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Cheap flights from Seattle to Toronto from C$ 169

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 18/1. 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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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 p.m. - 9:42 a.m.
SEA
-
YTZ
10h 42m2 stops
Air Canada Logo
8:30 p.m. - 2:31 p.m.
YTZ
-
SEA
21h 01m2 stops
C$ 397Air Canada
Fri, 30 Jan - Fri, 6 Feb
Air Canada Logo
5:50 a.m. - 6:13 p.m.
SEA
-
YTZ
9h 23m2 stops
Air Canada Logo
3:30 p.m. - 9:31 a.m.
YTZ
-
SEA
21h 01m2 stops
C$ 417Air Canada
Sat, 17 Jan - Sat, 24 Jan
Air Canada Logo
8:00 p.m. - 11:42 a.m.
SEA
-
YTZ
12h 42m2 stops
Air Canada Logo
6:30 p.m. - 2:31 p.m.
YTZ
-
SEA
23h 01m2 stops
C$ 427Air Canada
Sat, 31 Jan - Sat, 7 Feb
Air Canada Logo
8:00 p.m. - 9:42 a.m.
SEA
-
YTZ
10h 42m2 stops
Air Canada Logo
6:30 p.m. - 2:31 p.m.
YTZ
-
SEA
23h 01m2 stops
C$ 428Air Canada
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
5:50 a.m. - 6:13 p.m.
SEA
-
YTZ
9h 23m2 stops
Multiple Airlines Logo
4:30 p.m. - 10:25 a.m.
YTZ
-
SEA
20h 55m3 stops
C$ 441Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Air Canada Logo
8:00 p.m. - 11:42 a.m.
SEA
-
YTZ
12h 42m2 stops
Air Canada Logo
8:30 p.m. - 7:16 p.m.
YTZ
-
SEA
25h 46m2 stops
C$ 453Air Canada
Sat, 17 Jan - Tue, 20 Jan
Multiple Airlines Logo
11:55 a.m. - 9:42 a.m.
SEA
-
YTZ
18h 47m3 stops
Multiple Airlines Logo
4:30 p.m. - 10:25 a.m.
YTZ
-
SEA
20h 55m3 stops
C$ 500Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
5:45 p.m. - 9:20 p.m.
SEA
-
YTZ
24h 35m2 stops
Multiple Airlines Logo
12:30 p.m. - 9:28 p.m.
YTZ
-
SEA
11h 58m1 stop
C$ 525Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
3:10 p.m. - 4:13 p.m.
SEA
-
YTZ
22h 03m2 stops
Multiple Airlines Logo
1:30 p.m. - 9:28 p.m.
YTZ
-
SEA
10h 58m1 stop
C$ 535Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Air Canada Logo
8:00 p.m. - 9:42 a.m.
SEA
-
YTZ
10h 42m2 stops
Air Canada Logo
8:30 a.m. - 9:15 a.m.
YTZ
-
SEA
27h 45m2 stops
C$ 543Air Canada
Fri, 23 Jan - Sun, 25 Jan

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets
Air Canada
30 Jan
SEA8:00 p.m.Seattle/Tacoma Intl
10h 42m
2 stops
YTZ9:42 a.m.Toronto Island
6 Feb
YTZ8:30 p.m.Toronto Island
21h 01m
2 stops
SEA2:31 p.m.Seattle/Tacoma Intl
C$ 397
Find similar
Air Canada
17 Jan
SEA5:50 a.m.Seattle/Tacoma Intl
9h 23m
2 stops
YTZ6:13 p.m.Toronto Island
24 Jan
YTZ3:30 p.m.Toronto Island
21h 01m
2 stops
SEA9:31 a.m.Seattle/Tacoma Intl
C$ 417
Find similar
Air Canada
31 Jan
SEA8:00 p.m.Seattle/Tacoma Intl
12h 42m
2 stops
YTZ11:42 a.m.Toronto Island
7 Feb
YTZ6:30 p.m.Toronto Island
23h 01m
2 stops
SEA2:31 p.m.Seattle/Tacoma Intl
C$ 427
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 96,600 searches. Data last updated 18 December 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

Fri 30/1

8:00 p.m.-9:42 a.m.

2 stops10h 42m

Toronto Island

Fri 6/2

8:30 p.m.-2:31 p.m.

2 stops21h 01m

C$ 397

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 17/1

5:50 a.m.-6:13 p.m.

2 stops9h 23m

Toronto Island

Sat 24/1

3:30 p.m.-9:31 a.m.

2 stops21h 01m

C$ 417

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 31/1

8:00 p.m.-11:42 a.m.

2 stops12h 42m

Toronto Island

Sat 7/2

6:30 p.m.-2:31 p.m.

2 stops23h 01m

C$ 427

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 31/1

8:00 p.m.-9:42 a.m.

2 stops10h 42m

Toronto Island

Sat 7/2

6:30 p.m.-2:31 p.m.

2 stops23h 01m

C$ 428

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 30/1

5:50 a.m.-6:13 p.m.

2 stops9h 23m

Toronto Island

Fri 6/2

4:30 p.m.-10:25 a.m.

3 stops20h 55m

C$ 441

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 17/1

8:00 p.m.-11:42 a.m.

2 stops12h 42m

Toronto Island

Tue 20/1

8:30 p.m.-7:16 p.m.

2 stops25h 46m

C$ 453

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 30/1

11:55 a.m.-9:42 a.m.

3 stops18h 47m

Toronto Island

Fri 6/2

4:30 p.m.-10:25 a.m.

3 stops20h 55m

C$ 500

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 31/1

5:45 p.m.-9:20 p.m.

2 stops24h 35m

Toronto Island

Sat 7/2

12:30 p.m.-9:28 p.m.

1 stop11h 58m

C$ 525

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 30/1

3:10 p.m.-4:13 p.m.

2 stops22h 03m

Toronto Island

Fri 6/2

1:30 p.m.-9:28 p.m.

1 stop10h 58m

C$ 535

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 23/1

8:00 p.m.-9:42 a.m.

2 stops10h 42m

Toronto Island

Sun 25/1

8:30 a.m.-9:15 a.m.

2 stops27h 45m

C$ 543

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?

    Toronto Island is 3323.2 km away from Seattle/Tacoma Intl. Flights usually cover this in 7h 16m, depending on flying conditions and air traffic around both airports.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required for your trip to Toronto Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Toronto Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Apsley

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 recognizable 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?

Flights from Seattle to Toronto 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 Seattle to Toronto?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Toronto from Seattle.

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

If you are not ready to book a flight from Seattle to Toronto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Toronto and let you know when they change.

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.
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