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Cheap Flights from Seattle (SEA) to Toronto (YTO) from HK$1,724~

Cheap Flights from Seattle to Toronto (SEA-YTO)

Prices were available within the past 7 days and start at HK$1,724 for one-way flights and HK$3,828 for return, for the period specified. Prices and availability are subject to change.
Delta
Sat, 19 Dec - Tue, 5 Jan
SEA
Seattle
YYZ
Toronto
HK$3,828
Return
Found 4 days ago
Select Delta flight, departing Sat, 19 Dec from Seattle to Toronto, returning Tue, 5 Jan, priced at HK$3,828 Found 4 days ago
WestJet
Mon, 16 Nov - Tue, 1 Dec
SEA
Seattle
YYZ
Toronto
HK$3,953
Return
Found 5 days ago
Select WestJet flight, departing Mon, 16 Nov from Seattle to Toronto, returning Tue, 1 Dec, priced at HK$3,953 Found 5 days ago
WestJet
Mon, 16 Nov - Thu, 26 Nov
SEA
Seattle
YYZ
Toronto
HK$4,023
Return
Found 5 days ago
Select WestJet flight, departing Mon, 16 Nov from Seattle to Toronto, returning Thu, 26 Nov, priced at HK$4,023 Found 5 days ago
WestJet
Thu, 12 Nov - Tue, 1 Dec
SEA
Seattle
YYZ
Toronto
HK$4,033
Return
Found 5 days ago
Select WestJet flight, departing Thu, 12 Nov from Seattle to Toronto, returning Tue, 1 Dec, priced at HK$4,033 Found 5 days ago
WestJet
Thu, 12 Nov - Thu, 26 Nov
SEA
Seattle
YYZ
Toronto
HK$4,103
Return
Found 5 days ago
Select WestJet flight, departing Thu, 12 Nov from Seattle to Toronto, returning Thu, 26 Nov, priced at HK$4,103 Found 5 days ago
Delta
Sat, 19 Dec - Tue, 5 Jan
SEA
Seattle
YYZ
Toronto
HK$4,117
Return
Found 4 days ago
Select Delta flight, departing Sat, 19 Dec from Seattle to Toronto, returning Tue, 5 Jan, priced at HK$4,117 Found 4 days ago
WestJet
Mon, 16 Nov - Mon, 30 Nov
SEA
Seattle
YYZ
Toronto
HK$4,187
Return
Found 5 days ago
Select WestJet flight, departing Mon, 16 Nov from Seattle to Toronto, returning Mon, 30 Nov, priced at HK$4,187 Found 5 days ago
American Airlines
Sat, 19 Dec - Tue, 5 Jan
SEA
Seattle
YYZ
Toronto
HK$5,054
Return
Found 4 days ago
Select American Airlines flight, departing Sat, 19 Dec from Seattle to Toronto, returning Tue, 5 Jan, priced at HK$5,054 Found 4 days ago
Alaska Airlines
Sat, 19 Dec - Tue, 5 Jan
SEA
Seattle
YYZ
Toronto
HK$5,214
Return
Found 4 days ago
Select Alaska Airlines flight, departing Sat, 19 Dec from Seattle to Toronto, returning Tue, 5 Jan, priced at HK$5,214 Found 4 days ago
Air Canada
Sun, 15 Nov - Sun, 29 Nov
SEA
Seattle
YYZ
Toronto
HK$7,141
Return
Found 5 days ago
Select Air Canada flight, departing Sun, 15 Nov from Seattle to Toronto, returning Sun, 29 Nov, priced at HK$7,141 Found 5 days ago

Find the cheapest month to fly from Seattle (SEA) to Toronto (YTO)

October is typically the cheapest month to fly

From HK$3,096 - HK$6,878 per traveller.

Book with confidence

Flights from Seattle to Toronto

Book cheap flights from Seattle (SEA) to Toronto (YTO) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Toronto (YTO) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Toronto (YTO) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Toronto flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Toronto and things to do in Toronto for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Toronto more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Toronto is HK$1,724 now!

Frequently Asked Questions

How much is a flight from SEA to Toronto (YTO-All Airports)?

Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between SEA and Toronto (YTO-All Airports) start from HK$3,828. Book now to score the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.

Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Toronto (YTO-All Airports)?

Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.

How do I find cheap flights from SEA to Toronto (YTO-All Airports) that have flexible change policies?

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Toronto (YTO-All Airports) flights, you'll see a "no change fees" filter for you to select.

How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Toronto (YTO-All Airports)?

It's around 3,300 kilometers from SeaTac to Ontario, so expect to be flying for a while. Keep yourself entertained by packing things like a magazine or a thrilling novel.

Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Toronto (YTO-All Airports)?

Check out Air Canada (AC) if you want to fly straight from Sea-Tac Airport to Toronto (YTO-All Airports). This airline offers 30 flights monthly, so you're sure to find one that fits your travel plans.

Are SEA to Toronto (YTO-All Airports) flight tickets cheaper when they're purchased at the last minute?

Late planners can sometimes score a bargain, with some of the cheapest fares from Seattle - Tacoma Intl. Airport (SEA) to Toronto (YTO-All Airports) surfacing a few weeks prior to the departure date. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continuously — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

Travel information

Origin airport
Seattle-Tacoma International Airport
Destination airport
Billy Bishop Toronto City Airport
Distance
3,325 km away
Airlines serving
United, Air Canada
Popular airline
United
Return price
HK$3,828
*Available to Expedia members.