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Cheap flights from Toronto Island Airport to Seattle from C$ 210

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
YTZ — SEA
3 ago. — 10 ago.1
1 adult

Cheap flight deals from Toronto Island to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Toronto Island (YTZ) to Seattle (SEA). 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 29 julio 2025.

Round-trip from

C$ 340

One-way from

C$ 210

Popular in

December

Cheapest in

February

Average price

C$ 551
Air Canada
  • Air Canada
  • 17/9-23/9
  • 2 total stops
  • 19h 40m total
  • Toronto to Seattle
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Air Canada
  • Air Canada
  • 30/8
  • 1 total stop
  • 8h 20m total
  • Toronto to Seattle
Search Deals
High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Toronto Island to Seattle

Cheapest flights from Toronto Island to Seattle
Explore the most affordable flight options available from Toronto Island to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 julio 2025.

mié. 17/912:25 p.m.YTZ - SEA
1 stop10h 06mAir Canada
mar. 23/97:15 a.m.SEA - YTZ
1 stop9h 34mAir Canada
Deal found 27/7C$ 340
mié. 10/97:00 a.m.YTZ - SEA
3 stops16h 29mMultiple Airlines
mié. 17/91:50 p.m.SEA - YTZ
3 stops25h 20mMultiple Airlines
Deal found 27/7C$ 513

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto Island to Seattle 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 629,999 searches. Data last updated 29 julio 2025.
Use the filters below to find and compare flights from Toronto Island Airport to Seattle that are best for you.

Fly from

Toronto Island

Fly to

Seattle

Route

Depart

Return

Price

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mié. 17/9

12:25 p.m.-7:31 p.m.

1 stop10h 06m

Seattle/Tacoma Intl

mar. 23/9

7:15 a.m.-7:49 p.m.

1 stop9h 34m

C$ 340

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

mié. 10/9

7:00 a.m.-8:29 p.m.

3 stops16h 29m

Seattle/Tacoma Intl

mié. 17/9

1:50 p.m.-6:10 p.m.

3 stops25h 20m

C$ 513

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

sáb. 30/8

3:25 p.m.-8:45 p.m.

1 stop8h 20m

C$ 210

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

sáb. 1/11

9:15 a.m.-6:04 p.m.

1 stop11h 49m

C$ 255

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Best time to book a flight from Toronto Island to Seattle

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

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 29 julio 2025.
Check out reviews from past customers who have flown with Air Canada from Toronto Island Airport to Seattle to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
9,822 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Crew

7.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Jadi-Ann,Jun 2025

YYZ - KIN

The flight was smooth with minor turbulence. The staff was courteous. Since I have an aeroplan account I was able to use the inflight wifi. I wanted extra space and the window seat and I had to pay for that. At first, I was okay with that, however, I felt that it was the same distance between for everyone. Maybe I could be wrong.
Air Canada
7.1
Good
9,822 reviews
Air Canada
7.1
Good
9,822 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Boarding

7.3

Food

6.3

Crew

7.8

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Jadi-Ann,Jun 2025

YYZ - KIN

The flight was smooth with minor turbulence. The staff was courteous. Since I have an aeroplan account I was able to use the inflight wifi. I wanted extra space and the window seat and I had to pay for that. At first, I was okay with that, however, I felt that it was the same distance between for everyone. Maybe I could be wrong.

Related info for your journey

Find useful and relevant information for your journey from Toronto Island to Seattle. 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 into for flights to Seattle from Toronto Island?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from Toronto Island to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Toronto Island on a regular basis. Booking flights from Toronto Island to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Toronto Island per day.

  • What is the cheapest airline to fly from Toronto Island Airport to Seattle round-trip?

    Cheapflights users have booked flights from Toronto Island Airport to Seattle round-trip from C$ 340.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Toronto Island Airport to Seattle (average of C$ 262). Flying from Toronto Island Airport to Seattle in December is currently the most expensive (average of C$ 353). 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.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Tukwila
Tacoma
Marysville
Bothell
Renton
Olympia
Lynnwood

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