Which layover airport has the shortest travel time from Seattle to Toronto?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 7h 09m.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Toronto?

Delta and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Toronto

Which airport is the most popular layover for flights between Seattle and Toronto?

Calgary (YYC) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Toronto?

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 428.

Which airlines fly to Toronto?

Alaska Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Toronto from Seattle according to our data. Alaska Airlines is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Toronto. Keep in mind that there are 3 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Seattle to Toronto?

Calgary (YYC) has the shortest average layover time for this route: 1h 48m.

How many flights depart from Seattle to Toronto on average per day?

4 flights are operational daily from Seattle to Toronto as of September 2026. The most popular departure time for this route is 8:00a.m., with 100% of flights per day taking off at noon.

How many flights depart from Seattle to Toronto on average per week?

As of September 2026, there are 30 flights per week flying from Seattle to Toronto. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

Prices for flights from Seattle/Tacoma Intl Airport to Toronto are updated daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Toronto?

There are 3 operators available for flights from Seattle/Tacoma Intl Airport to Toronto as of September 2026.

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

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.

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

The travel and health documents required for your trip to Toronto 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 230 Cheap Flights from Seattle to Toronto in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Toronto

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:30 p.m. - 5:00 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 30m1 stop Calgary

7:30 a.m. - 1:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop Calgary

C$ 492WestJet

Thu, 26 Nov - Wed, 9 Dec

7:35 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 10m1 stop Calgary

12:00 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 45m1 stop Calgary

C$ 507WestJet

Wed, 21 Oct - Sat, 24 Oct

7:35 p.m. - 5:45 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 10m1 stop Calgary

9:35 a.m. - 2:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 05m1 stop Calgary

C$ 520WestJet

Wed, 21 Oct - Wed, 28 Oct

7:35 p.m. - 12:55 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

14h 20m1 stop Calgary

1:30 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 15m1 stop Calgary

C$ 548Multiple Airlines

Tue, 20 Oct - Sat, 24 Oct

7:35 p.m. - 12:55 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

14h 20m1 stop Calgary

7:30 a.m. - 2:40 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 10m1 stop Calgary

C$ 553Multiple Airlines

Tue, 20 Oct - Tue, 27 Oct

10:30 a.m. - 12:55 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

23h 25m1 stop Calgary

1:30 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 15m1 stop Calgary

C$ 558Multiple Airlines

Sun, 18 Oct - Sat, 24 Oct

8:29 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Tue, 9 Feb - Sat, 20 Feb

8:00 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Sat, 24 Oct - Tue, 27 Oct

7:45 a.m. - 3:25 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mdirect

8:45 a.m. - 2:37 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

C$ 686Air Canada

Fri, 6 Nov - Mon, 9 Nov

7:05 p.m. - 6:14 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 09m1 stop Vancouver Intl

8:45 a.m. - 2:37 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 52m1 stop Vancouver Intl

C$ 691Air Canada

Sat, 16 Jan - Sat, 23 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:05 p.m. - 11:18 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 13m1 stop Detroit Metropolitan Wayne County

8:15 a.m. - 4:53 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

11h 38m1 stop Vancouver Intl

C$ 721WestJet

Mon, 28 Sep - Wed, 30 Sep

4:27 p.m. - 9:55 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

26h 28m2 stops Denver Intl Nashville Intl

1:30 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 15m1 stop Calgary

C$ 818Multiple Airlines

Tue, 29 Sep - Tue, 20 Oct

11:05 p.m. - 1:34 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 29m1 stop Detroit Metropolitan Wayne County

12:00 p.m. - 7:35 a.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

22h 35m1 stop Vancouver Intl

C$ 834WestJet

Sat, 26 Sep - Mon, 28 Sep

11:05 p.m. - 1:34 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

11h 29m1 stop Detroit Metropolitan Wayne County

9:25 a.m. - 7:35 a.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

25h 10m1 stop Vancouver Intl

C$ 834WestJet

Sat, 26 Sep - Mon, 28 Sep

9:45 p.m. - 8:50 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

20h 05m2 stops Las Vegas Harry Reid Intl Austin Bergstrom

1:30 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 15m1 stop Calgary

C$ 938Multiple Airlines

Sat, 26 Sep - Thu, 15 Oct

8:30 a.m. - 1:05 a.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

13h 35m1 stop Calgary

1:30 p.m. - 6:45 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

8h 15m1 stop Calgary

C$ 944Multiple Airlines

Tue, 29 Sep - Tue, 20 Oct

7:52 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 53mdirect

4:55 p.m. - 7:26 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mdirect

C$ 1,172Alaska Airlines

Tue, 29 Sep - Tue, 20 Oct

7:52 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 53mdirect

4:55 p.m. - 7:26 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mdirect

C$ 1,249Alaska Airlines

Sat, 26 Sep - Thu, 15 Oct

8:00 a.m. - 3:41 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mdirect

4:20 p.m. - 10:47 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 27m1 stop Vancouver Intl

C$ 1,548Air Canada

Mon, 28 Sep - Thu, 1 Oct

8:00 a.m. - 3:41 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mdirect

6:45 p.m. - 9:04 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mdirect

C$ 1,558Air Canada

Mon, 28 Sep - Wed, 30 Sep

Cheap direct flights

Enter your travel dates to find the best prices.

