Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Toronto from $116

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 2/18. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:40 am - 6:10 pm
SEA
-
YTZ
9h 30m
2 stops
Air Canada Logo
12:30 pm - 10:56 pm
YTZ
-
SEA
13h 26m
2 stops
$278Air Canada
Fri, Mar 13 - Fri, Mar 20
Air Canada Logo
7:15 am - 7:52 pm
SEA
-
YTZ
9h 37m
1 stop
Air Canada Logo
12:30 pm - 7:37 pm
YTZ
-
SEA
10h 07m
1 stop
$282Air Canada
Tue, May 12 - Sun, May 17
Air Canada Logo
5:40 am - 6:10 pm
SEA
-
YTZ
9h 30m
2 stops
Air Canada Logo
12:30 pm - 10:56 pm
YTZ
-
SEA
13h 26m
2 stops
$306Air Canada
Fri, Mar 13 - Fri, Mar 20
Air Canada Logo
7:15 am - 9:32 pm
SEA
-
YTZ
11h 17m
1 stop
Air Canada Logo
12:30 pm - 7:37 pm
YTZ
-
SEA
10h 07m
1 stop
$323Air Canada
Thu, May 14 - Mon, May 18
Air Canada Logo
8:00 pm - 9:42 am
SEA
-
YTZ
10h 42m
2 stops
Air Canada Logo
12:30 pm - 10:56 pm
YTZ
-
SEA
13h 26m
2 stops
$358Air Canada
Sat, Mar 14 - Sat, Mar 21
Air Canada Logo
7:15 am - 9:32 pm
SEA
-
YTZ
11h 17m
1 stop
Air Canada Logo
12:30 pm - 7:37 pm
YTZ
-
SEA
10h 07m
1 stop
$360Air Canada
Sat, May 23 - Wed, May 27
Multiple Airlines Logo
5:40 am - 6:10 pm
SEA
-
YTZ
9h 30m
2 stops
Multiple Airlines Logo
5:25 pm - 9:31 am
YTZ
-
SEA
19h 06m
3 stops
$404Multiple Airlines
Fri, Mar 13 - Fri, Mar 20
Air Canada Logo
8:00 pm - 9:42 am
SEA
-
YTZ
10h 42m
2 stops
Air Canada Logo
12:30 pm - 10:56 pm
YTZ
-
SEA
13h 26m
2 stops
$417Air Canada
Sat, Mar 14 - Sat, Mar 21
Multiple Airlines Logo
5:55 pm - 1:47 pm
SEA
-
YTZ
16h 52m
1 stop
Multiple Airlines Logo
9:15 am - 6:40 pm
YTZ
-
SEA
12h 25m
1 stop
$434Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Air Canada Logo
9:55 am - 7:17 am
SEA
-
YTZ
18h 22m
2 stops
Air Canada Logo
6:55 pm - 2:20 pm
YTZ
-
SEA
22h 25m
2 stops
$448Air Canada
Mon, May 25 - Thu, May 28

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 13
SEA5:40 amSeattle/Tacoma Intl
9h 30m
2 stops
YTZ6:10 pmToronto Island
Mar 20
YTZ12:30 pmToronto Island
13h 26m
2 stops
SEA10:56 pmSeattle/Tacoma Intl
$278
Air Canada
May 12
SEA7:15 amSeattle/Tacoma Intl
9h 37m
1 stop
YTZ7:52 pmToronto Island
May 17
YTZ12:30 pmToronto Island
10h 07m
1 stop
SEA7:37 pmSeattle/Tacoma Intl
$282
Air Canada
Mar 13
SEA5:40 amSeattle/Tacoma Intl
9h 30m
2 stops
YTZ6:10 pmToronto Island
Mar 20
YTZ12:30 pmToronto Island
13h 26m
2 stops
SEA10:56 pmSeattle/Tacoma Intl
$306

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 29, 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

Fri 3/13

5:40 am-6:10 pm

2 stops9h 30m

Toronto Island

Fri 3/20

12:30 pm-10:56 pm

2 stops13h 26m

$278

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 5/12

7:15 am-7:52 pm

1 stop9h 37m

Toronto Island

Sun 5/17

12:30 pm-7:37 pm

1 stop10h 07m

$282

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 3/13

5:40 am-6:10 pm

2 stops9h 30m

Toronto Island

Fri 3/20

12:30 pm-10:56 pm

2 stops13h 26m

$306

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 5/14

7:15 am-9:32 pm

1 stop11h 17m

Toronto Island

Mon 5/18

12:30 pm-7:37 pm

1 stop10h 07m

$323

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 3/14

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

Sat 3/21

12:30 pm-10:56 pm

2 stops13h 26m

$358

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 5/23

7:15 am-9:32 pm

1 stop11h 17m

Toronto Island

Wed 5/27

12:30 pm-7:37 pm

1 stop10h 07m

$360

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 3/13

5:40 am-6:10 pm

2 stops9h 30m

Toronto Island

Fri 3/20

5:25 pm-9:31 am

3 stops19h 06m

$404

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 3/14

8:00 pm-9:42 am

2 stops10h 42m

Toronto Island

Sat 3/21

12:30 pm-10:56 pm

2 stops13h 26m

$417

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 2/25

5:55 pm-1:47 pm

1 stop16h 52m

Toronto Island

Wed 3/4

9:15 am-6:40 pm

1 stop12h 25m

$434

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 5/25

9:55 am-7:17 am

2 stops18h 22m

Toronto Island

Thu 5/28

6:55 pm-2:20 pm

2 stops22h 25m

$448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 14m

Direct flights

None
The fastest flight from Seattle to Toronto Island Airport takes 7h 14m
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 14m.

  • 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Toronto