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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YTO
22 Jan — 29 Jan1
Round-trip
1 adult
Economy
The best prices from Seattle/Tacoma Intl to Toronto are usually found in January or September, booked 70 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 17 January 2025.
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 17 January 2025.
Tue 11/311:48 a.m.SEA - YYZ
1 stop15h 55mMultiple Airlines
Thu 13/38:00 p.m.YYZ - SEA
1 stop18h 46mMultiple Airlines
Deal found 15/1C$ 356
Tue 18/27:18 a.m.SEA - YYZ
Nonstop4h 37mAlaska Airlines
Sat 22/24:20 p.m.YYZ - SEA
Nonstop5h 24mAlaska Airlines
Deal found 16/1C$ 382
Wed 12/33:15 p.m.SEA - YYZ
2 stops11h 43mWestJet
Wed 19/37:55 a.m.YYZ - SEA
1 stop9h 26mWestJet
Deal found 16/1C$ 391
Mon 3/29:40 a.m.SEA - YTZ
2 stops31h 25mMultiple Airlines
Mon 10/24:10 p.m.YTZ - SEA
3 stops27h 50mMultiple Airlines
Deal found 15/1C$ 411
Mon 17/33:15 p.m.SEA - YKF
1 stop12h 25mMultiple Airlines
Mon 24/39:30 p.m.YKF - SEA
2 stops15h 30mMultiple Airlines
Deal found 14/1C$ 425
Thu 20/25:02 a.m.SEA - YYZ
1 stop8h 25mUnited Airlines
Thu 20/27:05 p.m.YYZ - SEA
Nonstop5h 25mUnited Airlines
Deal found 15/1C$ 435
Thu 6/26:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Wed 12/27:05 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 15/1C$ 441
Tue 6/57:20 a.m.SEA - YTZ
1 stop9h 30mAir Canada
Sat 10/512:25 p.m.YTZ - SEA
1 stop10h 12mAir Canada
Deal found 15/1C$ 470
Thu 13/312:49 a.m.SEA - YYZ
1 stop9h 44mDelta
Tue 25/36:15 a.m.YYZ - SEA
1 stop9h 15mDelta
Deal found 15/1C$ 481
Sat 22/33:15 p.m.SEA - YHM
1 stop23h 46mWestJet
Thu 27/36:05 p.m.YHM - SEA
2 stops18h 55mWestJet
Deal found 16/1C$ 494
Tue 18/29:45 p.m.SEA - YKF
2 stops24h 31mWestJet
Tue 25/26:30 a.m.YKF - SEA
1 stop10h 51mWestJet
Deal found 15/1C$ 579
Sun 2/37:05 p.m.SEA - YHM
2 stops19h 08mMultiple Airlines
Sun 9/36:55 p.m.YHM - SEA
2 stops18h 05mMultiple Airlines
Deal found 16/1C$ 589
Best flights from Seattle to Toronto
Discover carefully curated flight deals from Seattle to Toronto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.
