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

American Airlines, Air Canada and Alaska Airlines are the most popular airlines when flying from Seattle to Toronto.

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 - Hamilton or Seattle/Tacoma Intl - Toronto Kitchener-Waterloo as they are the most popular.

What are the cheapest flights from Seattle to Toronto?

On average you can expect to pay $1,135 for a flight from Seattle to Toronto. The cheapest flight overall is $207 while the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl) is currently priced at $306.

What are the most reliable airlines from Seattle to Toronto?

Consider Turkish Airlines (87%), Air Canada (69%) or United Airlines (69%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Toronto.

Can I find flights from Seattle to Toronto for under $300 on Cheapflights?

Yes, there are multiple flights from Seattle to Toronto for under $300. The cheapest flight booked recently is on Multiple Airlines for just $294, but on average you can expect to pay $326.

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 $649.

Are there last-minute flights available from Seattle to Toronto for under $500?

There are currently 20+ open flights from Seattle to Toronto within the next 7 days for less than $500.

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.

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

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 24% when planning your travel around this day of the week.

What is the cheapest month to fly from Seattle to Toronto?

Flights from Seattle to Toronto lean towards being more expensive in July. Prices are generally better when you fly from Seattle to Toronto in January, with the cheapest ticket starting at $208.

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 33% on your trip compared to booking a flight in the afternoon.

What does SEA to YYZ mean?

Great question - SEA to YYZ just means Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport. Now you’ll know what these unique codes when you look for flights! Toronto Island Airport (YTZ), Hamilton Airport (YHM), Toronto Kitchener-Waterloo Airport (YKF) are other airports near this flight route and their unique identifiers/IATA codes.

Flights from Seattle, WA to Toronto, Canada from $128

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

Popular in	July
Cheapest in	January
Round-trip from	$246
One-way from	$128

High demand for flights, 24% potential price rise

Search Deals

Best time to find cheap flights, 20% potential price drop

Search Deals

From Seattle/Tacoma Intl to Toronto (YTO)

Search Deals

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

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SEA - YTO Price	$246 - $366
YTO Temperature	21.2 - 69.8 °F
YTO Rainfall	2 - 3.3 inches

SEA - YTO

Price

$246 - $366

YTO

Temperature

21.2 - 69.8 °F

YTO

Rainfall

2 - 3.3 inches

Travelers have found it’s best to book a flight 29 days in advance to save up to 55% 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 29 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 $661, or $928 for flights within the next 24 hours.

Cheap flights from Seattle to Toronto in June, July 2023

Scroll through some of the best deals on flights from Seattle to Toronto in 2023. Check back soon for alternative fares.

Jun 20 - Jun 24

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

23h 10m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

2 stops

16h 02m

$396

Multiple Airlines

Deal found 6/1

Jul 31 - Aug 9

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

14h 40m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

7h 59m

$408

Multiple Airlines

Deal found 5/31

Jun 20 - Jun 24

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

23h 10m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 22m

$429

Multiple Airlines

Deal found 6/1

Jul 13 - Jul 16

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 08m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 14m

$437

Multiple Airlines

Deal found 5/31

Jul 12 - Jul 16

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

14h 03m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 14m

$442

Multiple Airlines

Deal found 5/31

Jul 19 - Jul 25

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 48m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

2 stops

12h 34m

$446

WestJet

Deal found 6/1

Jul 28 - Jul 31

SEA

Seattle/Tacoma Intl

YKF

Toronto Kitchener-Waterloo

1 stop

6h 50m

YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

1 stop

20h 19m

$449

Multiple Airlines

Deal found 5/31

Jun 20 - Jun 21

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 54m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

8h 29m

$452

Multiple Airlines

Deal found 5/30

Jun 20 - Jun 24

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 54m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 45m

$453

Multiple Airlines

Deal found 6/1

Seattle to Toronto 2023 flight deals

Scroll through some of the best deals on flights from Seattle to Toronto in 2023. Check back soon for alternative fares.

Oct 10 - Oct 24

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

13h 25m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

8h 59m

$294

Multiple Airlines

Deal found 6/1

Sep 19 - Sep 20

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

13h 25m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 49m

$300

Multiple Airlines

Deal found 6/1

Sep 5 - Sep 13

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

9h 19m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

9h 23m

$304

Multiple Airlines

Deal found 5/31

Sep 19 - Sep 23

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 35m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 49m

$316

Multiple Airlines

Deal found 6/1

Oct 19 - Oct 22

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 35m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

8h 59m

$319

Multiple Airlines

Deal found 5/30

Sep 20 - Sep 24

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

8h 17m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

12h 25m

$320

Multiple Airlines

Deal found 6/1

Sep 20 - Sep 23

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 35m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

8h 59m

$323

Multiple Airlines

Deal found 6/1

Sep 11 - Sep 19

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

13h 25m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

8h 59m

$326

Multiple Airlines

Deal found 6/1

Sep 23 - Sep 29

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 35m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 49m

$328

Multiple Airlines

Deal found 5/31

Cheap WestJet flights from Seattle to Toronto

Check out some of the cheapest WestJet flights we've come across from Seattle to Toronto. It's recommended that users confirm their flight details before booking.

