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

As of September 2026, there are 18 flights per week flying from Seattle to Toronto. The most common day of the week flights depart is Tue, with 22% of flights taking off on this day.

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 13m.

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

As of September 2026, 2 flights take off from Seattle and land in Toronto each day. The most common flight departure time for this route is 8:00AM, with 100% of daily flights taking off at noon.

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

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 26m.

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

Calgary (YYC) was the most common stop: 82% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Salt Lake City (SLC) offer the lowest average round-trip price of $293.

What airlines fly to Toronto?

Alaska Airlines, WestJet and Air Canada 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 56% of people opting to fly with this airline when traveling to Toronto. Keep in mind that there are 5 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

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

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

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?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Toronto is 5 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 you'll need for your trip to Toronto 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$167 Cheap Flights from Seattle to Toronto in 2026

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.

7:35 pm - 7:59 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 24m2 stops Calgary Ottawa

10:20 pm - 2:40 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

19h 20m1 stop Calgary

$361WestJet

Sun, Oct 18 - Mon, Oct 26

10:30 am - 9:35 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 05m2 stops Calgary Winnipeg

8:00 pm - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

25h 45m1 stop Calgary

$363WestJet

Thu, Oct 1 - Mon, Oct 5

10:30 am - 9:15 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 45m1 stop Calgary

3:15 pm - 10:59 amYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

22h 44m2 stops Calgary Las Vegas Harry Reid Intl

$379Multiple Airlines

Wed, Oct 21 - Tue, Oct 27

7:35 pm - 5:45 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

7h 10m1 stop Calgary

4:55 pm - 7:13 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 18mnonstop

$390Multiple Airlines

Mon, Sep 28 - Thu, Oct 1

7:55 am - 3:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

7:20 pm - 9:39 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mnonstop

$445Air Canada

Sat, Oct 17 - Sat, Oct 24

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

$456Air Canada

Fri, Nov 6 - Tue, Nov 17

8:00 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

4:55 pm - 7:26 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mnonstop

$471Alaska Airlines

Thu, Oct 22 - Sat, Oct 24

8:20 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

5:15 pm - 7:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mnonstop

$471Alaska Airlines

Thu, Oct 29 - Tue, Nov 3

8:30 am - 12:01 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 31m2 stops Portland Atlanta Hartsfield-Jackson

12:25 pm - 8:50 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

11h 25m2 stops Atlanta Hartsfield-Jackson Portland

$488Delta

Fri, Jan 8 - Mon, Jan 11

7:20 am - 11:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

13h 16m2 stops Washington, D.C. Reagan-National New York LaGuardia

6:00 am - 7:35 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

16h 35m2 stops New York LaGuardia Washington, D.C. Reagan-National

$514Delta

Thu, Oct 29 - Wed, Nov 4

Cheap last minute flights

Enter your travel dates to find the best prices.

7:35 pm - 6:55 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 20m1 stop Calgary

7:00 am - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

14h 45m2 stops Winnipeg Calgary

$393Multiple Airlines

Tue, Sep 15 - Fri, Sep 18

7:35 pm - 6:55 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

8h 20m1 stop Calgary

12:40 pm - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 05m2 stops Winnipeg Calgary

$394WestJet

Tue, Sep 15 - Sat, Sep 19

10:30 am - 10:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 15m1 stop Calgary

12:00 pm - 6:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 45m1 stop Calgary

$396WestJet

Tue, Sep 15 - Thu, Sep 24

10:30 am - 10:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

9h 15m1 stop Calgary

4:55 pm - 7:13 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 18mnonstop

$421Multiple Airlines

Tue, Sep 15 - Fri, Sep 25

7:52 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 53mnonstop

4:55 pm - 7:13 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 18mnonstop

$712Alaska Airlines

Tue, Sep 15 - Fri, Sep 25

7:52 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 53mnonstop

2:55 pm - 11:23 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

11h 28m1 stop Dallas/Fort Worth

$749Alaska Airlines

Fri, Sep 11 - Fri, Sep 18

5:20 pm - 7:00 amSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

10h 40m1 stop San Francisco

5:16 pm - 11:26 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 10m1 stop San Francisco

$789United Airlines

Tue, Sep 15 - Sun, Sep 20

9:30 am - 11:13 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

10h 43m2 stops Portland Minneapolis St Paul

6:00 am - 1:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

10h 45m2 stops Detroit Metropolitan Wayne County Portland

$859Delta

Sat, Sep 12 - Sat, Sep 19

8:59 am - 11:59 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

12h 00m1 stop Atlanta Hartsfield-Jackson

6:00 am - 12:37 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

9h 37m2 stops Detroit Metropolitan Wayne County Portland

$882Delta

Sat, Sep 12 - Sat, Sep 19

8:00 am - 3:41 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

6:45 pm - 9:04 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mnonstop

$1,071United Airlines

Thu, Sep 10 - Thu, Sep 17

Cheap direct flights

Enter your travel dates to find the best prices.