Tue 11/311:48 a.m.SEA - YYZ
1 stop15h 55mMultiple Airlines
Thu 13/38:00 p.m.YYZ - SEA
1 stop18h 46mMultiple Airlines
Deal found 15/1C$ 356
Tue 18/27:18 a.m.SEA - YYZ
Nonstop4h 37mAlaska Airlines
Fri 21/24:20 p.m.YYZ - SEA
Nonstop5h 24mAlaska Airlines
Deal found 16/1C$ 382
Wed 12/33:15 p.m.SEA - YYZ
2 stops11h 43mWestJet
Wed 19/37:55 a.m.YYZ - SEA
1 stop9h 26mWestJet
Deal found 16/1C$ 391
Thu 20/25:02 a.m.SEA - YYZ
1 stop8h 25mUnited Airlines
Thu 20/27:05 p.m.YYZ - SEA
Nonstop5h 25mUnited Airlines
Deal found 15/1C$ 435
Thu 6/26:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Wed 12/27:05 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 15/1C$ 441
Thu 13/312:49 a.m.SEA - YYZ
1 stop9h 44mDelta
Fri 21/35:00 p.m.YYZ - SEA
1 stop10h 09mDelta
Deal found 15/1C$ 481
Wed 19/212:43 a.m.SEA - YYZ
1 stop9h 17mAmerican Airlines
Sun 23/24:44 p.m.YYZ - SEA
1 stop9h 22mAmerican Airlines
Deal found 15/1C$ 552
Mon 3/29:40 a.m.SEA - YTZ
2 stops31h 25mMultiple Airlines
Mon 10/24:10 p.m.YTZ - SEA
3 stops27h 50mMultiple Airlines
Deal found 15/1C$ 411
Mon 17/33:15 p.m.SEA - YKF
1 stop12h 25mMultiple Airlines
Mon 24/39:30 p.m.YKF - SEA
2 stops15h 30mMultiple Airlines
Deal found 14/1C$ 425
Tue 6/57:20 a.m.SEA - YTZ
1 stop9h 30mAir Canada
Sat 10/512:25 p.m.YTZ - SEA
1 stop10h 12mAir Canada
Deal found 15/1C$ 470
Sat 22/33:15 p.m.SEA - YHM
1 stop23h 46mWestJet
Thu 27/36:05 p.m.YHM - SEA
2 stops18h 55mWestJet
Deal found 16/1C$ 494
Tue 18/29:45 p.m.SEA - YKF
2 stops24h 31mWestJet
Tue 25/26:30 a.m.YKF - SEA
1 stop10h 51mWestJet
Deal found 15/1C$ 579
Direct flights from Seattle to Toronto
Explore direct flight options from Seattle to Toronto based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 January 2025.
Tue 18/27:18 a.m.SEA - YYZ
Nonstop4h 37mAlaska Airlines
Fri 21/24:20 p.m.YYZ - SEA
Nonstop5h 24mAlaska Airlines
Deal found 16/1C$ 382
Sat 1/37:18 a.m.SEA - YYZ
Nonstop4h 37mMultiple Airlines
Sat 8/37:05 p.m.YYZ - SEA
Nonstop5h 25mMultiple Airlines
Deal found 15/1C$ 414
Thu 6/26:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Wed 12/27:05 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 15/1C$ 441
Sat 15/26:05 a.m.SEA - YYZ
Nonstop4h 45mUnited Airlines
Sun 23/27:05 p.m.YYZ - SEA
Nonstop5h 25mUnited Airlines
Deal found 16/1C$ 464
Last-minute flights from Seattle to Toronto
Discover last-minute flight deals from Seattle to Toronto. Data last updated 17 January 2025 and is based on user searches.
Wed 22/19:45 a.m.SEA - YYZ
1 stop18h 01mMultiple Airlines
Tue 28/19:30 a.m.YYZ - SEA
3 stops17h 49mMultiple Airlines
Deal found 15/1C$ 460
Wed 22/16:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Tue 28/17:05 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 15/1C$ 624
Wed 22/17:27 a.m.SEA - YYZ
Nonstop4h 38mAlaska Airlines
Sun 26/14:20 p.m.YYZ - SEA
