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Cheap flights from Seattle to Toronto from $166

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$350WestJet
Thu, Oct 15 - Sun, Oct 18
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 6:45 pmYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
$362WestJet
Thu, Oct 15 - Mon, Oct 19
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 6:45 pmYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
$362WestJet
Tue, Sep 29 - Mon, Oct 5
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$374WestJet
Sat, Oct 10 - Sun, Oct 18
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$375WestJet
Thu, Oct 15 - Sun, Oct 18
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$376WestJet
Sat, Oct 10 - Sun, Oct 18
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 6:45 pmYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
$395WestJet
Sat, Sep 26 - Tue, Sep 29
Multiple Airlines Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
Multiple Airlines Logo
6:05 am - 6:45 pmYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
15h 40m1 stop Calgary
$414Multiple Airlines
Thu, Oct 15 - Thu, Oct 22
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$433WestJet
Sat, Oct 3 - Sun, Oct 11
WestJet Logo
7:35 pm - 7:50 pmSEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 pm - 9:40 amYKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
$433WestJet
Fri, Oct 2 - Sun, Oct 11

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WestJet flights from Seattle to Toronto Region of Waterloo Intl Airport

Our best WestJet deals on Seattle to Toronto Region of Waterloo Intl Airport flight tickets
WestJet
Oct 15
SEA7:35 pmSeattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
Oct 18
YKF8:40 pmToronto Region of Waterloo Intl
16h 00m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$350
WestJet
Sep 29
SEA7:35 pmSeattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
Oct 5
YKF8:40 pmToronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$362
WestJet
Sep 25
SEA7:35 pmSeattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
Sep 27
YKF8:40 pmToronto Region of Waterloo Intl
16h 00m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$364

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Toronto Region of Waterloo Intl Airport that are best for you.

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Cheapest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 10/15

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/18

8:40 pm-9:40 am

1 stop16h 00m

$350

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 10/15

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 10/19

8:40 pm-6:45 pm

1 stop25h 05m

$362

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Tue 9/29

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 10/5

8:40 pm-6:45 pm

1 stop25h 05m

$362

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/18

8:40 pm-9:40 am

1 stop16h 00m

$374

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 10/15

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/18

8:40 pm-9:40 am

1 stop16h 00m

$375

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/18

8:40 pm-9:40 am

1 stop16h 00m

$376

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sat 9/26

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Tue 9/29

8:40 pm-6:45 pm

1 stop25h 05m

$395
Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Thu 10/15

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Thu 10/22

6:05 am-6:45 pm

1 stop15h 40m

$414

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Sat 10/3

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/11

8:40 pm-9:40 am

1 stop16h 00m

$433

SeattleToronto

SEA Seattle/Tacoma Intl - YKF Toronto Region of Waterloo Intl

SEAYKF

Seattle/Tacoma Intl

Fri 10/2

7:35 pm-7:50 pm

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 10/11

8:40 pm-9:40 am

1 stop16h 00m

$433

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to Toronto Region of Waterloo Intl 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 Region of Waterloo Intl?

WestJet is the most popular carrier operating from Seattle/Tacoma Intl to Toronto Region of Waterloo Intl

When to book flights from Seattle to Toronto Region of Waterloo Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Toronto Region of Waterloo Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Toronto Region of Waterloo Intl Airport (SEA to YKF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto Region of Waterloo Intl Airport

Best Price Found

$166

Fastest flight time

16h 25m

Direct flights

None
The best one-way flight to Toronto Region of Waterloo Intl Airport from Seattle in the past 72 hours is $166. The best round-trip flight deal from Seattle to Toronto Region of Waterloo Intl Airport found on momondo in the last 72 hours is $350.
The fastest flight from Seattle to Toronto Region of Waterloo Intl Airport takes 16h 25m
There are no direct flights from Seattle to Toronto Region of Waterloo Intl Airport. There are no popular flight routes from Seattle to Toronto Region of Waterloo Intl Airport.
Search flight deals

Frequently asked questions about flying from Seattle to Toronto Region of Waterloo Intl Airport

  • How far is Seattle/Tacoma Intl to Toronto Region of Waterloo Intl by plane?

    Seattle/Tacoma Intl and Toronto Region of Waterloo Intl are 2024.0 mi apart from one another. Typically, this will take 16h 25m by plane in normal conditions.

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

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

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto Region of Waterloo Intl 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 Region of Waterloo Intl Airport.

  • What documentation or ID do you need to fly to Toronto Region of Waterloo Intl Airport?

    The required travel and health documents for your Toronto Region of Waterloo Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Toronto Region of Waterloo Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Port Elgin
Southampton
Sauble Beach

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Toronto from Seattle.

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?

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?

Price alerts on flights to Toronto from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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