Cheap flights from Seattle (SEA) to Toronto (YTO)

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The best prices from Seattle/Tacoma Intl to Toronto are usually found in January or October, booked 60 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Seattle (SEA) to Toronto (YTO)

All the information you need to plan the best SEA to YTO flight in 2022: compare Seattle to Toronto flight prices with the expected peak season, weather and rainfall in Toronto.
SEA - YTO
Price
$399 - $685
YTO
Temperature
21.2 - 69.8 °F
YTO
Rainfall
2 - 3.3 inches

Popular in

August

High demand for flights, 21% potential price rise

Cheapest in

January

Best time to find cheap flights, 26% potential price drop

Round-trip from

$399

From Seattle/Tacoma Intl to Toronto (YTO)

One-way from

$257

One-way flight from Seattle/Tacoma Intl to Toronto (YTO)

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Seattle to Toronto (SEA - YTO)?

A simple way to save on the total cost of your ticket is to fly from Seattle to Toronto in the afternoon. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight at noon.

How far in advance should I book a flight from Seattle to Toronto?

Travelers have found it’s best to book a flight 61 days in advance to save up to 40% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Seattle to Toronto 1-2 weeks in advance for as low as $607, or $715 for flights within the next 24 hours.

What is the cheapest day to fly round-trip from Seattle to Toronto?

Departing on a Friday is a good option for securing a great price. You can expect to save up to 13% when planning your travel around this day of the week.

Cheap flights from Seattle to Toronto in June, July 2022

The best prices found for SEA to YTO flights for June, July
18 Jul - 22 Jul
$501pp
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SEA
Seattle/Tacoma Intl
17 Jul - 21 Jul
$509pp
SEA
Seattle/Tacoma Intl
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl
16 Jul - 26 Jul
$514pp
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Toronto 2022 flight deals

Cheap flights to Toronto from Seattle found for this year
17 Oct - 22 Oct
$343pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Oct - 25 Oct
$345pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
29 Oct - 31 Oct
$356pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Non-stop flights to Toronto from Seattle

Save time with Seattle to Toronto direct flight deals
18 Jul - 22 Jul
$501pp
SEA
Seattle/Tacoma Intl
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SEA
Seattle/Tacoma Intl
18 Oct - 21 Oct
$526pp
SEA
Seattle/Tacoma Intl
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SEA
Seattle/Tacoma Intl
21 Oct - 25 Oct
$529pp
SEA
Seattle/Tacoma Intl
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Toronto

Late deals on round-trip flights to Toronto from Seattle, departing today and this week
3 Jul - 20 Jul
$645pp
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl
2 Jul - 23 Jul
$654pp
SEA
Seattle/Tacoma Intl
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl
2 Jul - 22 Jul
$659pp
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Toronto from Seattle

The cheapest one-way flights from Seattle to Toronto
8:10 pm - 7:10 pm
American Airlines
2 Stops
20h 00m
SEA - YYZ
American Airlines
5:30 pm - 8:05 pm
Multiple Airlines
1 Stop
23h 35m
SEA - YHM
Multiple Airlines
$261
Gotogate
2:00 am - 9:28 pm
Air Canada
2 Stops
16h 28m
SEA - YYZ
Air Canada
$272
Air Canada

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Toronto</span> flights.

Flight FAQs

From Seattle to Toronto

What airport do you fly from for flights from Seattle to Toronto?

Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Toronto. You should not have trouble finding flights to Toronto from Seattle/Tacoma Intl; the airport handles an average of 2 outbound flights to Toronto per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Seattle airport to Toronto. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

Which airlines flying from Seattle/Tacoma Intl to Toronto have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Air Canada, United Airlines, and Delta flying from Seattle/Tacoma Intl to Toronto have implemented new flexible cancellation policies.

Can I find flights from Seattle to Toronto for under $400 on Cheapflights?

Yes, there are multiple flights from Seattle to Toronto for under $400. The cheapest flight booked recently is on Multiple Airlines for just $343, but on average you can expect to pay $379.

Are there nonstop flights from Seattle to Toronto for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Toronto under $600. A good price for a nonstop flight from Seattle to Toronto is less than $562.

Are there last-minute flights available from Seattle to Toronto for under $700?

There are currently 20+ open flights from Seattle to Toronto within the next 7 days for less than $700.

What is the cheapest airline to fly from Seattle to Toronto round-trip?

Currently priced at $415, American Airlines will fly you from Seattle to Toronto and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. You may be able to fly from Seattle to Toronto for 22% less than the average price by searching for this airline.

What are the most popular airlines that fly from Seattle to Toronto?

Interjet, Major Airline and American Airlines are the most popular airlines when flying from Seattle to Toronto.

What are the cheapest flights from Seattle to Toronto?

On average you can expect to pay $982 for a flight from Seattle to Toronto. The cheapest flight overall is $227 while the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl) is currently priced at $345.

What are the most popular routes from Seattle to Toronto?

When deciding which route to take from Seattle to Toronto consider Seattle/Tacoma Intl - Toronto Pearson Intl, Seattle/Tacoma Intl - Toronto Island or Seattle/Tacoma Intl - Toronto Hamilton as they are the most popular.

What are the most reliable airlines from Seattle to Toronto?

Consider Turkish Airlines (45%), Air Canada (41%) or United Airlines (41%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Toronto.

COVID Restrictions

View COVID Travel Restrictions for Toronto, Canada

Do I need a COVID test to fly to Toronto from Seattle?

Information is based on travel restrictions from Seattle/Tacoma Intl to Toronto

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Toronto.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Toronto.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Toronto.

Do I need a test to fly back to Seattle from Toronto?

Returning to Seattle/Tacoma Intl from Toronto

COVID-19 testing requirements
Visitors from Toronto are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Toronto are not required to quarantine after entering Seattle/Tacoma Intl.

Hide COVID Travel Restrictions for Toronto, Canada

Alternative routes for Seattle to Toronto

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Toronto

Things to know before you go - useful duration and weather info for your trip from Seattle to Toronto.
Today's exchange rate
$1 = C$ 1.29
Average temperature for June in Toronto
73.4 °F
Avg rainfall for June in Toronto
1.7 ″

Airports servicing Seattle

Airports servicing Toronto

Hamilton (YHM)
Toronto Island (YTZ)
Kitchener-Waterloo (YKF)

Top 7 airlines flying from Seattle/Tacoma Intl to Toronto

The chart below displays the airlines Cheapflights users traveling from Seattle to Toronto choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$14 $22 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

American Airlines
$182 $446 No cancel fee 71%
Air Canada
$197 $489 No cancel fee 67%
Alaska Airlines
$205 $683 No cancel fee 75%
WestJet
$216 $424 No cancel fee 60%
United Airlines
$224 $554 No cancel fee 69%
Delta
$453 $641 No cancel fee N/A

Hourly flight availability from Seattle to Toronto

See what time of day planes typically take off from Seattle towards Toronto.
Morning 6 AM to noon 100% of SEA to YTO departures
Early morning Midnight to 6 AM 0% of SEA to YTO departures
Afternoon Noon to 6 PM 0% of SEA to YTO departures
Evening 6 PM to midnight 0% of SEA to YTO departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Toronto
See how many times per day planes take to the skies headed from Seattle to Toronto.
Sunday
3 daily flights
Monday
3 daily flights
Tuesday
3 daily flights
Wednesday
3 daily flights
Thursday
3 daily flights
Friday
3 daily flights
Saturday
1 daily flight
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