What is the cheapest airline that flies from Toronto Island to Seattle/Tacoma Intl?

Air Canada is the most popular carrier operating from Toronto Island to Seattle/Tacoma Intl

When did momondo last update prices for flights from Toronto Island Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Toronto Island Airport to Seattle/Tacoma Intl Airport were last updated today.

How old do you have to be to fly from Toronto Island Airport to Seattle/Tacoma Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto Island Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$183 Cheap Flights from Toronto Island Airport to Seattle in 2025/26

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Find the cheapest flights from Toronto Island Airport to Seattle

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 pm - 3:01 pmYTZ-SEA

23h 31m2 stops

8:00 pm - 9:30 amSEA-YTZ

10h 30m2 stops

$311Air Canada

Find Deal

Mon, Mar 2 - Tue, Mar 3

8:30 pm - 3:01 pmYTZ-SEA

21h 31m2 stops

8:00 pm - 9:30 amSEA-YTZ

10h 30m2 stops

$312Air Canada

Find Deal

Mon, Mar 2 - Tue, Mar 3

4:30 pm - 7:02 amYTZ-SEA

17h 32m2 stops

9:35 pm - 10:35 amSEA-YTZ

10h 00m1 stop

$441Multiple Airlines

Find Deal

Sun, Nov 30 - Sun, Dec 7

4:30 pm - 7:02 amYTZ-SEA

17h 32m2 stops

9:35 pm - 10:35 amSEA-YTZ

10h 00m1 stop

$443Multiple Airlines

Find Deal

Sun, Nov 30 - Sat, Dec 6

8:30 am - 7:16 pmYTZ-SEA

13h 46m2 stops

5:50 am - 11:42 amSEA-YTZ

26h 52m2 stops

$522Air Canada

Find Deal

Fri, Nov 21 - Sat, Nov 22

1:30 pm - 8:46 pmYTZ-SEA

10h 16m1 stop

11:10 pm - 10:03 pmSEA-YTZ

19h 53m2 stops

$543Multiple Airlines

Find Deal

Sat, Nov 15 - Thu, Nov 20

7:00 am - 8:51 pmYTZ-SEA

16h 51m2 stops

10:00 am - 9:15 pmSEA-YTZ

8h 15m1 stop

$546Multiple Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

3:30 pm - 9:31 amYTZ-SEA

21h 01m2 stops

10:05 am - 9:55 amSEA-YTZ

20h 50m2 stops

$556Air Canada

Find Deal

Tue, Dec 16 - Tue, Dec 23

6:30 pm - 9:31 amYTZ-SEA

18h 01m2 stops

10:05 am - 9:55 amSEA-YTZ

20h 50m2 stops

$572Air Canada

Find Deal

Mon, Dec 15 - Mon, Dec 22

2:05 pm - 7:36 amYTZ-SEA

20h 31m2 stops

7:55 pm - 4:48 pmSEA-YTZ

17h 53m2 stops

$579Multiple Airlines

Find Deal

Fri, Nov 28 - Fri, Dec 5

Air Canada flights from Toronto Island Airport to Seattle

Our best Air Canada deals on Toronto Island Airport to Seattle flight tickets

Air Canada

Mar 2

YTZ6:30 pmToronto Island

23h 31m

2 stops

SEA3:01 pmSeattle/Tacoma Intl

Mar 3

SEA8:00 pmSeattle/Tacoma Intl

10h 30m

2 stops

YTZ9:30 amToronto Island

$311

Find similar

Air Canada

Mar 2

YTZ8:30 pmToronto Island

21h 31m

2 stops

SEA3:01 pmSeattle/Tacoma Intl

Mar 3

SEA8:00 pmSeattle/Tacoma Intl

10h 30m

2 stops

YTZ9:30 amToronto Island

$312

Find similar

Air Canada

Nov 21

YTZ8:30 amToronto Island

13h 46m

2 stops

SEA7:16 pmSeattle/Tacoma Intl

Nov 22

SEA5:50 amSeattle/Tacoma Intl

26h 52m

2 stops

YTZ11:42 amToronto Island

$522

Find similar

Porter Airlines flights from Toronto Island Airport to Seattle

Our best Porter Airlines deals on Toronto Island Airport to Seattle flight tickets