Aug 1 - Aug 9

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 38m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

2 stops

12h 34m

$380

WestJet

Deal found 5/31

Sep 8 - Sep 20

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 37m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

7h 59m

$381

WestJet

Deal found 6/1

Aug 14 - Aug 21

SEA

Seattle/Tacoma Intl

YKF

Toronto Kitchener-Waterloo

1 stop

17h 41m

YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

1 stop

20h 19m

$415

WestJet

Deal found 5/31

Sep 7 - Sep 13

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

16h 47m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

7h 14m

$425

WestJet

Deal found 6/1

Sep 16 - Sep 23

SEA

Seattle/Tacoma Intl

YKF

Toronto Kitchener-Waterloo

1 stop

26h 24m

YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

1 stop

20h 19m

$443

WestJet

Deal found 6/1

Sep 6 - Sep 9

SEA

Seattle/Tacoma Intl

YKF

Toronto Kitchener-Waterloo

1 stop

17h 32m

YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

1 stop

20h 19m

$444

WestJet

Deal found 5/31

Sep 6 - Sep 9

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

16h 47m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

21h 14m

$452

WestJet

Deal found 5/31

Sep 9 - Sep 12

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

26h 27m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

7h 14m

$465

WestJet

Deal found 6/1

Sep 13 - Sep 21

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

26h 27m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

7h 14m

$466

WestJet

Deal found 6/1

One of the most popular airlines traveling from Seattle to Toronto is WestJet. Flights on this route from WestJet typically cost $693.77 RT, a price that is 55% cheaper than the average Seattle to Toronto flight. The cheapest flight found was $447 RT. When traveling from Seattle to Toronto on WestJet, the most popular airport to depart from is Seattle/Tacoma Intl Airport and the most popular airport to arrive at is Toronto Pearson Intl Airport. When flying from Seattle to Toronto, WestJet flights are 3% more popular than any other airline flying that same route.

Cheap Air Canada flights from Seattle to Toronto

Some of the lowest-priced Air Canada flights we've found at this time heading from Seattle to Toronto. Deals are refreshing constantly so come back soon for more options.

Sep 13 - Sep 21

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

7h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$536

Air Canada

Deal found 6/1

Sep 13 - Sep 21

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

7h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$538

Air Canada

Deal found 5/31

Jul 18 - Jul 24

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

7h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$551

Air Canada

Deal found 6/1

Jul 14 - Jul 18

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

7h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$585

Air Canada

Deal found 5/31

Jul 18 - Jul 26

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

8h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

11h 54m

$614

Air Canada

Deal found 5/31

Jul 5 - Aug 8

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

8h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$617

Air Canada

Deal found 6/1

Jul 28 - Aug 1

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

10h 19m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$618

Air Canada

Deal found 5/31

Aug 14 - Aug 16

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

2 stops

12h 24m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

2 stops

13h 25m

$623

Air Canada

Deal found 6/1

Aug 14 - Aug 16

SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

2 stops

15h 49m

YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 54m

$628

Air Canada

Deal found 6/1

Air Canada is one of the most popular airlines used for those traveling from Seattle to Toronto. Flights on this route from Air Canada typically cost $570.86 RT, a price that is 94% cheaper than the average Seattle to Toronto flight. The cheapest flight found was $191 RT. The most popular departure airport in Seattle when flying to Toronto is Seattle/Tacoma Intl Airport. The most popular airport to fly into when visiting Toronto is Toronto Pearson Intl Airport. When flying from Seattle to Toronto, Air Canada flights are -9% more popular than any other airline flying that same route.

Non-stop flights to Toronto from Seattle

For a quicker trip, book one of these direct flights from Seattle to Toronto. Select from other flights from Seattle to Toronto by using the search form above.

