$135 Find Cheap Flights from Seattle to Toronto

Flights from Seattle to Toronto

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Flights from Seattle to Toronto Starting at CNY 135

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Seattle to Toronto?

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find cheap airlines flights from Seattle to Toronto

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines

From $123

American Airlines

From $129

Alaska Airlines

From $135

Delta Air Lines

From $136

Spirit Airlines

From $137

WestJet

From $166

Sun Country Airlines

From $172

United Airlines

From $172

Southwest Airlines

From $176

Air Canada

From $193

ANA airlines

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Alternative Cheap Routes from Seattle to Toronto

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Toronto.

Cheapest
SEA
10:44
16h 51m
2 transfer
YYZ
06:35
Seattle-Tacoma International Airport - Toronto Pearson International Airport
Tue, May 14Frontier Airlines
$123
SEA
17:02
22h 48m
2 transfer
YTZ
18:50
Seattle-Tacoma International Airport - Billy Bishop Toronto City Airport
Mon, May 6Frontier Airlines
$159
SEA
20:52
23h 3m
1 transfer
YKF
22:55
Seattle-Tacoma International Airport - Region Of Waterloo International Airport
Wed, May 1Alaska Airlines
$164
SEA
20:52
23h 3m
1 transfer
YKF
22:55
Seattle-Tacoma International Airport - Region Of Waterloo International Airport
Wed, May 1Alaska Airlines
$164
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Frequently Asked Questions

When are flight tickets from Seattle (SEA) to Toronto (YTO) the cheapest?
Airlines adjust prices for flights from Seattle to Toronto based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Seattle (SEA) to Toronto (YTO) cost?
According to Trip.com's data, the lowest price is around $457.
How long does it take to fly from Seattle (SEA) to Toronto (YTO) and what is the distance?
It takes around 4 hours 41 minutes to fly from Seattle (SEA) to Toronto (YTO).
What is the transportation method from the main airport to downtown in Toronto?
- The distance from Toronto Pearson International Airport to downtown is about 20km. It takes about 40 minutes by taxi.
- The distance from Billy Bishop Toronto City Airport to downtown is about 2km. It takes about 20 minutes by taxi.
What are the most popular airlines that fly from Seattle (SEA) to Toronto (YTO)?
Airlines with flights from Seattle (SEA) to Toronto (YTO): Air Canada, United Airlines and Turkish Airlines.

How to find a cheap flight from Seattle to Toronto

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Toronto. Book your flights at the right time and save more.

Book Early

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Compare Flight Prices

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Look Out for Deals

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Check One-way Fares

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Try Different Dates

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Use the Trip.com App

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Travel Info | Seattle to Toronto

Cheapest nonstop flight price	$134
Cheapest round-trip ticket price	$411
Off-season for travel	January
Peak season for travel	July
Flight distance	3,325.49km
Average flight time	4 hours 41 minutes
Popular airline	Alaska Airlines