7:55 am - 3:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

7:20 pm - 9:39 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mnonstop

$445Air Canada

Sat, Oct 17 - Sat, Oct 24

7:55 am - 3:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

$456Air Canada

Wed, Oct 21 - Tue, Oct 27

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

$456Air Canada

Fri, Nov 6 - Sun, Nov 8

8:00 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

4:55 pm - 7:26 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 31mnonstop

$471Alaska Airlines

Thu, Oct 22 - Sat, Oct 24

8:20 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

5:15 pm - 7:45 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 30mnonstop

$471Alaska Airlines

Thu, Oct 29 - Tue, Nov 3

8:21 am - 4:05 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 44mnonstop

5:15 pm - 7:43 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 28mnonstop

$472Alaska Airlines

Fri, Dec 4 - Tue, Dec 15

8:00 am - 3:45 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 45mnonstop

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

$528Multiple Airlines

Thu, Oct 22 - Thu, Oct 29

7:55 am - 3:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

6:45 pm - 9:04 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mnonstop

$871United Airlines

Sat, Oct 10 - Tue, Oct 13

7:55 am - 3:36 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 41mnonstop

6:45 pm - 9:04 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 19mnonstop

$871Multiple Airlines

Sat, Oct 10 - Tue, Oct 13

7:45 am - 3:25 pmSEA Seattle/Tacoma Intl-YYZ Toronto Pearson Intl

4h 40mnonstop

6:25 pm - 8:59 pmYYZ Toronto Pearson Intl-SEA Seattle/Tacoma Intl

5h 34mnonstop

$960United Airlines

Sat, Dec 26 - Sun, Dec 27

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? 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