Nonstop5h 23mAlaska Airlines
Deal found 15/1C$ 779
Thu 23/15:55 p.m.SEA - YKF
2 stops28h 21mMultiple Airlines
Sun 26/19:05 p.m.YKF - SEA
2 stops15h 55mMultiple Airlines
Deal found 15/1C$ 612
Thu 23/112:45 a.m.SEA - YYZ
1 stop12h 30mAmerican Airlines
Mon 27/15:10 p.m.YYZ - SEA
1 stop9h 21mAmerican Airlines
Deal found 15/1C$ 831
Thu 23/19:45 p.m.SEA - YTZ
2 stops16h 03mMultiple Airlines
Sun 26/13:35 p.m.YTZ - SEA
3 stops21h 25mMultiple Airlines
Deal found 15/1C$ 1,068
Fri 24/111:30 a.m.SEA - YYZ
1 stop16h 25mWestJet
Sun 26/110:35 p.m.YYZ - SEA
2 stops14h 25mWestJet
Deal found 15/1C$ 552
Sat 25/13:20 p.m.SEA - YHM
1 stop23h 41mWestJet
Sun 2/26:45 p.m.YHM - SEA
1 stop22h 36mWestJet
Deal found 15/1C$ 727
Sat 25/19:40 a.m.SEA - YYZ
2 stops11h 15mDelta
Sun 2/25:00 p.m.YYZ - SEA
1 stop10h 50mDelta
Deal found 15/1C$ 872
Mon 3/29:40 a.m.SEA - YTZ
2 stops31h 25mMultiple Airlines
Mon 10/24:10 p.m.YTZ - SEA
3 stops27h 50mMultiple Airlines
Deal found 15/1C$ 411
Tue 4/29:45 a.m.SEA - YYZ
1 stop17h 58mMultiple Airlines
Tue 11/210:00 a.m.YYZ - SEA
2 stops17h 19mMultiple Airlines
Deal found 14/1C$ 361
Thu 6/211:30 a.m.SEA - YYZ
2 stops9h 56mWestJet
Wed 12/27:40 a.m.YYZ - SEA
1 stop9h 41mWestJet
Deal found 15/1C$ 387
One-way flights from Seattle to Toronto
Search for one-way flight options from Seattle to Toronto. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.
Mon 3/25:16 p.m.SEA - YYZ
2 stops28h 24mMultiple Airlines
Deal found 15/1C$ 161
Fri 7/211:30 a.m.SEA - YYZ
2 stops9h 56mWestJet
Deal found 15/1C$ 162
Fri 21/311:30 a.m.SEA - YKF
2 stops10h 46mWestJet
Deal found 15/1C$ 164
Fri 7/27:17 a.m.SEA - YYZ
Nonstop4h 38mAlaska Airlines
Deal found 15/1C$ 171
Sat 22/33:15 p.m.SEA - YHM
1 stop23h 46mWestJet
Deal found 14/1C$ 177
Thu 6/27:10 a.m.SEA - YTZ
2 stops32h 43mMultiple Airlines
Deal found 15/1C$ 177
Thu 24/46:05 a.m.SEA - YYZ
Nonstop4h 50mAir Canada
Deal found 15/1C$ 190
Sat 1/311:05 p.m.SEA - YYZ
1 stop7h 12mDelta
Deal found 15/1C$ 197
Fri 7/23:25 p.m.SEA - YYZ
1 stop13h 05mUnited Airlines
Deal found 15/1C$ 207
Sat 1/24:30 p.m.SEA - YYZ
1 stop17h 30mAmerican Airlines
Deal found 15/1C$ 221
Sun 2/33:05 p.m.SEA - YTZ
2 stops15h 33mAir Canada
Deal found 16/1C$ 237
Fri 7/211:30 a.m.SEA - YKF
2 stops16h 10mMultiple Airlines
Deal found 15/1C$ 246
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 17 January 2025.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Tue 11/3
11:48 a.m.-6:43 a.m.
1 stop15h 55m
Toronto Pearson Intl
Thu 13/3
8:00 p.m.-11:46 a.m.
1 stop18h 46m
C$ 356
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Tue 18/2
7:18 a.m.-2:55 p.m.
Nonstop4h 37m
Toronto Pearson Intl
Fri 21/2
4:20 p.m.-6:44 p.m.
Nonstop5h 24m
C$ 382
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Wed 12/3
3:15 p.m.-5:58 a.m.
2 stops11h 43m
Toronto Pearson Intl
Wed 19/3
7:55 a.m.-2:21 p.m.