Porter Airlines

Nov 7

YTZ10:30 amToronto Island

15h 20m

2 stops

SEA10:50 pmSeattle/Tacoma Intl

Nov 9

SEA9:34 pmSeattle/Tacoma Intl

10h 01m

1 stop

YTZ10:35 amToronto Island

$1,125

Find similar

Porter Airlines

Nov 7

YTZ7:00 amToronto Island

10h 31m

2 stops

SEA2:31 pmSeattle/Tacoma Intl

Nov 10

SEA8:44 amSeattle/Tacoma Intl

8h 16m

1 stop

YTZ8:00 pmToronto Island

$2,086

Find similar

momondo 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

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Mon 3/2

6:30 pm-3:01 pm

2 stops23h 31m

Seattle/Tacoma Intl

Tue 3/3

8:00 pm-9:30 am

2 stops10h 30m

$311

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Mon 3/2

8:30 pm-3:01 pm

2 stops21h 31m

Seattle/Tacoma Intl

Tue 3/3

8:00 pm-9:30 am

2 stops10h 30m

$312

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 11/30

4:30 pm-7:02 am

2 stops17h 32m

Seattle/Tacoma Intl

Sun 12/7

9:35 pm-10:35 am

1 stop10h 00m

$441

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 11/30

4:30 pm-7:02 am

2 stops17h 32m

Seattle/Tacoma Intl

Sat 12/6

9:35 pm-10:35 am

1 stop10h 00m

$443

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Fri 11/21

8:30 am-7:16 pm

2 stops13h 46m

Seattle/Tacoma Intl

Sat 11/22

5:50 am-11:42 am

2 stops26h 52m

$522

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sat 11/15

1:30 pm-8:46 pm

1 stop10h 16m

Seattle/Tacoma Intl

Thu 11/20

11:10 pm-10:03 pm

2 stops19h 53m

$543

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Wed 12/3

7:00 am-8:51 pm

2 stops16h 51m

Seattle/Tacoma Intl

Wed 12/10

10:00 am-9:15 pm

1 stop8h 15m

$546

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 12/16

3:30 pm-9:31 am

2 stops21h 01m

Seattle/Tacoma Intl

Tue 12/23

10:05 am-9:55 am

2 stops20h 50m

$556

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Mon 12/15

6:30 pm-9:31 am

2 stops18h 01m

Seattle/Tacoma Intl

Mon 12/22

10:05 am-9:55 am

2 stops20h 50m

$572

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Fri 11/28

2:05 pm-7:36 am

2 stops20h 31m

Seattle/Tacoma Intl

Fri 12/5

7:55 pm-4:48 pm

2 stops17h 53m

$579

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Toronto Island Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Toronto Island Airport is on a Friday. momondo users have found tickets for Friday departures for as low as $440. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Toronto Island Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $649.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Toronto Island Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $265 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $540. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Toronto Island Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Toronto Island Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Toronto Island Airport to Seattle (YTZ to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Island Airport to Seattle

Direct flights	None

There are no direct flights from Toronto Island Airport to Seattle. There are no popular flight routes from Toronto Island Airport to Seattle.

Search flight deals

How far is Toronto Island to Seattle/Tacoma Intl by plane?
There are 2064.9 mi between Toronto Island and Seattle/Tacoma Intl. 8h 46m is a normal flight duration for this route.
When did momondo last update prices for flights from Toronto Island Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Toronto Island Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Toronto Island Airport to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto Island Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Federal Way

Lakewood

Cle Elum

Fife

Centralia

Kirkland

Shoreline

Westport

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to Seattle?

It is quick and easy to find Toronto to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Toronto to Seattle with flexible booking policies on momondo?

Flights from Toronto to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Toronto to Seattle?

Once you have performed a search for Toronto to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Toronto to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Toronto to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.