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.

$145 Cheap Flights from Toronto Island Airport to Seattle (YTZ-SEA) in 2025

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Find the cheapest flights from Toronto Island Airport to Seattle (YTZ-SEA)

Round-trip

One-way

Last minute

Cheap round-trip flights

4:10 pm - 10:16 pmYTZ-SEA

9h 06m2 stops

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$252Air Canada

Find Deal

Sun, Sep 21 - Tue, Sep 30

12:25 pm - 7:31 pmYTZ-SEA

10h 06m1 stop

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$254Air Canada

Find Deal

Sat, Sep 20 - Tue, Sep 30

12:25 pm - 7:31 pmYTZ-SEA

10h 06m1 stop

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$255Air Canada

Find Deal

Tue, Sep 23 - Fri, Sep 26

4:10 pm - 10:16 pmYTZ-SEA

9h 06m2 stops

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$260Air Canada

Find Deal

Tue, Sep 23 - Fri, Sep 26

12:25 pm - 7:31 pmYTZ-SEA

10h 06m1 stop

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$261Air Canada

Find Deal

Wed, Sep 17 - Tue, Sep 23

4:10 pm - 10:16 pmYTZ-SEA

9h 06m2 stops

5:30 am - 6:45 pmSEA-YTZ

10h 15m2 stops

$265Air Canada

Find Deal

Tue, Sep 23 - Fri, Sep 26

4:10 pm - 10:16 pmYTZ-SEA

9h 06m2 stops

5:30 am - 8:41 pmSEA-YTZ

12h 11m2 stops

$266Air Canada

Find Deal

Sun, Sep 21 - Tue, Sep 30

4:10 pm - 10:16 pmYTZ-SEA

9h 06m2 stops

7:15 am - 7:49 pmSEA-YTZ

9h 34m1 stop

$272Air Canada

Find Deal

Sun, Sep 7 - Tue, Sep 23

9:10 am - 10:39 pmYTZ-SEA

16h 29m2 stops

7:10 am - 8:02 pmSEA-YTZ

9h 52m1 stop

$409

Find Deal

Sun, Sep 21 - Tue, Sep 30

3:00 pm - 10:39 pmYTZ-SEA

10h 39m1 stop

6:41 am - 8:50 pmSEA-YTZ

11h 09m2 stops

$448

Find Deal

Sun, Sep 21 - Tue, Sep 30

Air Canada flights from Toronto Island Airport to Seattle

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

Air Canada

Sep 21

YTZ4:10 pmToronto Island

9h 06m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

Sep 30

SEA7:15 amSeattle/Tacoma Intl

9h 34m

1 stop

YTZ7:49 pmToronto Island

$252

Find similar

Air Canada

Sep 20

YTZ12:25 pmToronto Island

10h 06m

1 stop

SEA7:31 pmSeattle/Tacoma Intl

Sep 30

SEA7:15 amSeattle/Tacoma Intl

9h 34m

1 stop

YTZ7:49 pmToronto Island

$254

Find similar

Air Canada

Sep 23

YTZ12:25 pmToronto Island

10h 06m

1 stop

SEA7:31 pmSeattle/Tacoma Intl

Sep 26

SEA7:15 amSeattle/Tacoma Intl

9h 34m

1 stop

YTZ7:49 pmToronto Island

$255

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

Sun 9/21

4:10 pm-10:16 pm

2 stops9h 06m

Seattle/Tacoma Intl

Tue 9/30

7:15 am-7:49 pm

1 stop9h 34m

$252

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sat 9/20

12:25 pm-7:31 pm

1 stop10h 06m

Seattle/Tacoma Intl

Tue 9/30

7:15 am-7:49 pm

1 stop9h 34m

$254

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 9/23

12:25 pm-7:31 pm

1 stop10h 06m

Seattle/Tacoma Intl

Fri 9/26

7:15 am-7:49 pm

1 stop9h 34m

$255

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 9/23

4:10 pm-10:16 pm

2 stops9h 06m

Seattle/Tacoma Intl

Fri 9/26

7:15 am-7:49 pm

1 stop9h 34m

$260

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Wed 9/17

12:25 pm-7:31 pm

1 stop10h 06m

Seattle/Tacoma Intl

Tue 9/23

7:15 am-7:49 pm

1 stop9h 34m

$261

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Tue 9/23

4:10 pm-10:16 pm

2 stops9h 06m

Seattle/Tacoma Intl

Fri 9/26

5:30 am-6:45 pm

2 stops10h 15m

$265

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 9/21

4:10 pm-10:16 pm

2 stops9h 06m

Seattle/Tacoma Intl

Tue 9/30

5:30 am-8:41 pm

2 stops12h 11m

$266

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 9/7

4:10 pm-10:16 pm

2 stops9h 06m

Seattle/Tacoma Intl

Tue 9/23

7:15 am-7:49 pm

1 stop9h 34m

$272

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 9/21

9:10 am-10:39 pm

2 stops16h 29m

Seattle/Tacoma Intl

Tue 9/30

7:10 am-8:02 pm

1 stop9h 52m

$409

TorontoSeattle

YTZ - SEA

YTZSEA

Toronto Island

Sun 9/21

3:00 pm-10:39 pm

1 stop10h 39m

Seattle/Tacoma Intl

Tue 9/30

6:41 am-8:50 pm

2 stops11h 09m

$448

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 Thursday. momondo users have found tickets for Thursday departures for as low as $431. 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 $268 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $545. 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

Best Price Found	$145
Fastest flight time	8h 20m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from Toronto Island Airport in the past 72 hours is $145. The best round-trip flight deal from Toronto Island Airport to Seattle found on momondo in the last 72 hours is $252.

The fastest flight from Toronto Island Airport to Seattle takes 8h 20m

There are no direct flights from Toronto Island Airport to Seattle. Popular non-direct route for this connection is Toronto Island Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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 20m 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.

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Olympia

Renton

Kent

Federal Way

Lynnwood

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Marysville

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Lakewood

Fife

Cle Elum

Shoreline

Centralia

Westport

Redmond

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.