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.

$250 Cheap Flights from Toronto Island Airport to Seattle in 2026/27

Find the cheapest flights from Toronto Island Airport to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 am - 9:32 amYTZ Toronto Island-SEA Seattle/Tacoma Intl

28h 02m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

7:05 pm - 11:51 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

13h 46m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

$471Air Canada

Fri, Dec 4 - Tue, Dec 8

10:29 am - 6:11 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

10h 42m1 stop Chicago O'Hare Intl

11:40 pm - 3:00 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

12h 20m1 stop Chicago O'Hare Intl

$568Multiple Airlines

Fri, Dec 4 - Sun, Dec 6

10:29 am - 8:28 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 59m1 stop Chicago O'Hare Intl

10:22 am - 9:05 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

7h 43m1 stop Chicago O'Hare Intl

$572Multiple Airlines

Thu, Dec 3 - Sun, Dec 6

10:29 am - 6:11 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

10h 42m1 stop Chicago O'Hare Intl

8:09 am - 9:05 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

9h 56m1 stop Chicago O'Hare Intl

$575Multiple Airlines

Sat, Dec 5 - Sat, Dec 12

10:29 am - 6:11 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

10h 42m1 stop Chicago O'Hare Intl

10:22 am - 9:05 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

7h 43m1 stop Chicago O'Hare Intl

$580Multiple Airlines

Fri, Dec 11 - Mon, Dec 14

9:10 am - 8:27 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

14h 17m1 stop Washington, D.C. Dulles Intl

8:15 am - 7:55 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

8h 40m1 stop Washington, D.C. Dulles Intl

$583Multiple Airlines

Thu, Dec 3 - Mon, Dec 7

5:15 pm - 1:40 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

23h 25m3 stops Ottawa Halifax Intl Calgary

4:58 pm - 6:15 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

22h 17m2 stops Denver Intl Nashville Intl

$585Multiple Airlines

Mon, Nov 30 - Mon, Dec 7

12:15 pm - 9:59 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 44m2 stops Ottawa Newark

10:40 pm - 9:39 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

7h 59m1 stop Newark

$590Multiple Airlines

Thu, Dec 3 - Sat, Dec 5

10:29 am - 8:28 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 59m1 stop Chicago O'Hare Intl

8:09 am - 9:05 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

9h 56m1 stop Chicago O'Hare Intl

$594Multiple Airlines

Wed, Dec 2 - Mon, Dec 7

10:29 am - 8:28 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 59m1 stop Chicago O'Hare Intl

10:22 am - 9:05 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

7h 43m1 stop Chicago O'Hare Intl

$595Multiple Airlines

Thu, Dec 3 - Wed, Dec 9

Cheap last minute flights

Enter your travel dates to find the best prices.

7:10 pm - 10:16 amYTZ Toronto Island-SEA Seattle/Tacoma Intl

18h 06m1 stop Newark

4:27 pm - 3:00 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

19h 33m2 stops Denver Intl Chicago O'Hare Intl

$827Multiple Airlines

Mon, Nov 9 - Sat, Nov 14

12:10 pm - 9:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 35m1 stop Newark

9:18 pm - 6:28 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

18h 10m2 stops Newark Ottawa

$915Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

9:50 am - 6:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

11h 55m1 stop Newark

9:18 pm - 9:39 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

9h 21m1 stop Newark

$916Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

9:50 am - 9:48 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

14h 58m1 stop Newark

11:42 pm - 3:00 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

12h 18m1 stop Chicago O'Hare Intl

$920Multiple Airlines

Mon, Nov 9 - Sat, Nov 14

12:10 pm - 9:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 35m1 stop Newark

