Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Toronto from C$ 256

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 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 6:45 p.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
C$ 708WestJet
Tue, 20 Oct - Fri, 23 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 9:40 a.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
C$ 712WestJet
Thu, 15 Oct - Sun, 18 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 6:45 p.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
C$ 713WestJet
Tue, 13 Oct - Fri, 16 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 9:40 a.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
C$ 727WestJet
Thu, 15 Oct - Sun, 18 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 9:40 a.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
C$ 733WestJet
Thu, 15 Oct - Sun, 18 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 6:45 p.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
C$ 760WestJet
Tue, 13 Oct - Wed, 21 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 9:40 a.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
C$ 795WestJet
Thu, 15 Oct - Sun, 18 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 9:40 a.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
16h 00m1 stop Calgary
C$ 810WestJet
Sat, 10 Oct - Wed, 14 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 6:45 p.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
C$ 823WestJet
Sat, 10 Oct - Mon, 19 Oct
WestJet Logo
7:35 p.m. - 7:50 p.m.SEA  Seattle/Tacoma Intl-YKF Toronto Region of Waterloo Intl
21h 15m1 stop Calgary
WestJet Logo
8:40 p.m. - 6:45 p.m.YKF  Toronto Region of Waterloo Intl-SEA Seattle/Tacoma Intl
25h 05m1 stop Calgary
C$ 861WestJet
Sat, 10 Oct - Fri, 16 Oct

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
20 Oct
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
23 Oct
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.m.Seattle/Tacoma Intl
C$ 708
WestJet
15 Oct
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
18 Oct
YKF8:40 p.m.Toronto Region of Waterloo Intl
16h 00m
1 stop
SEA9:40 a.m.Seattle/Tacoma Intl
C$ 712
WestJet
13 Oct
SEA7:35 p.m.Seattle/Tacoma Intl
21h 15m
1 stop
YKF7:50 p.m.Toronto Region of Waterloo Intl
16 Oct
YKF8:40 p.m.Toronto Region of Waterloo Intl
25h 05m
1 stop
SEA6:45 p.m.Seattle/Tacoma Intl
C$ 713

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Tue 20/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Fri 23/10

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 708
Quickest round-trip

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Thu 15/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 18/10

8:40 p.m.-9:40 a.m.

1 stop16h 00m

C$ 712

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Tue 13/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Fri 16/10

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 713

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Thu 15/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 18/10

8:40 p.m.-9:40 a.m.

1 stop16h 00m

C$ 727

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Thu 15/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 18/10

8:40 p.m.-9:40 a.m.

1 stop16h 00m

C$ 733

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Tue 13/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Wed 21/10

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 760

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Thu 15/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Sun 18/10

8:40 p.m.-9:40 a.m.

1 stop16h 00m

C$ 795

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Wed 14/10

8:40 p.m.-9:40 a.m.

1 stop16h 00m

C$ 810

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Mon 19/10

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 823

SeattleToronto

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

SEAYKF

Seattle/Tacoma Intl

Sat 10/10

7:35 p.m.-7:50 p.m.

1 stop21h 15m

Toronto Region of Waterloo Intl

Fri 16/10

8:40 p.m.-6:45 p.m.

1 stop25h 05m

C$ 861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Toronto from

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

C$ 256

Fastest flight time

8h 48m

Direct flights

None
The best one-way flight to Toronto Region of Waterloo Intl Airport from Seattle in the past 72 hours is C$ 256. The best round-trip flight deal from Seattle to Toronto Region of Waterloo Intl Airport found on momondo in the last 72 hours is C$ 708.
The fastest flight from Seattle to Toronto Region of Waterloo Intl Airport takes 8h 48m
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?

    The distance between Seattle/Tacoma Intl and Toronto Region of Waterloo Intl is about 3257.4 km. A reasonable flight in good conditions will take 8h 48m.

  • 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 refresh daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 travel and health documents required for your trip to Toronto Region of Waterloo Intl 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 Region of Waterloo Intl 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
Sauble Beach
Port Elgin
Southampton
Apsley

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Toronto for you.

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

All flight searches from Seattle to Toronto on momondo can be filtered to show those which offer flexible booking policies.

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 Region of Waterloo Intl 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
Thu 22/10
Thu 29/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Toronto