Sep 23 - Sep 29

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$536

United Airlines

Deal found 5/30

Sep 13 - Sep 21

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$539

United Airlines

Deal found 5/31

Sep 13 - Sep 21

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$541

Air Canada

Deal found 6/1

Sep 6 - Sep 23

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$547

Air Canada

Deal found 6/1

Sep 6 - Sep 13

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$580

United Airlines

Deal found 5/31

Oct 14 - Oct 26

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$603

United Airlines

Deal found 5/31

Sep 5 - Sep 12

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$612

United Airlines

Deal found 6/1

Sep 7 - Sep 24

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$613

United Airlines

Deal found 6/1

Oct 1 - Oct 5

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 39m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 22m

$635

United Airlines

Deal found 5/31

Last minute flights from Seattle to Toronto

Have a look at some of the flights available from Seattle to Toronto departing last-minute. It's wise to confirm all flight details are correct before booking.

Jun 9 - Jun 13

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

13h 15m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 49m

$461

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 14

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

13h 15m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 34m

$475

Multiple Airlines

Deal found 5/31

Jun 7 - Jun 14

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

10h 49m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

15h 34m

$498

WestJet

Deal found 5/31

Jun 11 - Jun 17

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 51m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 49m

$519

Multiple Airlines

Deal found 5/30

Jun 7 - Jun 14

SEA

Seattle/Tacoma Intl

YKF

Toronto Kitchener-Waterloo

1 stop

10h 50m

YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

1 stop

14h 34m

$519

WestJet

Deal found 5/31

Jun 6 - Jun 26

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 35m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 29m

$538

Multiple Airlines

Deal found 5/30

Jun 9 - Jun 14

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

26h 29m

YHM

Hamilton

SEA

Seattle/Tacoma Intl

1 stop

7h 14m

$541

WestJet

Deal found 5/31

Jun 7 - Jun 26

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 38m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 29m

$554

Multiple Airlines

Deal found 5/30

Jun 7 - Jun 14

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 38m

YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

13h 39m

$556

WestJet

Deal found 5/31

One-way flights to Toronto from Seattle

Users traveling one-way from Seattle to Toronto can select one of these great deals. Those seeking round-trip flights from Seattle to Toronto should utilize the search form at the the top of the page.

Aug 23

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

10h 29m

$128

Multiple Airlines

Deal found 5/31

Jun 26

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

3 stops

22h 58m

$137

Multiple Airlines

Deal found 5/30

Oct 4

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

23h 16m

$156

Multiple Airlines

Deal found 5/31

Sep 13

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

23h 15m

$159

Multiple Airlines

Deal found 5/31

Jul 12

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

9h 46m

$160

Multiple Airlines

Deal found 5/30

Jun 21

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

3 stops

25h 35m

$161

Multiple Airlines

Deal found 5/31

Jul 12

SEA

Seattle/Tacoma Intl

YHM

Hamilton

1 stop

9h 46m

$161

Multiple Airlines

Deal found 6/1

Sep 21

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

23h 05m

$163

Multiple Airlines

Deal found 5/31

Aug 4

SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

7h 38m

$167

WestJet

Deal found 6/1

Find flights from Seattle to Toronto within your budget

Fly from

Fly to

Budget

$294 - $536

Route

Depart

Return

Price

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 10/10

1 stop13h 25m

Toronto Pearson Intl

Tue 10/24

1 stop8h 59m

$294

Pick Dates

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 9/19

1 stop13h 25m

Toronto Pearson Intl

Wed 9/20

1 stop14h 49m

$300

Pick Dates

Seattle/Tacoma IntlHamilton

SEA - YHM

SEAYHM

Seattle/Tacoma Intl

Tue 9/5

1 stop9h 19m

Hamilton

Wed 9/13

1 stop9h 23m

$304

Pick Dates

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 9/19

1 stop7h 35m

Toronto Pearson Intl

Sat 9/23

1 stop14h 49m

$316

Pick Dates

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 10/19

1 stop7h 35m

Toronto Pearson Intl

Sun 10/22

1 stop8h 59m

$319

Pick Dates

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 8/1

1 stop7h 38m

Toronto Pearson Intl

Wed 8/9

2 stops12h 34m

$380

Pick Dates

Seattle/Tacoma IntlToronto Pearson Intl

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 9/8

1 stop7h 37m

Toronto Pearson Intl

Wed 9/20

1 stop7h 59m

$381

Pick Dates

Seattle/Tacoma IntlToronto Kitchener-Waterloo

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Mon 8/14

1 stop17h 41m

Toronto Kitchener-Waterloo

Mon 8/21

1 stop20h 19m

$415

Pick Dates

Seattle/Tacoma IntlToronto Island

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Wed 9/13

1 stop7h 19m

Toronto Island

Thu 9/21

1 stop8h 54m

$536

Pick Dates

Flights are sorted by cheapest first

Deals found on 6/1

Reviews of Airlines Servicing Toronto

Peruse reviews from past customers who have flown with WestJet and Air Canada from Seattle to Toronto to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

My luggage was lost,they cannot find, I have important medical devices packed new clothing etc I had to purchase same am without my medical devices until Boston Scientific can replace.

