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Toronto Island

$155+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTZ
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$290
(Air Canada)

One-way from

$155
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$525
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. 13% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/12. 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.
Fri 9/267:15 amSEA - YTZ
1 stop9h 34mAir Canada
Tue 9/3012:25 pmYTZ - SEA
1 stop10h 06mAir Canada
Deal found 6/12$290
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Thu 8/146:00 amSEA - YTZ
1 stop11h 02mMultiple Airlines
Mon 8/183:35 pmYTZ - SEA
1 stop20h 02mMultiple Airlines
Deal found 6/10$427

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 June 12, 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

Fri 9/26

7:15 am-7:49 pm

1 stop9h 34m

Toronto Island

Tue 9/30

12:25 pm-7:31 pm

1 stop10h 06m

$290

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 8/14

6:00 am-8:02 pm

1 stop11h 02m

Toronto Island

Mon 8/18

3:35 pm-8:37 am

1 stop20h 02m

$427

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 9/21

7:15 pm-11:31 am

2 stops13h 16m

$155

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 7/24

7:35 pm-4:27 pm

3 stops17h 52m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Toronto Island Airport

Rainfall in Toronto Island by month

Plan your trip to Toronto Island by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto Island Airport ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto Island Airport when rainfall is around 2.0 in.

Temperature in Toronto Island by month

Plan your trip to Toronto Island by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto Island Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Toronto Island

Get insights into the airlines that provide service to Toronto Island. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto Island. Reviews last updated June 12, 2025.
Air Canada
7.1
Good
9,531 reviews

Overall

7.1

Entertainment

6.8

Food

6.3

Boarding

7.3

Comfort

7.0

Crew

7.8

Reviews

1 / 20
10.0
Excellent

rita,May 2025

YWG - YYZ

All was good just disappeared about our flight on our original day May 27 the being cancelled
Air Canada
7.1
Good
9,531 reviews
Air Canada
7.1
Good
9,531 reviews

Overall

7.1

Entertainment

6.8

Food

6.3

Boarding

7.3

Comfort

7.0

Crew

7.8

Reviews

1 / 20
10.0
Excellent

rita,May 2025

YWG - YYZ

All was good just disappeared about our flight on our original day May 27 the being cancelled

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.

  • 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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