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Cheap flights from Seattle to Toronto from C$ 163

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTO
23 Dec — 30 Dec1
1 adult

The best prices from Seattle/Tacoma Intl to Toronto are usually found in January or September, booked 68 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from Seattle to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Toronto (YTO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

C$ 381

One-way from

C$ 163

Popular in

April

Cheapest in

January

Average price

C$ 786
10/1-12/1
  • 10/1-12/1
  • 2 total stops
  • 37h 58m total
  • Seattle to Toronto
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15/1
  • 15/1
  • 2 total stops
  • 14h 29m total
  • Seattle to Toronto
Search Deals
High demand for flights, 16% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Toronto

Cheapest flights from Seattle to Toronto
Explore the most affordable flight options available from Seattle to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Tue 31/123:15 p.m.SEA - YYZ
1 stop18h 23mMultiple Airlines
Sun 12/18:00 p.m.YYZ - SEA
1 stop15h 57mMultiple Airlines
Deal found 18/12C$ 436
Tue 31/127:26 a.m.SEA - YYZ
Nonstop4h 41mAlaska Airlines
Fri 10/14:20 p.m.YYZ - SEA
Nonstop5h 23mAlaska Airlines
Deal found 17/12C$ 673
Tue 31/127:15 p.m.SEA - YYZ
1 stop7h 54mAir Canada
Sat 11/17:05 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 17/12C$ 708
Wed 25/125:30 p.m.SEA - YYZ
1 stop9h 45mWestJet
Tue 14/17:55 a.m.YYZ - SEA
1 stop9h 26mWestJet
Deal found 17/12C$ 714
Tue 31/125:00 a.m.SEA - YYZ
1 stop8h 52mUnited Airlines
Sat 11/112:25 p.m.YYZ - SEA
2 stops12h 35mUnited Airlines
Deal found 17/12C$ 728
Tue 31/128:30 a.m.SEA - YYZ
1 stop11h 38mDelta
Fri 10/12:45 p.m.YYZ - SEA
1 stop9h 02mDelta
Deal found 17/12C$ 821
Tue 31/1212:31 a.m.SEA - YYZ
1 stop14h 09mAmerican Airlines
Sun 12/111:46 a.m.YYZ - SEA
1 stop12h 32mAmerican Airlines
Deal found 18/12C$ 827
Sat 28/127:15 p.m.SEA - YTZ
2 stops11h 35mAir Canada
Sat 11/16:25 p.m.YTZ - SEA
2 stops23h 05mAir Canada
Deal found 16/12C$ 970
Sat 21/127:00 p.m.SEA - YTZ
3 stops22h 05mMultiple Airlines
Sat 11/111:55 a.m.YTZ - SEA
2 stops15h 24mMultiple Airlines
Deal found 16/12C$ 973
Tue 31/127:45 p.m.SEA - YHM
2 stops18h 28mWestJet
Tue 7/16:05 p.m.YHM - SEA
2 stops19h 48mWestJet
Deal found 17/12C$ 1,164
Mon 30/129:25 a.m.SEA - YKF
2 stops12h 51mWestJet
Mon 6/16:30 a.m.YKF - SEA
1 stop10h 51mWestJet
Deal found 16/12C$ 1,363
Fri 27/127:45 p.m.SEA - YKF
1 stop8h 10mMultiple Airlines
Mon 30/126:30 a.m.YKF - SEA
1 stop10h 51mMultiple Airlines
Deal found 18/12C$ 1,637

Find flights from Seattle to Toronto within your budget

Customize your flight search to find flights from Seattle to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 10/1

5:45 a.m.-6:46 a.m.

1 stop22h 01m

Toronto Pearson Intl

Sun 12/1

8:00 p.m.-8:57 a.m.

1 stop15h 57m

C$ 381

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 31/1

7:27 a.m.-3:05 p.m.

Nonstop4h 38m

Toronto Pearson Intl

Fri 7/2

4:20 p.m.-6:43 p.m.

Nonstop5h 23m

C$ 384

SeattleToronto

SEA - YKF

SEAYKF

Seattle/Tacoma Intl

Fri 10/1

3:15 p.m.-1:16 a.m.

1 stop7h 01m

Toronto Region of Waterloo Intl

Mon 13/1

9:30 p.m.-2:21 p.m.

