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Cheap flights from Seattle to Toronto from C$ 196

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 30/5. 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

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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
7:20 p.m. - 10:12 a.m.
SEA
-
YTZ
11h 52m
2 stops
Air Canada Logo
6:55 p.m. - 10:05 a.m.
YTZ
-
SEA
18h 10m
2 stops
C$ 426Air Canada
Sat, 9 May - Sat, 16 May
Air Canada Logo
10:20 a.m. - 10:25 a.m.
SEA
-
YTZ
21h 05m
2 stops
Air Canada Logo
6:55 p.m. - 10:05 a.m.
YTZ
-
SEA
18h 10m
2 stops
C$ 434Air Canada
Thu, 23 Apr - Fri, 1 May
Air Canada Logo
8:00 p.m. - 10:25 a.m.
SEA
-
YTZ
11h 25m
2 stops
Air Canada Logo
6:50 a.m. - 7:20 p.m.
YTZ
-
SEA
15h 30m
2 stops
C$ 441Air Canada
Tue, 21 Apr - Wed, 29 Apr
Air Canada Logo
8:00 p.m. - 6:22 p.m.
SEA
-
YTZ
19h 22m
2 stops
Air Canada Logo
6:55 p.m. - 3:05 p.m.
YTZ
-
SEA
23h 10m
2 stops
C$ 483Air Canada
Sat, 11 Apr - Tue, 14 Apr
Air Canada Logo
10:45 a.m. - 1:17 p.m.
SEA
-
YTZ
23h 32m
2 stops
Air Canada Logo
8:30 p.m. - 2:20 p.m.
YTZ
-
SEA
20h 50m
2 stops
C$ 510Air Canada
Tue, 5 May - Tue, 12 May
Air Canada Logo
10:45 a.m. - 1:17 p.m.
SEA
-
YTZ
23h 32m
2 stops
Air Canada Logo
6:55 p.m. - 2:20 p.m.
YTZ
-
SEA
22h 25m
2 stops
C$ 535Air Canada
Tue, 5 May - Wed, 6 May
Air Canada Logo
5:50 a.m. - 7:52 a.m.
SEA
-
YTZ
23h 02m
2 stops
Air Canada Logo
8:30 p.m. - 2:20 p.m.
YTZ
-
SEA
20h 50m
2 stops
C$ 541Air Canada
Mon, 4 May - Mon, 11 May
Air Canada Logo
5:50 a.m. - 7:52 a.m.
SEA
-
YTZ
23h 02m
2 stops
Air Canada Logo
6:55 p.m. - 2:20 p.m.
YTZ
-
SEA
22h 25m
2 stops
C$ 554Air Canada
Fri, 8 May - Fri, 15 May
Air Canada Logo
5:40 a.m. - 6:22 p.m.
SEA
-
YTZ
9h 42m
2 stops
Air Canada Logo
3:40 p.m. - 10:53 p.m.
YTZ
-
SEA
10h 13m
2 stops
C$ 568Air Canada
Sun, 12 Apr - Sat, 18 Apr
Air Canada Logo
7:20 p.m. - 10:12 a.m.
SEA
-
YTZ
11h 52m
2 stops
Air Canada Logo
10:20 a.m. - 10:40 p.m.
YTZ
-
SEA
15h 20m
2 stops
C$ 576Air Canada
Thu, 7 May - Wed, 13 May

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets
Air Canada
9 May
SEA7:20 p.m.Seattle/Tacoma Intl
11h 52m
2 stops
YTZ10:12 a.m.Toronto Island
16 May
YTZ6:55 p.m.Toronto Island
18h 10m
2 stops
SEA10:05 a.m.Seattle/Tacoma Intl
C$ 410
Air Canada
9 May
SEA7:20 p.m.Seattle/Tacoma Intl
11h 52m
2 stops
YTZ10:12 a.m.Toronto Island
16 May
YTZ6:55 p.m.Toronto Island
18h 10m
2 stops
SEA10:05 a.m.Seattle/Tacoma Intl
C$ 426
Air Canada
23 Apr
SEA10:20 a.m.Seattle/Tacoma Intl
21h 05m
2 stops
YTZ10:25 a.m.Toronto Island
1 May
YTZ6:55 p.m.Toronto Island
18h 10m
2 stops
SEA10:05 a.m.Seattle/Tacoma Intl
C$ 434