8:29 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Tue, 9 Feb - Sat, 20 Feb

8:00 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Sat, 24 Oct - Tue, 27 Oct

8:29 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 36mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Wed, 10 Feb - Sat, 20 Feb

8:00 a.m. - 3:45 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mdirect

5:15 p.m. - 7:43 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mdirect

C$ 676Alaska Airlines

Sat, 24 Oct - Wed, 28 Oct

8:19 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 714Multiple Airlines

Tue, 3 Nov - Tue, 10 Nov

8:19 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 46mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 730Multiple Airlines

Fri, 6 Nov - Fri, 13 Nov

7:55 a.m. - 3:36 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 778Air Canada

Sat, 24 Oct - Sat, 31 Oct

7:55 a.m. - 3:36 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 788Air Canada

Sat, 24 Oct - Sat, 31 Oct

8:33 a.m. - 4:05 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 32mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 797Multiple Airlines

Fri, 11 Dec - Wed, 16 Dec

7:55 a.m. - 3:36 p.m.SEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mdirect

6:25 p.m. - 8:59 p.m.YYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mdirect

C$ 798Air Canada

Sat, 24 Oct - Sat, 31 Oct

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WestJet flights from Seattle to Toronto

Our best WestJet deals on Seattle to Toronto flight tickets

WestJet

26 Nov

SEA2:30 p.m.Seattle/Tacoma Intl

11h 30m

1 stop

YYZ5:00 a.m.Toronto Pearson Intl

9 Dec

YYZ7:30 a.m.Toronto Pearson Intl

9h 10m

1 stop

SEA1:40 p.m.Seattle/Tacoma Intl

C$ 492

WestJet

21 Oct

SEA7:35 p.m.Seattle/Tacoma Intl

7h 10m

1 stop

YYZ5:45 a.m.Toronto Pearson Intl

24 Oct

YYZ12:00 p.m.Toronto Pearson Intl

9h 45m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 507

WestJet

21 Oct

SEA7:35 p.m.Seattle/Tacoma Intl

7h 10m

1 stop

YYZ5:45 a.m.Toronto Pearson Intl

24 Oct

YYZ12:00 p.m.Toronto Pearson Intl

9h 45m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 520

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 26/11

2:30 p.m.-5:00 a.m.

1 stop11h 30m

Toronto Pearson Intl

Wed 9/12

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 492

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 21/10

7:35 p.m.-5:45 a.m.

1 stop7h 10m

Toronto Pearson Intl

Sat 24/10

12:00 p.m.-6:45 p.m.

1 stop9h 45m

C$ 507

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 21/10

7:35 p.m.-5:45 a.m.

1 stop7h 10m

Toronto Pearson Intl

Wed 28/10

9:35 a.m.-2:40 p.m.

1 stop8h 05m

C$ 520

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-12:55 p.m.

1 stop14h 20m

Toronto Pearson Intl

Sat 24/10

1:30 p.m.-6:45 p.m.

1 stop8h 15m

C$ 548

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-12:55 p.m.

1 stop14h 20m

Toronto Pearson Intl

Tue 27/10

7:30 a.m.-2:40 p.m.

1 stop10h 10m

C$ 553

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sun 18/10

10:30 a.m.-12:55 p.m.

1 stop23h 25m

Toronto Pearson Intl

Sat 24/10

1:30 p.m.-6:45 p.m.

1 stop8h 15m

C$ 558

Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Tue 9/2

8:29 a.m.-4:05 p.m.

Nonstop4h 36m

Toronto Pearson Intl

Sat 20/2

5:15 p.m.-7:43 p.m.

Nonstop5h 28m

C$ 676

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 24/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Tue 27/10

5:15 p.m.-7:43 p.m.

Nonstop5h 28m

C$ 676

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 6/11

7:45 a.m.-3:25 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Mon 9/11

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 686

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 16/1

7:05 p.m.-6:14 a.m.

1 stop8h 09m

Toronto Pearson Intl

Sat 23/1

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 691

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

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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Seattle and Toronto?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 634 to C$ 970.
The lowest price recently found on this route was C$ 492.

What is the cheapest month to fly to Toronto?

The month of January is, on average, the cheapest month to fly to Toronto from Seattle, with most prices found around C$ 358. The month of February is another great option to travel to Toronto, with average flight prices from Seattle averaging around C$ 400.

What is the cheapest day to depart on your flight to Toronto?

According to our data, Thursday is the cheapest day to fly to Toronto from Seattle. The lowest ticket price found for a Thursday departure recently was C$ 758. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Seattle to Toronto on a Monday will generally be more expensive and average around C$ 1,102. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Seattle/Tacoma Intl to Toronto flight route?

Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle/Tacoma Intl - Toronto flight prices

How far in advance should I book a flight from Seattle to Toronto?

You are more likely to see cheaper flights to Toronto from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 572 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Seattle for as low as C$ 447 on momondo.