1 stop19h 51m

C$ 411

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 1/2

6:05 a.m.-1:50 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Sat 8/2

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

C$ 421

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 11/1

6:05 a.m.-1:50 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Tue 14/1

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

C$ 434

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 11/1

3:20 p.m.-9:11 p.m.

1 stop26h 51m

Toronto Pearson Intl

Tue 14/1

7:55 a.m.-2:21 p.m.

1 stop9h 26m

C$ 444

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 17/1

5:30 a.m.-3:52 p.m.

1 stop7h 22m

Toronto Pearson Intl

Mon 20/1

5:00 p.m.-12:50 a.m.

1 stop10h 50m

C$ 451

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Sat 1/2

5:45 a.m.-6:43 p.m.

2 stops9h 58m

Toronto Island

Sat 8/2

6:25 p.m.-2:30 p.m.

2 stops23h 05m

C$ 457

SeattleToronto

SEA - YTZ

SEAYTZ

Seattle/Tacoma Intl

Fri 31/1

5:45 a.m.-5:58 p.m.

3 stops33h 13m

Toronto Island

Fri 7/2

8:25 p.m.-2:30 p.m.

2 stops21h 05m

C$ 467

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Thu 9/1

12:45 a.m.-4:15 p.m.

1 stop12h 30m

Toronto Pearson Intl

Mon 13/1

5:10 p.m.-11:31 p.m.

1 stop9h 21m

C$ 470

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 27 results
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Best time to book a flight from Seattle to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Toronto

Get recent, data-driven insights about flights from Seattle to Toronto including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Toronto. Price data was last updated on 13 December 2024.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Toronto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Toronto?

Currently, October is the cheapest month in which you can book a flight from Seattle to Toronto (average of C$ 178). Flying from Seattle to Toronto in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to YTO?

Find hourly flight availability from Seattle to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

Unlike in the morning, when flights are generally more expensive, you can save up to 37% on flights from Seattle to Toronto by exploring options for tickets in the evening.

Rainfall in Toronto by month

Plan your trip to Toronto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Toronto when rainfall is around 51.0 mm.

Temperature in Toronto by month

Plan your trip to Toronto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto. Reviews last updated 18 December 2024.
See what other customers who have flown with United Airlines, WestJet and Air Canada from Seattle to Toronto have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Alaska Airlines
8.0
Very good
9,554 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

United Airlines
7.4
Good
9,055 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

WestJet
7.3
Good
2,818 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,554 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.2

Reviews

1 / 10

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Toronto. 2 airlines have flights from Seattle/Tacoma Intl to Toronto on a regular basis. Booking flights from Seattle/Tacoma Intl to Toronto should not be difficult; the airport handles an average of 1 outbound flight to Toronto per day.

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

    According to our current data, Alaska Airlines (C$ 384), Air Canada (C$ 421), and United Airlines (C$ 434) offers the cheapest pricing from Seattle to Toronto. You may be able to fly from Seattle to Toronto for 46% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as C$ 170. Users have also found prices from C$ 186 and C$ 187 on WestJet and Delta, respectively.

  • What are the most popular routes from Seattle to Toronto?

    Most travellers choose Seattle/Tacoma Intl - Toronto Pearson Intl, Seattle/Tacoma Intl - Toronto Island or Seattle/Tacoma Intl - Toronto Region of Waterloo Intl when deciding on the best route from Seattle to Toronto.

  • What are the most reliable airlines from Seattle to Toronto?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Toronto on time: Qatar Airways (100%), Hawaiian Airlines (81%), Alaska Airlines (80%).

  • What are the cheapest flights from Seattle to Toronto?

    On average you can expect to pay C$ 798 for a flight from Seattle to Toronto. The cheapest flight overall is C$ 149 while the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl) is currently priced at C$ 346.

  • Can I find deals for flights from Seattle to Toronto that include hotel bookings?

    Yes. In addition to deals on Seattle to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Toronto.

  • Can I find deals for business class flights from Seattle to Toronto?

    Yes. Cheapflights offers flight deals from Seattle to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Toronto?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Toronto (average of C$ 178). Flying from Seattle to Toronto in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Seattle to Toronto

Discover the top 2 airlines that operate flights from Seattle to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 233AverageC$ 842FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 381AverageC$ 665FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Toronto?

Deals for Seattle to Toronto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Toronto?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Toronto for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Toronto with no change fees?

Need flexible booking options for your flight to Toronto from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Toronto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Toronto from Seattle today and book when prices fit your budget.

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