1 stop9h 26m
C$ 391
SeattleToronto
SEA - YTZ
SEAYTZ
Seattle/Tacoma Intl
Mon 3/2
9:40 a.m.-8:05 p.m.
2 stops31h 25m
Toronto Island
Mon 10/2
4:10 p.m.-5:00 p.m.
3 stops27h 50m
C$ 411
SeattleToronto
SEA - YKF
SEAYKF
Seattle/Tacoma Intl
Mon 17/3
3:15 p.m.-6:40 a.m.
1 stop12h 25m
Toronto Region of Waterloo Intl
Mon 24/3
9:30 p.m.-10:00 a.m.
2 stops15h 30m
C$ 425
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Thu 20/2
11:59 p.m.-4:46 p.m.
1 stop13h 47m
Toronto Pearson Intl
Fri 21/2
7:05 p.m.-9:30 p.m.
Nonstop5h 25m
C$ 435
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Thu 6/2
6:05 a.m.-1:50 p.m.
Nonstop4h 45m
Toronto Pearson Intl
Wed 12/2
7:05 p.m.-9:30 p.m.
Nonstop5h 25m
C$ 441
SeattleToronto
SEA - YTZ
SEAYTZ
Seattle/Tacoma Intl
Tue 6/5
7:20 a.m.-7:50 p.m.
1 stop9h 30m
Toronto Island
Sat 10/5
12:25 p.m.-7:37 p.m.
1 stop10h 12m
C$ 470
SeattleToronto
SEA - YYZ
SEAYYZ
Seattle/Tacoma Intl
Thu 13/3
12:49 a.m.-1:33 p.m.
1 stop9h 44m
Toronto Pearson Intl
Fri 21/3
5:00 p.m.-12:09 a.m.
1 stop10h 09m
C$ 481
SeattleHamilton
SEA - YHM
SEAYHM
Seattle/Tacoma Intl
Sat 22/3
3:15 p.m.-6:01 p.m.
1 stop23h 46m
Hamilton
Thu 27/3
6:05 p.m.-10:00 a.m.
2 stops18h 55m
C$ 494
Flights are sorted by cheapest round-trip flights first.
Deals found on 15/1
Showing 1-10 of 25 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 10 January 2025.
Booking 70 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, January is the cheapest month in which you can book a flight from Seattle to Toronto (average of C$ 168). 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 17 January 2025.
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.
Weekly flight availability from Seattle to Toronto
Explore weekly flight availability from Seattle to Toronto. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 January 2025.
The most flights from SEA to YTO are scheduled on a Wednesday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
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 17 January 2025.
See what other customers who have flown with Delta, Air Canada and Alaska Airlines from Seattle to Toronto have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
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 4 outbound flights to Toronto per day.
What are the cheapest airlines flying from Seattle to Toronto round-trip?
According to our current data, Alaska Airlines (C$ 382), WestJet (C$ 391), and United Airlines (C$ 435) offers the cheapest pricing from Seattle to Toronto. You may be able to fly from Seattle to Toronto for 45% 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 WestJet. According to our data, you can fly for as low as C$ 162. Users have also found prices from C$ 171 and C$ 190 on Alaska Airlines and Air Canada, respectively.
What are the most popular routes from Seattle to Toronto?
Most travellers choose Seattle/Tacoma Intl - Toronto Pearson Intl, Seattle/Tacoma Intl - Toronto Region of Waterloo Intl or Seattle/Tacoma Intl - Toronto Island 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: Air Canada (92%), United Airlines (92%), Qatar Airways (88%).
What are the cheapest flights from Seattle to Toronto?
On average you can expect to pay C$ 862 for a flight from Seattle to Toronto. The cheapest flight overall is C$ 162 while the most popular route, (Seattle/Tacoma Intl - Toronto Pearson Intl) is currently priced at C$ 362.
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, January is the cheapest month in which you can book a flight from Seattle to Toronto (average of C$ 168). 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.
Explore flights to Toronto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 January 2025.
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 17 January 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
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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