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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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTZ
ene. 25 — feb. 11
dom. 1/25
dom. 2/1
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 diciembre 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
mié. 12/315:49 pmSEA - YTZ
2 stops16h 31mMultiple Airlines
lun. 1/57:40 pmYTZ - SEA
1 stop17h 56mMultiple Airlines
Deal found 12/25$787
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
jue. 12/255:59 pmSEA - YTZ
2 stops16h 21mMultiple Airlines
jue. 1/812:30 pmYTZ - SEA
1 stop10h 25mMultiple Airlines
Deal found 12/24$949
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
mié. 12/315:49 pmSEA - YTZ
2 stops16h 31mMultiple Airlines
vie. 1/23:00 pmYTZ - SEA
1 stop8h 51mMultiple Airlines
Deal found 12/25$956
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
jue. 12/258:19 amSEA - YTZ
1 stop8h 31mMultiple Airlines
mié. 1/73:00 pmYTZ - SEA
1 stop9h 28mMultiple Airlines
Deal found 12/24$983
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
mar. 12/308:19 amSEA - YTZ
1 stop8h 31mMultiple Airlines
mar. 1/64:30 pmYTZ - SEA
2 stops17h 45mMultiple Airlines
Deal found 12/25$1,005
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
lun. 12/2910:04 amSEA - YTZ
1 stop9h 06mMultiple Airlines
lun. 1/57:40 pmYTZ - SEA
1 stop17h 56mMultiple Airlines
Deal found 12/24$1,012
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
jue. 12/258:19 amSEA - YTZ
1 stop8h 31mMultiple Airlines
lun. 1/57:40 pmYTZ - SEA
1 stop17h 56mMultiple Airlines
Deal found 12/24$1,053
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
jue. 12/258:19 amSEA - YTZ
1 stop8h 31mMultiple Airlines
mar. 1/63:00 pmYTZ - SEA
1 stop8h 51mMultiple Airlines
Deal found 12/24$1,054

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 diciembre 26, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$252
(Flightnetwork)

One-way from

$122
(Air Canada)

Popular in

December

Cheapest in

November

Average price

$553
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.
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From Seattle/Tacoma Intl to Toronto Island
Search Deals
One-way flight from Seattle/Tacoma Intl to Toronto Island
Search Deals
High demand for flights, 6% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 diciembre 26, 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

lun. 2/9

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

lun. 2/16

6:30 pm-2:31 pm

2 stops23h 01m

$252

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

jue. 2/12

5:45 am-6:10 pm

2 stops9h 25m

Toronto Island

lun. 2/16

12:30 pm-10:51 pm

2 stops13h 21m

$258

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

sáb. 2/14

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

lun. 2/16

10:25 am-10:51 pm

2 stops15h 26m

$258

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

dom. 2/15

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

lun. 2/16

12:30 pm-10:51 pm

2 stops13h 21m

$258

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

mar. 5/12

7:15 am-7:52 pm

1 stop9h 37m

Toronto Island

dom. 5/17

12:30 pm-7:37 pm

1 stop10h 07m

$350

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

sáb. 1/17

11:55 am-5:43 pm

3 stops26h 48m

Toronto Island

mar. 1/20

2:05 pm-2:20 pm

3 stops27h 15m

$372

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

vie. 1/23

8:43 am-7:50 pm

1 stop8h 07m

Toronto Island

vie. 1/30

7:00 am-6:49 pm

2 stops14h 49m

$372

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

lun. 2/9

11:05 pm-5:43 pm

2 stops15h 38m

Toronto Island

lun. 2/16

8:40 am-10:54 pm

1 stop17h 14m

$409

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

dom. 2/15

8:55 am-10:10 pm

1 stop10h 15m

Toronto Island

mié. 2/18

3:00 pm-10:54 pm

1 stop10h 54m

$412

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

lun. 2/16

7:45 am-10:10 pm

2 stops11h 25m

Toronto Island

jue. 2/19

3:00 pm-8:55 pm

1 stop8h 55m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 20 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 42m. 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

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