9:18 pm - 6:28 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

18h 10m2 stops Newark Ottawa

$936Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

9:50 am - 6:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

11h 55m1 stop Newark

9:18 pm - 11:19 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

11h 01m1 stop Newark

$937Multiple Airlines

Mon, Nov 9 - Mon, Nov 9

12:10 pm - 9:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

12h 35m1 stop Newark

9:18 pm - 6:28 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

18h 10m2 stops Newark Ottawa

$938Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

7:00 am - 6:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

14h 45m2 stops Ottawa Newark

9:18 pm - 11:19 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

11h 01m1 stop Newark

$952Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

9:50 am - 6:45 pmYTZ Toronto Island-SEA Seattle/Tacoma Intl

11h 55m1 stop Newark

9:18 pm - 9:39 amSEA Seattle/Tacoma Intl-YTZ Toronto Island

9h 21m1 stop Newark

$955Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

1:10 pm - 10:10 amYTZ Toronto Island-SEA Seattle/Tacoma Intl

24h 00m2 stops Nashville Intl Guadalajara Miguel Hidal

4:27 pm - 6:15 pmSEA Seattle/Tacoma Intl-YTZ Toronto Island

22h 48m3 stops Denver Intl Minneapolis St Paul Nashville Intl

$971Multiple Airlines

Tue, Nov 10 - Wed, Nov 11

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Air Canada flights from Toronto Island Airport to Seattle

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

Air Canada

Dec 4

YTZ8:30 amToronto Island

28h 02m

2 stops

SEA9:32 amSeattle/Tacoma Intl

Dec 8

SEA7:05 pmSeattle/Tacoma Intl

13h 46m

2 stops

YTZ11:51 amToronto Island

$471

Air Canada

Nov 16

YTZ6:30 pmToronto Island

23h 02m

2 stops

SEA2:32 pmSeattle/Tacoma Intl

Nov 19

SEA10:10 amSeattle/Tacoma Intl

20h 01m

2 stops

YTZ9:11 amToronto Island

$889

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

Cheapest round-trip

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Fri 12/4

8:30 am-9:32 am

2 stops28h 02m

Seattle/Tacoma Intl

Tue 12/8

7:05 pm-11:51 am

2 stops13h 46m

$471

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Fri 12/4

10:29 am-6:11 pm

1 stop10h 42m

Seattle/Tacoma Intl

Sun 12/6

11:40 pm-3:00 pm

1 stop12h 20m

$568

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Thu 12/3

10:29 am-8:28 pm

1 stop12h 59m

Seattle/Tacoma Intl

Sun 12/6

10:22 am-9:05 pm

1 stop7h 43m

$572

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Sat 12/5

10:29 am-6:11 pm

1 stop10h 42m

Seattle/Tacoma Intl

Sat 12/12

8:09 am-9:05 pm

1 stop9h 56m

$575

Quickest round-trip

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Fri 12/11

10:29 am-6:11 pm

1 stop10h 42m

Seattle/Tacoma Intl

Mon 12/14

10:22 am-9:05 pm

1 stop7h 43m

$580

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Thu 12/3

9:10 am-8:27 pm

1 stop14h 17m

Seattle/Tacoma Intl

Mon 12/7

8:15 am-7:55 pm

1 stop8h 40m

$583

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Mon 11/30

5:15 pm-1:40 pm

3 stops23h 25m

Seattle/Tacoma Intl

Mon 12/7

4:58 pm-6:15 pm

2 stops22h 17m

$585

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Thu 12/3

12:15 pm-9:59 pm

2 stops12h 44m

Seattle/Tacoma Intl

Sat 12/5

10:40 pm-9:39 am

1 stop7h 59m

$590

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Wed 12/2

10:29 am-8:28 pm

1 stop12h 59m

Seattle/Tacoma Intl

Mon 12/7

8:09 am-9:05 pm

1 stop9h 56m

$594

TorontoSeattle

YTZ Toronto Island - SEA Seattle/Tacoma Intl

YTZSEA

Toronto Island

Thu 12/3

10:29 am-8:28 pm

1 stop12h 59m

Seattle/Tacoma Intl

Wed 12/9

10:22 am-9:05 pm

1 stop7h 43m

$595

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 $519. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $804.

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 $477 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $588. Departure times in the afternoon 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	$250
Fastest flight time	9h 44m
Direct flights	None

The best one-way flight to Seattle from Toronto Island Airport in the past 72 hours is $250. The best round-trip flight deal from Toronto Island Airport to Seattle found on momondo in the last 72 hours is $471.

The fastest flight from Toronto Island Airport to Seattle takes 9h 44m

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

Frequently asked questions about flying from Toronto Island Airport to Seattle

How far is Toronto Island to Seattle/Tacoma Intl by plane?
There are 2064.9 mi between Toronto Island and Seattle/Tacoma Intl. 9h 44m 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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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.