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Cheap flights from Seattle to Toronto from $99

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 2/24. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
8:00 pm - 10:25 am
SEA
-
YTZ
11h 25m
2 stops
Air Canada Logo
3:35 pm - 10:10 pm
YTZ
-
SEA
9h 35m
2 stops
$230Air Canada
Mon, Mar 30 - Sat, Apr 4
Air Canada Logo
5:50 am - 9:32 pm
SEA
-
YTZ
12h 42m
2 stops
Air Canada Logo
3:35 pm - 10:10 pm
YTZ
-
SEA
9h 35m
2 stops
$233Air Canada
Sun, Mar 29 - Sat, Apr 4
Air Canada Logo
5:50 am - 6:13 pm
SEA
-
YTZ
9h 23m
2 stops
Air Canada Logo
9:30 am - 9:15 am
YTZ
-
SEA
26h 45m
2 stops
$262Air Canada
Thu, Jan 29 - Wed, Feb 4
Multiple Airlines Logo
11:08 pm - 4:43 pm
SEA
-
YTZ
14h 35m
2 stops
Multiple Airlines Logo
1:30 pm - 10:54 pm
YTZ
-
SEA
12h 24m
1 stop
$366Multiple Airlines
Sat, Feb 28 - Sat, Mar 7
Multiple Airlines Logo
5:55 pm - 6:57 pm
SEA
-
YTZ
22h 02m
1 stop
Multiple Airlines Logo
9:20 am - 6:40 pm
YTZ
-
SEA
12h 20m
1 stop
$369Multiple Airlines
Sat, Feb 14 - Thu, Feb 19
Multiple Airlines Logo
5:50 am - 8:50 pm
SEA
-
YTZ
12h 00m
2 stops
Multiple Airlines Logo
7:00 am - 10:10 pm
YTZ
-
SEA
18h 10m
2 stops
$371Multiple Airlines
Sun, Apr 12 - Sun, Apr 19
Multiple Airlines Logo
5:50 pm - 1:47 pm
SEA
-
YTZ
16h 57m
1 stop
Multiple Airlines Logo
2:45 pm - 7:02 am
YTZ
-
SEA
19h 17m
2 stops
$373Multiple Airlines
Wed, Feb 11 - Wed, Feb 18
Air Canada Logo
8:00 pm - 11:42 am
SEA
-
YTZ
12h 42m
2 stops
Air Canada Logo
10:45 am - 7:16 pm
YTZ
-
SEA
11h 31m
2 stops
$376Air Canada
Sat, Feb 14 - Tue, Feb 17
Multiple Airlines Logo
5:50 pm - 1:47 pm
SEA
-
YTZ
16h 57m
1 stop
Multiple Airlines Logo
9:20 am - 6:40 pm
YTZ
-
SEA
12h 20m
1 stop
$380Multiple Airlines
Wed, Feb 11 - Wed, Feb 18
Air Canada Logo
5:50 am - 6:17 pm
SEA
-
YTZ
9h 27m
2 stops
Air Canada Logo
3:35 pm - 10:10 pm
YTZ
-
SEA
9h 35m
2 stops
$381Air Canada
Wed, Apr 1 - Sat, Apr 4

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets
Air Canada
Mar 30
SEA8:00 pmSeattle/Tacoma Intl
11h 25m
2 stops
YTZ10:25 amToronto Island
Apr 4
YTZ3:35 pmToronto Island
9h 35m
2 stops
SEA10:10 pmSeattle/Tacoma Intl
$230
Air Canada
Mar 29
SEA5:50 amSeattle/Tacoma Intl
12h 42m
2 stops
YTZ9:32 pmToronto Island
Apr 4
YTZ3:35 pmToronto Island
9h 35m
2 stops
SEA10:10 pmSeattle/Tacoma Intl
$233
Air Canada
Jan 29
SEA5:50 amSeattle/Tacoma Intl
9h 23m
2 stops
YTZ6:13 pmToronto Island
Feb 4
YTZ9:30 amToronto Island
26h 45m
2 stops
SEA9:15 amSeattle/Tacoma Intl
$262

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 January 15, 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

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 3/30

8:00 pm-10:25 am

2 stops11h 25m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$230

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 3/29

5:50 am-9:32 pm

2 stops12h 42m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$233

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 1/29

5:50 am-6:13 pm

2 stops9h 23m

Toronto Island

Wed 2/4

9:30 am-9:15 am

2 stops26h 45m

$262

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 2/28

11:08 pm-4:43 pm

2 stops14h 35m

Toronto Island

Sat 3/7

1:30 pm-10:54 pm

1 stop12h 24m

$366

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 2/14

5:55 pm-6:57 pm

1 stop22h 02m

Toronto Island

Thu 2/19

9:20 am-6:40 pm

1 stop12h 20m

$369

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 4/12

5:50 am-8:50 pm

2 stops12h 00m

Toronto Island

Sun 4/19

7:00 am-10:10 pm

2 stops18h 10m

$371

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/11

5:50 pm-1:47 pm

1 stop16h 57m

Toronto Island

Wed 2/18

2:45 pm-7:02 am

2 stops19h 17m

$373

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 2/14

8:00 pm-11:42 am

2 stops12h 42m

Toronto Island

Tue 2/17

10:45 am-7:16 pm

2 stops11h 31m

$376

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/11

5:50 pm-1:47 pm

1 stop16h 57m

Toronto Island

Wed 2/18

9:20 am-6:40 pm

1 stop12h 20m

$380

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 4/1

5:50 am-6:17 pm

2 stops9h 27m

Toronto Island

Sat 4/4

3:35 pm-10:10 pm

2 stops9h 35m

$381

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 16m

Direct flights

None
The fastest flight from Seattle to Toronto Island Airport takes 7h 16m
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 7h 16m.

  • 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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