Cheap Flight Tickets from Toronto (YYZ) to Seattle (SEA), Starting at $635

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

$635

DL Delta Airlines • 1 stop • 12h

Jun 11 – Jun 22

The cheapest round trip flight from Toronto to Seattle (YYZ-SEA-YYZ) is currently $635

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Cheapest Direct Flight

$940

AS Alaska Airlines • nonstop • 8h 50m

Jun 10

The cheapest nonstop flight from Toronto to Seattle (YYZ-SEA) is currently $940

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Fastest Flight

8h 43m

The fastest nonstop flight from Toronto to Seattle (YYZ-SEA) takes 8h 43m

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

Sun Country Airlines (SY)

Sun Country 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.

Jun 11 - Jun 22, Economy
DL
Toronto → Seattle
12h
5:45 PM - 10:05 PM • 1 stop
DL
Toronto → Seattle
19h
9:45 PM - 12:25 PM • 1 stop
$635
Delta Airlines
Jun 11 - Jun 22, Economy
UA
Toronto → Seattle
22h 5m
10:45 AM - 9:10 PM • 1 stop
AC
Toronto → Seattle
12h 10m
7:20 PM - 5:50 AM • 1 stop
$768
United Airlines
Jun 11 - Jun 22, Economy
AA
Toronto → Seattle
18h 27m
6:46 AM - 2:53 PM • 1 stop
AA
Toronto → Seattle
17h 6m
8:15 AM - 9:41 PM • 1 stop
$790
American Airlines
Jun 11 - Jun 22, Economy
WS
Toronto → Seattle
36h 55m
2:25 PM - 9:40 AM • 2 stops
WS
Toronto → Seattle
13h 40m
7:35 PM - 6:55 AM • 1 stop
$825
WestJet Airlines
Jun 11 - Jun 22, Economy
AC
Toronto → Seattle
12h 10m
10:00 AM - 6:30 PM • 1 stop
AC
Toronto → Seattle
11h 50m
7:20 PM - 8:20 AM • 1 stop
$893
Air Canada
Jun 11 - Jun 22, Economy
AC
Toronto → Seattle
8h 43m
6:45 PM - 9:08 PM • nonstop
AC
Toronto → Seattle
7h 25m
8:00 AM - 3:45 PM • nonstop
$1318
Air Canada

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 6:46 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 825
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 6:45 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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