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Cheap flights from Seattle to Toronto from $98

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 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 pm - 9:42 am
SEA
-
YTZ
10h 42m2 stops
Air Canada Logo
12:30 pm - 9:31 am
YTZ
-
SEA
24h 01m2 stops
$318Air Canada
Wed, Jan 21 - Wed, Jan 28
Air Canada Logo
8:00 pm - 9:42 am
SEA
-
YTZ
10h 42m2 stops
Air Canada Logo
8:30 pm - 7:16 pm
YTZ
-
SEA
25h 46m2 stops
$339Air Canada
Mon, Jan 19 - Mon, Jan 26
Air Canada Logo
8:20 am - 9:31 pm
SEA
-
YTZ
10h 11m1 stop
Air Canada Logo
12:30 pm - 7:41 pm
YTZ
-
SEA
10h 11m1 stop
$426Air Canada
Sat, May 23 - Mon, Jun 1
Air Canada Logo
5:50 am - 6:13 pm
SEA
-
YTZ
9h 23m2 stops
Air Canada Logo
10:30 am - 9:31 am
YTZ
-
SEA
26h 01m2 stops
$431Air Canada
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
10:09 am - 10:10 pm
SEA
-
YTZ
9h 01m1 stop
Multiple Airlines Logo
3:00 pm - 9:28 pm
YTZ
-
SEA
9h 28m1 stop
$439Multiple Airlines
Fri, Jan 16 - Thu, Jan 22
Multiple Airlines Logo
8:32 am - 4:13 pm
SEA
-
YTZ
28h 41m2 stops
Multiple Airlines Logo
7:40 pm - 9:28 pm
YTZ
-
SEA
28h 48m1 stop
$449Multiple Airlines
Mon, Jan 19 - Mon, Jan 26
Multiple Airlines Logo
10:09 am - 10:10 pm
SEA
-
YTZ
9h 01m1 stop
Multiple Airlines Logo
3:00 pm - 9:28 pm
YTZ
-
SEA
9h 28m1 stop
$451Multiple Airlines
Tue, Jan 20 - Thu, Jan 22
Multiple Airlines Logo
10:09 am - 10:10 pm
SEA
-
YTZ
9h 01m1 stop
Multiple Airlines Logo
3:00 pm - 9:28 pm
YTZ
-
SEA
9h 28m1 stop
$454Multiple Airlines
Wed, Jan 21 - Thu, Jan 22
Air Canada Logo
8:00 pm - 11:42 am
SEA
-
YTZ
12h 42m2 stops
Air Canada Logo
10:30 am - 10:06 pm
YTZ
-
SEA
14h 36m2 stops
$470Air Canada
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
10:09 am - 10:10 pm
SEA
-
YTZ
9h 01m1 stop
Multiple Airlines Logo
12:30 pm - 7:55 pm
YTZ
-
SEA
10h 25m1 stop
$472Multiple Airlines
Mon, Jan 12 - Thu, Jan 22

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets
Air Canada
Jan 21
SEA8:00 pmSeattle/Tacoma Intl
10h 42m
2 stops
YTZ9:42 amToronto Island
Jan 28
YTZ12:30 pmToronto Island
24h 01m
2 stops
SEA9:31 amSeattle/Tacoma Intl
$318
Find similar
Air Canada
Jan 19
SEA8:00 pmSeattle/Tacoma Intl
10h 42m
2 stops
YTZ9:42 amToronto Island
Jan 26
YTZ8:30 pmToronto Island
25h 46m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$339
Find similar
Air Canada
Jan 21
SEA5:50 amSeattle/Tacoma Intl
9h 23m
2 stops
YTZ6:13 pmToronto Island
Jan 28
YTZ10:30 amToronto Island
11h 46m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$416
Find similar

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 December 7, 2025.
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

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 1/21

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

Wed 1/28

12:30 pm-9:31 am

2 stops24h 01m

$318

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 1/19

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

Mon 1/26

8:30 pm-7:16 pm

2 stops25h 46m

$339

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 5/23

8:20 am-9:31 pm

1 stop10h 11m

Toronto Island

Mon 6/1

12:30 pm-7:41 pm

1 stop10h 11m

$426

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 1/23

5:50 am-6:13 pm

2 stops9h 23m

Toronto Island

Sun 1/25

10:30 am-9:31 am

2 stops26h 01m

$431

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 1/16

10:09 am-10:10 pm

1 stop9h 01m

Toronto Island

Thu 1/22

3:00 pm-9:28 pm

1 stop9h 28m

$439

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 1/19

8:32 am-4:13 pm

2 stops28h 41m

Toronto Island

Mon 1/26

7:40 pm-9:28 pm

1 stop28h 48m

$449

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 1/20

10:09 am-10:10 pm

1 stop9h 01m

Toronto Island

Thu 1/22

3:00 pm-9:28 pm

1 stop9h 28m

$451

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 1/21

10:09 am-10:10 pm

1 stop9h 01m

Toronto Island

Thu 1/22

3:00 pm-9:28 pm

1 stop9h 28m

$454

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 1/23

8:00 pm-11:42 am

2 stops12h 42m

Toronto Island

Sun 1/25

10:30 am-10:06 pm

2 stops14h 36m

$470

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 1/12

10:09 am-10:10 pm

1 stop9h 01m

Toronto Island

Thu 1/22

12:30 pm-7:55 pm

1 stop10h 25m

$472

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

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

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 42m

Direct flights

None
The fastest flight from Seattle to Toronto Island Airport takes 7h 42m
There are no direct flights from Seattle to Toronto Island Airport. There are no popular flight routes from Seattle to Toronto Island Airport.
Search flight deals

  • 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 8h 04m.

  • 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.

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