United Airlines flights from Seattle to Toronto Island Airport

Our best United Airlines deals on Seattle to Toronto Island Airport flight tickets
United Airlines
3 Jun
SEA7:40 a.m.Seattle/Tacoma Intl
8h 02m
1 stop
YTZ6:42 p.m.Toronto Island
6 Jun
YTZ12:15 p.m.Toronto Island
12h 44m
2 stops
SEA9:59 p.m.Seattle/Tacoma Intl
C$ 603
United Airlines
3 Jun
SEA10:40 p.m.Seattle/Tacoma Intl
8h 26m
1 stop
YTZ10:06 a.m.Toronto Island
8 Jun
YTZ2:55 p.m.Toronto Island
8h 51m
1 stop
SEA8:46 p.m.Seattle/Tacoma Intl
C$ 604
United Airlines
4 Jun
SEA7:40 a.m.Seattle/Tacoma Intl
8h 02m
1 stop
YTZ6:42 p.m.Toronto Island
8 Jun
YTZ2:55 p.m.Toronto Island
8h 51m
1 stop
SEA8:46 p.m.Seattle/Tacoma Intl
C$ 619

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 25 March 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

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 9/5

7:20 p.m.-10:12 a.m.

2 stops11h 52m

Toronto Island

Sat 16/5

6:55 p.m.-10:05 a.m.

2 stops18h 10m

C$ 426

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 23/4

10:20 a.m.-10:25 a.m.

2 stops21h 05m

Toronto Island

Fri 1/5

6:55 p.m.-10:05 a.m.

2 stops18h 10m

C$ 434

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 21/4

8:00 p.m.-10:25 a.m.

2 stops11h 25m

Toronto Island

Wed 29/4

6:50 a.m.-7:20 p.m.

2 stops15h 30m

C$ 441

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 11/4

8:00 p.m.-6:22 p.m.

2 stops19h 22m

Toronto Island

Tue 14/4

6:55 p.m.-3:05 p.m.

2 stops23h 10m

C$ 483

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 5/5

10:45 a.m.-1:17 p.m.

2 stops23h 32m

Toronto Island

Tue 12/5

8:30 p.m.-2:20 p.m.

2 stops20h 50m

C$ 510

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Tue 5/5

10:45 a.m.-1:17 p.m.

2 stops23h 32m

Toronto Island

Wed 6/5

6:55 p.m.-2:20 p.m.

2 stops22h 25m

C$ 535

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Mon 4/5

5:50 a.m.-7:52 a.m.

2 stops23h 02m

Toronto Island

Mon 11/5

8:30 p.m.-2:20 p.m.

2 stops20h 50m

C$ 541

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 8/5

5:50 a.m.-7:52 a.m.

2 stops23h 02m

Toronto Island

Fri 15/5

6:55 p.m.-2:20 p.m.

2 stops22h 25m

C$ 554
Quickest round-trip

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sun 12/4

5:40 a.m.-6:22 p.m.

2 stops9h 42m

Toronto Island

Sat 18/4

3:40 p.m.-10:53 p.m.

2 stops10h 13m

C$ 568

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Thu 7/5

7:20 p.m.-10:12 a.m.

2 stops11h 52m

Toronto Island

Wed 13/5

10:20 a.m.-10:40 p.m.

2 stops15h 20m

C$ 576

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 and United Airlines are the most popular carriers 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?

    Toronto Island is 3323.2 km away from Seattle/Tacoma Intl. Flights usually cover this in 7h 14m, 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

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