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Cheap flights from Seattle to Toronto from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Toronto departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$520Multiple Airlines
Tue, Aug 25 - Sat, Aug 29
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$526Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:44 pm
YTZ
-
SEA
10h 04m
1 stop
$527Multiple Airlines
Mon, Aug 31 - Tue, Sep 8
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$541Multiple Airlines
Tue, Aug 25 - Mon, Aug 31
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$542Multiple Airlines
Wed, Aug 26 - Mon, Aug 31
Multiple Airlines Logo
7:00 am - 9:47 am
SEA
-
YTZ
23h 47m
2 stops
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$550Multiple Airlines
Fri, Aug 21 - Tue, Aug 25
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
9:15 am - 8:33 pm
YTZ
-
SEA
14h 18m
1 stop
$551Multiple Airlines
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
7:06 pm - 4:00 pm
SEA
-
YTZ
17h 54m
2 stops
Multiple Airlines Logo
1:45 pm - 11:04 pm
YTZ
-
SEA
12h 19m
1 stop
$553Multiple Airlines
Fri, Aug 7 - Tue, Aug 11
Multiple Airlines Logo
7:06 pm - 4:00 pm
SEA
-
YTZ
17h 54m
2 stops
Multiple Airlines Logo
1:45 pm - 11:04 pm
YTZ
-
SEA
12h 19m
1 stop
$554Multiple Airlines
Tue, Aug 4 - Wed, Aug 12
Multiple Airlines Logo
9:35 pm - 12:55 pm
SEA
-
YTZ
12h 20m
1 stop
Multiple Airlines Logo
1:40 pm - 8:34 pm
YTZ
-
SEA
9h 54m
1 stop
$556Multiple Airlines
Fri, Sep 4 - Sun, Sep 6

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Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets
Air Canada
Sep 11
SEA5:50 amSeattle/Tacoma Intl
12h 40m
2 stops
YTZ9:30 pmToronto Island
Sep 24
YTZ10:45 amToronto Island
15h 02m
2 stops
SEA10:47 pmSeattle/Tacoma Intl
$616
Air Canada
Aug 4
SEA10:40 amSeattle/Tacoma Intl
18h 11m
2 stops
YTZ7:51 amToronto Island
Aug 11
YTZ12:30 pmToronto Island
13h 12m
2 stops
SEA10:42 pmSeattle/Tacoma Intl
$717
Air Canada
Aug 2
SEA10:40 amSeattle/Tacoma Intl
23h 35m
2 stops
YTZ1:15 pmToronto Island
Aug 11
YTZ6:30 pmToronto Island
18h 35m
2 stops
SEA10:05 amSeattle/Tacoma Intl
$735

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Toronto Island Airport 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, momondo users made 832,500 searches. Data last updated July 22, 2026.
Use the filters below to find and compare flights from Seattle to Toronto Island Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 8/25

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Sat 8/29

1:40 pm-8:34 pm

1 stop9h 54m

$520

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 8/26

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Tue 9/1

1:40 pm-8:34 pm

1 stop9h 54m

$526

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 8/31

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Tue 9/8

1:40 pm-8:44 pm

1 stop10h 04m

$527

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 8/25

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Mon 8/31

1:40 pm-8:34 pm

1 stop9h 54m

$541

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 8/26

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Mon 8/31

1:40 pm-8:34 pm

1 stop9h 54m

$542

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 8/21

7:00 am-9:47 am

2 stops23h 47m

Toronto Island

Tue 8/25

1:40 pm-8:34 pm

1 stop9h 54m

$550

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 9/19

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Sat 9/26

9:15 am-8:33 pm

1 stop14h 18m

$551

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 8/7

7:06 pm-4:00 pm

2 stops17h 54m

Toronto Island

Tue 8/11

1:45 pm-11:04 pm

1 stop12h 19m

$553

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 8/4

7:06 pm-4:00 pm

2 stops17h 54m

Toronto Island

Wed 8/12

1:45 pm-11:04 pm

1 stop12h 19m

$554

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 9/4

9:35 pm-12:55 pm

1 stop12h 20m

Toronto Island

Sun 9/6

1:40 pm-8:34 pm

1 stop9h 54m

$556

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Toronto from

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

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

Can stopping save me money on Seattle to Toronto Island Airport flights?

You could potentially save up to 54% on your flight if you consider stops on a Seattle to Toronto Island Airport flight.

When to book flights from Seattle to Toronto Island Airport

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

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

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

Fastest flight time

7h 27m

Direct flights

None
The fastest flight from Seattle to Toronto Island Airport takes 7h 27m
There are no direct flights from Seattle to Toronto Island Airport. There are no popular flight routes from Seattle to Toronto Island Airport.
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Frequently asked questions about flying from Seattle to Toronto Island Airport

  • How far is Seattle/Tacoma Intl to Toronto Island by plane?

    A flight from Seattle/Tacoma Intl to Toronto Island will travel around 2064.9 mi. In terms of flight time, this usually takes a little over 7h 27m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Toronto Island Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Toronto Island Airport.

  • What documentation or ID do you need to fly to Toronto Island Airport?

    The travel and health documents you'll need for your trip to Toronto Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Toronto Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Toronto from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Toronto quick and easy, saving you time and money.

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

All flight searches from Seattle to Toronto on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Toronto from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Toronto from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Toronto Island Airport trip

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