZ
1 stop9h 21m
Air Canada
Sun 8/2312:30 pm
YTZ
-
SEA
1 stop10h 16m
Air Canada
Deal found 1/13$350
This Air Canada deal was found by Cheapflights users on 1/13. 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.
Fri 8/217:30 am
SEA
-
YTZ
1 stop9h 21m
Air Canada
Sat 8/223:35 pm
YTZ
-
SEA
2 stops9h 47m
Air Canada
Deal found 1/13$352
This Air Canada deal was found by Cheapflights users on 1/13. 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.
Fri 8/217:30 am
SEA
-
YTZ
1 stop9h 21m
Air Canada
Thu 8/2712:30 pm
YTZ
-
SEA
2 stops12h 52m
Air Canada
Deal found 1/13$356
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/43:10 pm
SEA
-
YTZ
2 stops22h 04m
Multiple Airlines
Wed 2/116:15 pm
YTZ
-
SEA
1 stop31h 39m
Multiple Airlines
Deal found 1/12$368
This Mytrip deal was found by Cheapflights users on 1/13. 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.
Sun 4/125:50 am
SEA
-
YTZ
2 stops12h 00m
Multiple Airlines
Sun 4/197:00 am
YTZ
-
SEA
2 stops18h 10m
Multiple Airlines
Deal found 1/13$371
This Gotogate deal was found by Cheapflights users on 1/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/148:00 pm
SEA
-
YTZ
2 stops12h 42m
Air Canada
Tue 2/1710:45 am
YTZ
-
SEA
2 stops11h 31m
Air Canada
Deal found 1/13$376

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 January 14, 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

Tue 3/31

8:00 pm-10:25 am

2 stops11h 25m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$230

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 3/29

5:50 am-9:32 pm

2 stops12h 42m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$233

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/4

5:50 am-6:13 pm

2 stops9h 23m

Toronto Island

Wed 2/11

8:30 pm-2:31 pm

2 stops21h 01m

$263

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/25

8:00 pm-11:42 am

2 stops12h 42m

Toronto Island

Wed 3/4

8:30 pm-3:01 pm

2 stops21h 31m

$263

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/25

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

Wed 3/4

4:30 pm-9:31 am

3 stops20h 01m

$368

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 4/1

5:50 am-6:17 pm

2 stops9h 27m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$381

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 4/3

5:50 am-6:17 pm

2 stops9h 27m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$381

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 4/12

8:41 am-10:03 pm

2 stops10h 22m

Toronto Island

Sat 4/18

1:30 pm-9:28 pm

1 stop10h 58m

$385

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 2/17

11:08 pm-4:49 pm

2 stops14h 41m

Toronto Island

Sun 2/22

3:45 pm-10:05 am

1 stop21h 20m

$391

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 4/1

9:36 pm-10:35 am

1 stop9h 59m

Toronto Island

Sun 4/12

4:30 pm-7:02 am

2 stops17h 32m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 18 results
1
2

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 11h 25m. 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.