What cabin class options are available on Seattle to Toronto flights?

There are 3 cabin classes available to choose from on Seattle to Toronto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Toronto flights?

No. A direct flight is the cheapest option for a flight between Seattle to Toronto.

How have Seattle to Toronto flight prices changed over time?

As of September 2026, prices for Seattle to Toronto flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Toronto

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Toronto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Toronto (SEA to YTO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto

Best price found	C$ 230
Fastest flight time	4h 32m
Direct flights	Every day
Airports in Toronto	3 airports

The best one-way flight to Toronto from Seattle in the past 72 hours is C$ 230. The best round-trip flight deal from Seattle to Toronto found on momondo in the last 72 hours is C$ 492.

The fastest flight from Seattle to Toronto takes 4h 32m

Direct flights go from Seattle to Toronto every day.

There are 3 airports in Toronto. From Seattle there are direct flights to Toronto Pearson Intl (YYZ).

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Frequently asked questions about flying from Seattle to Toronto

How far is Seattle/Tacoma Intl to Toronto by plane?
There are 3323.4 km between Seattle/Tacoma Intl and Toronto. In terms of flight time, this usually takes a little over 4h 32m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Toronto?
Prices for flights from Seattle/Tacoma Intl Airport to Toronto are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Toronto?
There are 3 operators available for flights from Seattle/Tacoma Intl Airport to Toronto as of September 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto?
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.
What documentation or ID do you need to fly to Toronto?
The travel and health documents required for your trip to Toronto 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seattle to Toronto?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Toronto is Airbus A220-300 (15.79% of total bookings). The next most popular plane models are Boeing 737-900 Passenger/BBJ3 (winglets) (12.28%), Boeing 777-300ER (8.19%), and Airbus A321neo (7.02%).
What is the most popular airline from Seattle to Toronto?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Toronto is Alaska Airlines (60% of total bookings). The next most popular airline is Air Canada (40%).

Best airlines flying from Seattle to Toronto

Compare and see reviews for airlines that fly from Seattle to Toronto with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom C$ 286	Free Cancellation	Rating 7.9 12,956 reviews	Search Alaska Airlines flights
WestJet	PriceFrom C$ 357	Free Cancellation	Rating 7.2 3,446 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 371	Free Cancellation	Rating 7.1 11,668 reviews	Search Air Canada flights

Alaska Airlines Flights From Seattle to Toronto
Alaska Airlines is one of the most popular airlines flying from Seattle to Toronto, operating 6 flights/week on average for this route. A good Alaska Airlines flight deal for Seattle to Toronto starts from C$ 286 round-trip, up to an average price of C$ 755. Our users have rated Alaska Airlines at 7.9/10.
Air Canada Flights From Seattle to Toronto
Another popular option for Seattle to Toronto flights is Air Canada (7.1/10, 11,668 ratings). Air Canada flies from Seattle to Toronto around 7 times per week, with deals starting from C$ 371 round-trip and rising to an average price of around C$ 758.

Apsley

Why use momondo?

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

It is quick and easy to find Seattle to Toronto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Toronto that suits you.

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

Yes. momondo enables you to select and highlight flights to Toronto from Seattle with this policy.

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

Once you have performed a search for Seattle to Toronto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to Toronto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Feeling lucky

Fly into one of these airports located in Toronto

Toronto Region of Waterloo Intl Airport

Toronto Island Airport

Toronto Pearson Intl Airport

Cheap flights from Seattle to Toronto from C$ 230

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 23/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

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Cheap last-minute flights

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Filter for what you want

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WestJet flights from Seattle to Toronto

Our best WestJet deals on Seattle to Toronto flight tickets

momondo Fare Finder

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

See travel insights to Toronto from

How to get the cheapest flight ticket from Seattle to Toronto

What is the typical price of a round-trip flight between Seattle and Toronto?

What is the cheapest month to fly to Toronto?

What is the cheapest day to depart on your flight to Toronto?

What is the cheapest Seattle/Tacoma Intl to Toronto flight route?

How far in advance should I book a flight from Seattle to Toronto?

What cabin class options are available on Seattle to Toronto flights?

Can stopping save me money on Seattle to Toronto flights?

How have Seattle to Toronto flight prices changed over time?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Toronto?

Which airlines fly to Toronto?

Which airport is the most popular layover for flights between Seattle and Toronto?

Which layover airport offers the lowest fares from Seattle to Toronto?

Which layover airport has the shortest travel time from Seattle to Toronto?

Which layover airport has the shortest connection time from Seattle to Toronto?

How many flights depart from Seattle to Toronto on average per day?

How many flights depart from Seattle to Toronto on average per week?

When to book flights from Seattle to Toronto

Cheap Seattle to Toronto (SEA to YTO) flight deals and tips

Best price found

Fastest flight time

Direct flights

Airports in Toronto

Frequently asked questions about flying from Seattle to Toronto

Best airlines flying from Seattle to Toronto

Compare and see reviews for airlines that fly from Seattle to Toronto with momondo

Travelling to a place near Toronto?

Why use momondo?

An easier way to manage your Toronto trip

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