How long is the flight from Toronto Island Airport to Seattle?

Airlines like United Airlines fly from Toronto Island Airport to Seattle in about 25h 19m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3323 km.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest time of day to fly from YTZ to SEA?

When flying from Toronto Island Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

C$ 329+ Cheap Flights from Toronto Island Airport to Seattle

Cheap flight deals from Toronto Island to Seattle

Enter your travel dates to find the best prices.

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Best

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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 26 October 2026.

Wed 16/124:35 p.m. -

1 stop19h 25m

Wed 13/14:29 p.m. -

2 stops19h 37m

Deal found 23/10C$ 672

Fri 18/1210:30 a.m. -

1 stop25h 30m

Wed 13/14:29 p.m. -

2 stops19h 37m

Deal found 21/10C$ 692

Thu 26/114:35 p.m. -

1 stop19h 06m

Wed 2/124:58 p.m. -

2 stops19h 02m

Deal found 23/10C$ 738

Wed 9/1212:15 p.m. -

2 stops12h 44m

Thu 7/18:11 a.m. -

1 stop9h 55m

Deal found 23/10C$ 740

Tue 8/1210:30 a.m. -

1 stop10h 41m

Tue 15/128:09 a.m. -

1 stop9h 56m

Deal found 24/10C$ 747

Tue 17/1110:30 a.m. -

1 stop11h 18m

Tue 24/118:08 a.m. -

1 stop9h 57m

Deal found 23/10C$ 749

Fri 13/114:35 p.m. -

2 stops25h 37m

Sun 22/119:42 p.m. -

1 stop12h 08m

Deal found 22/10C$ 755

Find flight deals from Toronto Island to Seattle

Round-trip from	C$ 672
One-way from	C$ 329
Popular in	June
Cheapest in	February
Average price	C$ 630

16/12-13/1
3 total stops
39h 02m total
Toronto to Seattle

Search Deals

6/12-31/12
3 total stops
29h 33m total
Toronto to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Toronto Island Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Tue 1/12

4:35 p.m.-8:57 a.m.

1 stop19h 22m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 409

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Sun 6/12

4:35 p.m.-8:57 a.m.

1 stop19h 22m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 429

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Tue 16/3

12:10 p.m.-9:38 p.m.

1 stop12h 28m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 466

Quickest round-trip

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Sat 7/11

9:50 a.m.-6:45 p.m.

1 stop11h 55m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 471

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Wed 31/3

12:10 p.m.-10:42 p.m.

1 stop13h 32m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 482

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Mon 9/11

7:00 a.m.-10:16 a.m.

2 stops30h 16m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 482

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Sun 8/11

12:05 p.m.-11:18 p.m.

2 stops14h 13m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 507

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Fri 1/1

10:30 a.m.-9:00 a.m.

1 stop25h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 513

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Sat 19/12

1:10 p.m.-5:10 p.m.

3 stops31h 00m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 515

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Fri 4/12

12:05 p.m.-10:24 a.m.

2 stops25h 19m

Seattle/Tacoma Intl

Tue 8/12

3:20 p.m.-4:42 p.m.

2 stops22h 22m

C$ 756

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 17 resultsSorted by cheapest first

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.

YTZ-SEA

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

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.
How long is the flight from Toronto Island Airport to Seattle?
Airlines like United Airlines fly from Toronto Island Airport to Seattle in about 25h 19m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3323 km.
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.

See more FAQs

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Cheapflights makes it easy to find Toronto Island to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Cheap flights from Toronto Island Airport to Seattle from C$ 329

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Toronto Island to Seattle

Cheapest flights from Toronto Island to SeattleExplore 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 26 October 2026.

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 26 October 2026.

Best flights from Toronto Island to SeattleDiscover carefully curated flight deals from Toronto Island to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Discover carefully curated flight deals from Toronto Island to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Toronto Island to SeattleDiscover last-minute flight deals from Toronto Island to Seattle. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Toronto Island to Seattle. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Toronto Island to SeattleSearch for one-way flight options from Toronto Island to Seattle. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Toronto Island to Seattle. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Find flight deals from Toronto Island to Seattle

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Use the filters below to find and compare flights from Toronto Island Airport to Seattle that are best for you.

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.

Related info for your journey

What airport do you fly into for flights to Seattle from Toronto Island?

How long is the flight from Toronto Island Airport to Seattle?

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

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

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

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Toronto Island to Seattle

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Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Toronto Island to Seattle by cabin class

Find flights from Toronto Island to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Toronto Island and Seattle flights

Browse other Toronto Island and Seattle flight options. Last updated on 26 October 2026.

Other flights from Toronto Island

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Other flights to Seattle

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Can Cheapflights notify me if prices for flights from Toronto Island to Seattle become cheaper?

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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 26 October 2026.

Best flights from Toronto Island to Seattle
Discover carefully curated flight deals from Toronto Island to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 26 October 2026.

Last-minute flights from Toronto Island to Seattle
Discover last-minute flight deals from Toronto Island to Seattle. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Toronto Island to Seattle
Search for one-way flight options from Toronto Island to Seattle. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.