Cheap flights from Seattle to Toronto

Round-trip
Economy
Seattle (SEA)
Toronto (YTO)
Depart
Return
Any month
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The best prices from Seattle to Toronto are usually found in January or August, booked 0 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

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 2021: compare Seattle to Toronto flight prices with the expected peak season, weather and rainfall in Toronto.
SEA - YTO
Price
C$ 526 - C$ 798
YTO
Temperature
1 - 25 °C
YTO
Rainfall
29 - 49 mm

Popular in

December

High demand for flights, 19% potential price rise

Cheapest in

January

Best time to find cheap flights, 18% potential price drop

Round-trip from

C$ 526

From Seattle to Toronto

One-way from

C$ 313

One-way flight from Seattle to Toronto

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Toronto?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 88% on the overall cost on flights from Seattle to Toronto.

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

Users have found that booking a flight from Seattle to Toronto at least 60 days early can save you up to 37% on average compared to booking a flight this week. If booking 60 days before your flight isn’t an option for you, users have found flights from Seattle to Toronto for as little as C$ 425 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 498 for flights departing within the next 3 days.

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 at noon. If you’re flexible enough to do this you can expect to save up to 60% on your trip compared to booking a flight in the evening.

Cheap flights from Seattle to Toronto in April, May 2021

The best prices found for SEA to YTO flights for April, May
5 May - 26 May
C$ 461pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
11 May - 18 May
C$ 466pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
11 May - 18 May
C$ 490pp
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Toronto 2021 flight deals

Cheap flights to Toronto from Seattle found for this year
26 Aug - 30 Aug
C$ 459pp
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
5 May - 26 May
C$ 461pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
11 May - 18 May
C$ 466pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Direct flights to Toronto from Seattle

Save time with Seattle to Toronto direct flight deals
9 Aug - 16 Aug
C$ 562pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Direct
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
United Airlines
Direct
SEA
Seattle/Tacoma Intl
22 Jun - 30 Jun
C$ 564pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Direct
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Direct
SEA
Seattle/Tacoma Intl
24 Jun - 8 Jan
C$ 567pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Direct
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
United Airlines
Direct
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
21 Apr - 28 Apr
C$ 656pp
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Apr - 28 Apr
C$ 667pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Apr - 28 Apr
C$ 675pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Toronto from Seattle

The cheapest one-way flights from Seattle to Toronto
7:00 a.m. - 5:48 a.m.
Air Canada
2 stops
19h 48m
SEA - YTZ
Air Canada
C$ 313
1:49 p.m. - 7:45 a.m.
American Airlines
2 stops
14h 56m
SEA - YYZ
American Airlines
C$ 332
6:29 a.m. - 8:07 p.m.
WestJet
1 stop
10h 38m
SEA - YHM
WestJet
C$ 338
WestJet

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

Can I find flights from Seattle to Toronto for under C$ 503 on Cheapflights?

Yes, there are multiple flights from Seattle to Toronto for under C$ 503. The cheapest flight booked recently is on American Airlines for just C$ 459, but on average you can expect to pay C$ 501.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Toronto to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from Seattle/Tacoma Intl to Toronto. Policies will vary by airline.

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

Air Canada, Delta, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Are there direct flights from Seattle to Toronto for under C$ 628 on Cheapflights?

Cheapflights has 5 direct flights from Seattle to Toronto under C$ 628. A good price for a direct flight from Seattle to Toronto is less than C$ 920.

Are there last-minute flights available from Seattle to Toronto for under C$ 754?

There are currently 4+ open flights from Seattle to Toronto within the next 7 days for less than C$ 754.

Is Seattle weather warmer or cooler than Toronto?

Temperatures around the 25 °C's can be experienced in July. The weather in Toronto is the same as in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to Toronto?

Airlines like Delta, American Airlines, and Air Canada fly from Seattle to Toronto in about 8h 05m. The time it takes to get you to your destination can typically vary by up to 1h 19m. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Seattle to Toronto round-trip?

American Airlines, at C$ 459, was found to be the cheapest airline from Seattle to Toronto.Alternate airlines to your destination round-trip include Delta and Air Canada. American Airlines is currently priced 28% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Seattle to Toronto one-way?

One-way options have recently been found by users for as low as C$ 199 on Air Canada. Other airlines that offer cheap prices include American Airlines from C$ 215 and Delta from C$ 222 one-way.

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
C$ 1 = C$ 1.00
Average temperature for April in Toronto
11.0 °C
Avg rainfall for April in Toronto
44.0 mm

Airports servicing Seattle

Airports servicing Toronto

Billy Bishop Toronto City Airport (YTZ)
Hamilton (YHM)
Kitchener (YKF)

Top 4 airlines flying from Seattle to Toronto

The chart below displays the airlines Cheapflights users travelling 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
Delta
C$ 215 C$ 443 No cancel fee N/A
Search Delta flights
American Airlines
C$ 235 C$ 485 No cancel fee 71%
Search American Airlines flights
United Airlines
C$ 252 C$ 493 No cancel fee 69%
Search United Airlines flights
Air Canada
C$ 228 C$ 657 No cancel fee 67%
Search Air Canada flights
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