Cheap Flight Tickets from Seattle (SEA) to Toronto (YYZ), Starting at $469

Good to Know: Cheapest and Fastest SEA - YYZ Flights

Useful information for finding best airline tickets from Seattle Tacoma International to Toronto Pearson International on your next trip.

Cheapest Round Trip Flight

$641

WS WestJet Airlines • 1 stop • 15h 35m

Jun 11 – Jun 18

The cheapest round trip flight from Seattle to Toronto (SEA-YYZ-SEA) is currently $641

🔍 Search Flights

Cheapest Direct Flight

$469

AS Alaska Airlines • nonstop • 7h 25m

Jun 15

The cheapest nonstop flight from Seattle to Toronto (SEA-YYZ) is currently $469

🔍 Search Flights

Fastest Flight

7h 25m

The fastest nonstop flight from Seattle to Toronto (SEA-YYZ) takes 7h 25m

Top Airlines Flying from Seattle to Toronto

Delta Airline, DL

Delta Airlines

WestJet Airlines

WestJet Airlines

Air Canada-AC

Air Canada

Alaska Airlines -AS

Alaska Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Seattle (SEA) to Toronto (YYZ)

Compare and book low fare round-trip air tickets from Seattle to Toronto. Ideal for travelers with confirmed return itineraries.

Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
15h 35m
5:35 PM - 6:10 AM • 1 stop
WS
Seattle → Toronto
15h 57m
10:00 AM - 4:57 PM • 1 stop
$641
WestJet Airlines
Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
27h 35m
7:35 PM - 3:30 PM • 1 stop
AS
Seattle → Toronto
8h 50m
4:55 PM - 7:25 PM • nonstop
$1149
WestJet Airlines
Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
13h 48m
1:37 PM - 1:05 AM • 1 stop
AS
Seattle → Toronto
8h 50m
4:55 PM - 7:25 PM • nonstop
$1155
WestJet Airlines
Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
11h 50m
7:35 PM - 5:45 AM • 1 stop
AS
Seattle → Toronto
8h 50m
4:55 PM - 7:25 PM • nonstop
$1205
WestJet Airlines
Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
30h 35m
7:35 PM - 5:10 PM • 1 stop
AS
Seattle → Toronto
8h 50m
4:55 PM - 7:25 PM • nonstop
$1277
WestJet Airlines
Jun 11 - Jun 18, Economy
WS
Seattle → Toronto
37h 15m
7:35 PM - 9:10 PM • 2 stops
AS
Seattle → Toronto
8h 50m
4:55 PM - 7:25 PM • nonstop
$1333
WestJet Airlines

Fly from Seattle to Toronto with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Toronto? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Seattle to Toronto Flights

What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to YYZ?
The most popular airline flying from Seattle to Toronto are
Can I fly from SEA to YYZ non-stop?
Yes, you can fly SEA to YYZ non-stop on
Which airlines fly nonstop between Seattle and Toronto?
The non-stop flights between Seattle and Toronto are .
What’s the earliest departure time from SEA to YYZ Airport?
The earliest flight leaves SEA at 8:00 am and lands in YYZ - Lester B. Pearson International
What are the airports in Toronto?
YYZ
Can I make changes to my Seattle to Toronto flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SEA to YYZ?
Read the fare rules of the Seattle to Toronto air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Seattle and Toronto?
operate flights between Seattle and Toronto
How long does a flight from Seattle to Toronto take?
It takes approximately 5 hour to fly non-stop from SEA to YYZ, which is 2060.36 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Toronto (YYZ) ?
In the past couple of days, the cheapest tickets to YYZ from SEA were found on WS : USD 1205
Do I need a passport to fly between SEA and YYZ?
Yes
What’s the latest departure time from SEA to YYZ ?
The last flight leaves SEA at 7:35 pm

Seattle (SEA) to Toronto (YYZ): Airport Information

Origin Airport Seattle Tacoma International , Seattle, US
Destination Airport Lester B. Pearson International , Toronto, CA
Distance 2060 miles

More Flight Options for Seattle (SEA) and Toronto (YYZ)

Why Fareleaders for SEA to YYZ Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Seattle to Toronto flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on SEA to YYZ flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Seattle to Toronto flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Seattle (SEA) to Toronto (YYZ)
Terms and Conditions*