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.

C$ 200 Cheap Flights from Seattle to Toronto Island Airport in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Toronto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 a.m. - 9:35 p.m.SEA-YTZ

12h 45m2 stops

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

23h 01m2 stops

C$ 409Air Canada

Find Deal

Sat, 6 Dec - Sat, 13 Dec

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

9h 23m2 stops

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

23h 01m2 stops

C$ 456Air Canada

Find Deal

Sat, 6 Dec - Sat, 13 Dec

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

9h 23m2 stops

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

21h 01m2 stops

C$ 465Air Canada

Find Deal

Fri, 5 Dec - Fri, 12 Dec

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

9h 23m2 stops

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

21h 01m2 stops

C$ 479Air Canada

Find Deal

Fri, 5 Dec - Fri, 12 Dec

10:05 a.m. - 9:55 a.m.SEA-YTZ

20h 50m2 stops

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

21h 01m2 stops

C$ 484Air Canada

Find Deal

Sat, 13 Dec - Tue, 16 Dec

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

9h 23m2 stops

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

21h 01m2 stops

C$ 504Air Canada

Find Deal

Fri, 5 Dec - Fri, 12 Dec

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

9h 23m2 stops

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

21h 01m2 stops

C$ 508Air Canada

Find Deal

Fri, 5 Dec - Fri, 12 Dec

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

10h 42m2 stops

12:30 p.m. - 9:31 a.m.YTZ-SEA

24h 01m2 stops

C$ 533Air Canada

Find Deal

Wed, 3 Dec - Wed, 10 Dec

8:00 p.m. - 4:48 p.m.SEA-YTZ

17h 48m2 stops

7:00 a.m. - 2:31 p.m.YTZ-SEA

10h 31m2 stops

C$ 545Multiple Airlines

Find Deal

Sat, 6 Dec - Sat, 13 Dec

8:00 p.m. - 4:43 p.m.SEA-YTZ

17h 43m2 stops

4:30 p.m. - 9:31 a.m.YTZ-SEA

20h 01m2 stops

C$ 557Multiple Airlines

Find Deal

Sat, 15 Nov - Sat, 22 Nov

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets

Air Canada

6 Dec

SEA5:50 a.m.Seattle/Tacoma Intl

12h 45m

2 stops

YTZ9:35 p.m.Toronto Island

13 Dec

YTZ6:30 p.m.Toronto Island

23h 01m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 409

Find similar

Air Canada

6 Dec

SEA5:50 a.m.Seattle/Tacoma Intl

9h 23m

2 stops

YTZ6:13 p.m.Toronto Island

13 Dec

YTZ6:30 p.m.Toronto Island

23h 01m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 456

Find similar

Air Canada

5 Dec

SEA5:50 a.m.Seattle/Tacoma Intl

9h 23m

2 stops

YTZ6:13 p.m.Toronto Island

12 Dec

YTZ8:30 p.m.Toronto Island

21h 01m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 465

Find similar

momondo Fare Finder

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

Sat 6/12

5:50 a.m.-9:35 p.m.

2 stops12h 45m

Toronto Island

Sat 13/12

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

2 stops23h 01m

C$ 409

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 6/12

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

2 stops9h 23m

Toronto Island

Sat 13/12

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

2 stops23h 01m

C$ 456

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 5/12

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

2 stops9h 23m

Toronto Island

Fri 12/12

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

2 stops21h 01m

C$ 465

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 5/12

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

2 stops9h 23m

Toronto Island

Fri 12/12

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

2 stops21h 01m

C$ 479

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 13/12

10:05 a.m.-9:55 a.m.

2 stops20h 50m

Toronto Island

Tue 16/12

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

2 stops21h 01m

C$ 484

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 5/12

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

2 stops9h 23m

Toronto Island

Fri 12/12

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

2 stops21h 01m

C$ 504

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 5/12

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

2 stops9h 23m

Toronto Island

Fri 12/12

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

2 stops21h 01m

C$ 508

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 3/12

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

2 stops10h 42m

Toronto Island

Wed 10/12

12:30 p.m.-9:31 a.m.

2 stops24h 01m

C$ 533

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 6/12

8:00 p.m.-4:48 p.m.

2 stops17h 48m

Toronto Island

Sat 13/12

7:00 a.m.-2:31 p.m.

2 stops10h 31m

C$ 545

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 15/11

8:00 p.m.-4:43 p.m.

2 stops17h 43m

Toronto Island

Sat 22/11

4:30 p.m.-9:31 a.m.

2 stops20h 01m

C$ 557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Direct flights	None

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 8h 02m, 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.

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.

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 22/11

Sat 29/11

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Toronto

Popular Cities in Canada

Flights to Toronto Pearson Intl Airportfrom C$ 106

Flights to Vancouver Intl Airportfrom C$ 69

Flights to Montreal Pierre Elliott Trudeau Intl Airportfrom C$ 238

Flights to Toronto Region of Waterloo Intl Airportfrom C$ 106

Flights to Montreal St Hubert Airport

Cheap flights from Seattle to Toronto from C$ 200

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 18/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Air Canada flights from Seattle to Toronto Island Airport

Our best Air Canada deals on Seattle to Toronto Island Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Toronto Island Airport that are best for you.

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

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

Direct flights

How far is Seattle/Tacoma Intl to Toronto Island by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Toronto Island Airport?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto Island Airport?

What documentation or ID do you need to fly to Toronto Island Airport?

Travelling to a place near Toronto?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Toronto?

Can I find flights from Seattle to Toronto with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Toronto?

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Toronto

Popular Cities in Canada

Popular flights according to clicks in the last 7 days on momondo