United Airlines

7.6

Good

1,531 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

My luggage was lost,they cannot find, I have important medical devices packed new clothing etc I had to purchase same am without my medical devices until Boston Scientific can replace.

WestJet

7.1

Good

628 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

My luggage was lost,they cannot find, I have important medical devices packed new clothing etc I had to purchase same am without my medical devices until Boston Scientific can replace.

Air Canada

6.7

Okay

929 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

My luggage was lost,they cannot find, I have important medical devices packed new clothing etc I had to purchase same am without my medical devices until Boston Scientific can replace.

Related info for your journey

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 6 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.

Top 6 airlines flying from Seattle to Toronto

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Air Canada	Cheapest$191	Average$571	FlexibilityNo cancel fee	On-time67%	COVID-19 safety	Search Air Canada flights
WestJet	Cheapest$375	Average$511	FlexibilityNo cancel fee	On-time60%	COVID-19 safety	Search WestJet flights
American Airlines	Cheapest$378	Average$638	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights
United Airlines	Cheapest$447	Average$694	FlexibilityNo cancel fee	On-time69%	COVID-19 safety	Search United Airlines flights
Delta	Cheapest$525	Average$641	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights
Alaska Airlines	Cheapest$552	Average$639	FlexibilityNo cancel fee	On-time75%	COVID-19 safety	Search Alaska Airlines flights

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Hourly flight availability from Seattle to Toronto

1%of flight departures	Early morningMidnight to 6 am
56%of flight departures	Morning6 am to noon
0%of flight departures	AfternoonNoon to 6 pm
43%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

Weekly flight availability from Seattle to Toronto

Sunday	3daily flights
Monday	3daily flights
Tuesday	3daily flights
Wednesday	3daily flights
Thursday	3daily flights
Friday	3daily flights
Saturday	2daily flights

Cheap flights from Seattle (SEA) to Toronto (YTO) from $128

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.

The best prices from Seattle/Tacoma Intl to Toronto are usually found in January or February, booked 28 days in advance, depart on a Friday 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 2023: compare Seattle to Toronto flight prices with the expected peak season, weather and rainfall in Toronto.

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Cheap flights from Seattle to Toronto in June, July 2023

The best prices found for SEA to YTO flights for June, July

Scroll through some of the best deals on flights from Seattle to Toronto in 2023. Check back soon for alternative fares.

Seattle to Toronto 2023 flight deals

Cheap flights to Toronto from Seattle found for this year

Scroll through some of the best deals on flights from Seattle to Toronto in 2023. Check back soon for alternative fares.

Cheap WestJet flights from Seattle to Toronto

Check out some of the cheapest WestJet flights we've come across from Seattle to Toronto. It's recommended that users confirm their flight details before booking.

Cheap Air Canada flights from Seattle to Toronto

Some of the lowest-priced Air Canada flights we've found at this time heading from Seattle to Toronto. Deals are refreshing constantly so come back soon for more options.

Non-stop flights to Toronto from Seattle

Save time with Seattle to Toronto direct flight deals

For a quicker trip, book one of these direct flights from Seattle to Toronto. Select from other flights from Seattle to Toronto by using the search form above.

Last minute flights from Seattle to Toronto

Late deals on return flights to Toronto from Seattle, departing today and this week

Have a look at some of the flights available from Seattle to Toronto departing last-minute. It's wise to confirm all flight details are correct before booking.

One-way flights to Toronto from Seattle

The cheapest one-way flights from Seattle to Toronto

Users traveling one-way from Seattle to Toronto can select one of these great deals. Those seeking round-trip flights from Seattle to Toronto should utilize the search form at the the top of the page.

Find flights from Seattle to Toronto within your budget

Use the slider to find flights from Seattle to Toronto that fit your budget.

Reviews of Airlines Servicing Toronto

Peruse reviews from past customers who have flown with WestJet and Air Canada from Seattle to Toronto to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Useful info, stats and facts about Seattle to Toronto flights.

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

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

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

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What are the most reliable airlines from Seattle to Toronto?

What are the cheapest flights from Seattle to Toronto?

What does SEA to YYZ mean?

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Top 6 airlines flying from Seattle 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.

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Hourly flight availability from Seattle to Toronto

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Weekly flight availability from Seattle to Toronto

See how many times per day planes take to the skies headed from Seattle to Toronto

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