WestJet flights from Seattle to Toronto

Our best WestJet deals on Seattle to Toronto flight tickets

WestJet

Oct 18

SEA7:35 pmSeattle/Tacoma Intl

9h 24m

2 stops

YYZ7:59 amToronto Pearson Intl

Oct 26

YYZ10:20 pmToronto Pearson Intl

19h 20m

1 stop

SEA2:40 pmSeattle/Tacoma Intl

$361

WestJet

Oct 1

SEA10:30 amSeattle/Tacoma Intl

8h 05m

2 stops

YYZ9:35 pmToronto Pearson Intl

Oct 5

YYZ8:00 pmToronto Pearson Intl

25h 45m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

$363

WestJet

Dec 13

SEA2:30 pmSeattle/Tacoma Intl

12h 15m

2 stops

YYZ5:45 amToronto Pearson Intl

Dec 17

YYZ7:30 amToronto Pearson Intl

9h 10m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

$366

Air Canada flights from Seattle to Toronto

Our best Air Canada deals on Seattle to Toronto flight tickets

Air Canada

Oct 21

SEA5:50 amSeattle/Tacoma Intl

9h 30m

2 stops

YTZ6:20 pmToronto Island

Oct 28

YTZ8:30 pmToronto Island

21h 07m

2 stops

SEA2:37 pmSeattle/Tacoma Intl

$489

Air Canada

Oct 20

SEA5:50 amSeattle/Tacoma Intl

11h 00m

2 stops

YTZ7:50 pmToronto Island

Oct 27

YTZ8:30 pmToronto Island

21h 07m

2 stops

SEA2:37 pmSeattle/Tacoma Intl

$501

Air Canada

Oct 18

SEA7:15 pmSeattle/Tacoma Intl

9h 30m

2 stops

YTZ7:45 amToronto Island

Oct 20

YTZ3:35 pmToronto Island

10h 12m

2 stops

SEA10:47 pmSeattle/Tacoma Intl

$514

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sun 10/18

7:35 pm-7:59 am

2 stops9h 24m

Toronto Pearson Intl

Mon 10/26

10:20 pm-2:40 pm

1 stop19h 20m

$361

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 10/1

10:30 am-9:35 pm

2 stops8h 05m

Toronto Pearson Intl

Mon 10/5

8:00 pm-6:45 pm

1 stop25h 45m

$363

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 10/21

10:30 am-9:15 pm

1 stop7h 45m

Toronto Pearson Intl

Tue 10/27

3:15 pm-10:59 am

2 stops22h 44m

$379

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Mon 9/28

7:35 pm-5:45 am

1 stop7h 10m

Toronto Pearson Intl

Thu 10/1

4:55 pm-7:13 pm

Nonstop5h 18m

$390

Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 10/17

7:55 am-3:36 pm

Nonstop4h 41m

Toronto Pearson Intl

Sat 10/24

7:20 pm-9:39 pm

Nonstop5h 19m

$445

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 11/6

7:45 am-3:25 pm

Nonstop4h 40m

Toronto Pearson Intl

Tue 11/17

6:25 pm-8:59 pm

Nonstop5h 34m

$456

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 10/22

8:00 am-3:45 pm

Nonstop4h 45m

Toronto Pearson Intl

Sat 10/24

4:55 pm-7:26 pm

Nonstop5h 31m

$471

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 10/29

8:20 am-4:05 pm

Nonstop4h 45m

Toronto Pearson Intl

Tue 11/3

5:15 pm-7:45 pm

Nonstop5h 30m

$471

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 1/8

8:30 am-12:01 am

2 stops12h 31m

Toronto Pearson Intl

Mon 1/11

12:25 pm-8:50 pm

2 stops11h 25m

$488

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 10/29

7:20 am-11:36 pm

2 stops13h 16m

Toronto Pearson Intl

Wed 11/4

6:00 am-7:35 pm

2 stops16h 35m

$514

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 $398 to $701.
The lowest price recently found on this route was $361.

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 $255. If you are unable to visit Toronto during the month of January, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around $285.

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

On average, the least expensive day to fly to Toronto from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $530. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Toronto is Sunday, with ticket prices averaging around $778.

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 $399 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 $318 on momondo.

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

There are 4 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?

You could potentially save up to 7% on your flight if you consider stops on a Seattle to Toronto flight.

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	$167
Fastest flight time	4h 36m
Direct flights	Every day
Airports in Toronto	3 airports

The best one-way flight to Toronto from Seattle in the past 72 hours is $167. The best round-trip flight deal from Seattle to Toronto found on momondo in the last 72 hours is $361.

The fastest flight from Seattle to Toronto takes 4h 36m

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).

Search flight deals

Frequently asked questions about flying from Seattle to Toronto

How far is Seattle/Tacoma Intl to Toronto by plane?
Seattle/Tacoma Intl and Toronto are 2065.1 mi apart from one another. By plane, this route typically takes 4h 36m.
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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Toronto is 5 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 you'll need for your trip to Toronto 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Toronto?
Based on momondo bookings for flights between Seattle and Toronto, the leading plane model is Boeing 737-900 Passenger/BBJ3 (winglets), making up 13.75% of the total bookings. Other popular models include Airbus A220-300 with 13.12%, Boeing 777-300ER with 10.00%, and Airbus A321neo with 7.50%.
What is the most popular airline from Seattle to Toronto?
momondo data reveals that the most frequently booked airline on the route from Seattle to Toronto is Alaska Airlines, representing 54% of all bookings. The subsequent popular airlines are Air Canada at 21%, WestJet at 16%, and Delta at 5%.

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
Delta	PriceFrom $132	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
Air Canada	PriceFrom $132	Free Cancellation	Rating 7.1 11,603 reviews	Search Air Canada flights
WestJet	PriceFrom $228	Free Cancellation	Rating 7.2 3,447 reviews	Search WestJet flights
Alaska Airlines	PriceFrom $250	Free Cancellation	Rating 7.9 12,896 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 10,190 reviews	Search United Airlines flights

Alaska Airlines Flights From Seattle to Toronto
Alaska Airlines flight deals from Seattle to Toronto start from $250 round-trip. Over the 4 Alaska Airlines flights for this route in a normal week, average airfare is usually $467 round-trip - but some users have found much cheaper deals with momondo.
United Airlines Flights From Seattle to Toronto
United Airlines is also a popular choice for this route. United Airlines flight deals for Seattle to Toronto start from as low as $277 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $519. United Airlines operates 7 flights to Toronto from Seattle in an average week. Users have rated it 7.4/10 across 10,190 reviews.

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?

momondo does allow users to show only those flights to Toronto from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

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.

An easier way to manage your Toronto 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

Fri 10/9

Fri 10/16

Email me momondo's favorite deals

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

Find better results for your trip to Canada

Nearby airports

Airlines

Cabin classes

Other Canada destinations

Other flights from Seattle

Complete your trip

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 $167

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 10/8. 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

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

WestJet flights from Seattle to Toronto

Our best WestJet deals on Seattle to Toronto flight tickets

Air Canada flights from Seattle to Toronto

Our best Air Canada 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?

What 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

Why use momondo?

An easier way to manage your Toronto 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 Canada

Fly into one of these airports located in Toronto

Airports listed have a maximum distance of 52.0 mi from Toronto

Fly your favorite airline to Toronto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Toronto

List of cabin classes available on flights landing in Toronto. Availability may vary depending on flight origin and airline.

Popular cities in Canada

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

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Toronto

Explore popular destinations other users love

According to popular flight searches on momondo this year