Cheap Flight Tickets from Toronto (YYZ) to Seattle (SEA), Starting at $649

Good to Know: Cheapest and Fastest YYZ - SEA Flights

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

Cheapest Round Trip Flight

$726

WS WestJet Airlines • 1 stop • 15h 10m

Dec 21 – Dec 29

The cheapest round trip flight from Toronto to Seattle (YYZ-SEA-YYZ) is currently $726

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Cheapest Direct Flight

$649

AS Alaska Airlines • nonstop • 9h 18m

Dec 21

The cheapest nonstop flight from Toronto to Seattle (YYZ-SEA) is currently $649

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Fastest Flight

8h 54m

The fastest nonstop flight from Toronto to Seattle (YYZ-SEA) takes 8h 54m

Top Airlines Flying from Toronto to Seattle

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

WestJet Airlines

WestJet Airlines

American Airlines, AA

American Airlines

Air Canada-AC

Air Canada

Alaska Airlines -AS

Alaska Airlines

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

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

Dec 21 - Dec 29, Economy
WS
Toronto → Seattle
15h 10m
7:30 AM - 1:40 PM • 1 stop
WS
Toronto → Seattle
20h 15m
2:30 PM - 5:45 AM • 2 stops
$726
WestJet Airlines
Dec 21 - Dec 29, Economy
AC
Toronto → Seattle
25h 7m
10:25 PM - 9:32 AM • 1 stop
AC
Toronto → Seattle
15h 20m
3:15 PM - 1:24 AM • 1 stop
$815
Air Canada
Dec 21 - Dec 29, Economy
AC
Toronto → Seattle
25h 7m
12:20 PM - 9:57 PM • 2 stops
AC
Toronto → Seattle
15h 20m
7:45 AM - 3:25 PM • nonstop
$869
Air Canada
Dec 21 - Dec 21, Economy
WS
Toronto → Seattle
12h 14m
6:10 AM - 10:44 AM • 1 stop
WS
Toronto → Seattle
28h 45m
2:30 PM - 10:55 AM • 1 stop
$908
WestJet Airlines
Dec 21 - Dec 29, Economy
AC
Toronto → Seattle
25h 7m
8:45 AM - 2:37 PM • 1 stop
AC
Toronto → Seattle
15h 20m
7:45 AM - 3:25 PM • nonstop
$1007
Air Canada
Dec 21 - Dec 21, Economy
DL
Toronto → Seattle
15h 3m
12:15 PM - 6:18 PM • 1 stop
DL
Toronto → Seattle
16h 53m
9:55 PM - 11:08 AM • 1 stop
$1620
Delta Airlines

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

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

FAQs on Toronto to Seattle Flights

What are the airports in Toronto?
YYZ
What’s the most popular airline flying from YYZ to SEA?
The most popular airline flying from Toronto to Seattle are
Can I fly from YYZ to SEA non-stop?
Yes, you can fly YYZ to SEA non-stop on
Which airlines fly nonstop between Toronto and Seattle?
The non-stop flights between Toronto and Seattle are .
What’s the earliest departure time from YYZ to SEA Airport?
The earliest flight leaves YYZ at 6:10 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Toronto to Seattle 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 YYZ to SEA?
Read the fare rules of the Toronto to Seattle 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 Toronto and Seattle?
operate flights between Toronto and Seattle
How long does a flight from Toronto to Seattle take?
It takes approximately 5 hour to fly non-stop from YYZ to SEA, which is 2060.36 miles by air.
Which airlines provide the cheapest flights from Toronto (YYZ) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from YYZ were found on WS : USD 908
Do I need a passport to fly between YYZ and SEA?
Yes
What’s the latest departure time from YYZ to SEA ?
The last flight leaves YYZ at 10:25 pm

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

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

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