Cheap flights from Toronto Pearson Intl Airport to Seattle from C$ 306
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
15 Oct — 22 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto Pearson Intl to Seattle/Tacoma Intl are usually found in February or January, booked 86 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Pearson Intl to Seattle
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Cheapest flights from Pearson Intl to Seattle
Explore the most affordable flight options available from Pearson Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2026.
Fri 16/1010:55 p.m. -
2 stops13h 45m
Thu 22/107:35 p.m. -
1 stop7h 10m
Deal found 12/9C$ 424
Sat 10/1010:55 p.m. -
2 stops13h 45m
Tue 13/107:35 p.m. -
2 stops20h 00m
Deal found 15/9C$ 470
Tue 6/1011:10 p.m. -
2 stops13h 30m
Sat 17/1010:30 a.m. -
1 stop9h 15m
Deal found 15/9C$ 473
Sat 3/1010:20 p.m. -
2 stops14h 20m
Sat 17/107:35 p.m. -
2 stops12h 25m
Deal found 15/9C$ 474
Thu 1/101:30 p.m. -
1 stop8h 15m
Sun 1/112:30 p.m. -
1 stop17h 25m
Deal found 14/9C$ 476
Fri 23/1010:55 p.m. -
2 stops13h 45m
Sat 24/107:35 p.m. -
1 stop8h 20m
Deal found 11/9C$ 477
Wed 14/103:30 p.m. -
2 stops21h 10m
Wed 28/103:30 p.m. -
2 stops12h 15m
Deal found 14/9C$ 479
Wed 30/96:10 a.m. -
2 stops15h 35m
Thu 1/1010:30 a.m. -
1 stop7h 45m
Deal found 14/9C$ 480
Wed 21/101:30 p.m. -
1 stop8h 15m
Fri 30/103:30 p.m. -
2 stops12h 15m
Deal found 11/9C$ 481
Wed 7/101:30 p.m. -
1 stop8h 15m
Fri 11/122:30 p.m. -
2 stops12h 15m
Deal found 10/9C$ 483
Fri 23/101:30 p.m. -
1 stop8h 15m
Wed 28/103:30 p.m. -
2 stops12h 15m
Deal found 11/9C$ 484
Best flights from Pearson Intl to Seattle
Discover carefully curated flight deals from Pearson Intl to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2026.
Wed 4/115:15 p.m. -
Nonstop5h 30m
Wed 11/118:19 a.m. -
Nonstop4h 46m
Deal found 15/9C$ 604
Fri 30/106:10 a.m. -
1 stop10h 15m
Mon 16/1110:56 p.m. -
1 stop14h 51m
Deal found 13/9C$ 622
Fri 9/1010:15 a.m. -
1 stop11h 37m
Tue 13/107:55 a.m. -
Nonstop4h 41m
Deal found 13/9C$ 630
Fri 25/96:34 p.m. -
1 stop8h 24m
Sat 3/106:00 a.m. -
1 stop6h 15m
Deal found 11/9C$ 630
Wed 30/94:55 p.m. -
Nonstop5h 18m
Wed 18/118:19 a.m. -
Nonstop4h 46m
Deal found 13/9C$ 607
Fri 2/1010:15 a.m. -
2 stops13h 22m
Sun 4/1011:13 p.m. -
1 stop7h 41m
Deal found 14/9C$ 630
Fri 16/1012:45 p.m. -
2 stops12h 14m
Sat 7/118:30 a.m. -
2 stops9h 45m
Deal found 12/9C$ 630
Fri 12/25:15 p.m. -
Nonstop5h 28m
Sun 21/28:21 a.m. -
Nonstop4h 44m
Deal found 12/9C$ 669
Sat 13/35:15 p.m. -
Nonstop5h 28m
Thu 18/38:21 a.m. -
Nonstop4h 44m
Deal found 12/9C$ 669
Sun 14/23:00 p.m. -
2 stops10h 59m
Sat 20/26:50 a.m. -
1 stop8h 09m
Deal found 12/9C$ 690
Fri 23/104:55 p.m. -
Nonstop5h 31m
Sun 1/118:19 a.m. -
Nonstop4h 46m
Deal found 12/9C$ 703
Fri 23/104:55 p.m. -
Nonstop5h 31m
Sat 31/108:20 a.m. -
Nonstop4h 45m
Deal found 10/9C$ 704
Direct flights from Pearson Intl to Seattle
Explore direct flight options from Pearson Intl to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2026.
Thu 8/104:55 p.m. -
Nonstop5h 31m
Thu 22/108:00 a.m. -
Nonstop4h 45m
Deal found 14/9C$ 519
Mon 2/116:25 p.m. -
Nonstop5h 34m
Tue 10/117:45 a.m. -
Nonstop4h 40m
Deal found 14/9C$ 584
Thu 15/106:45 p.m. -
Nonstop5h 19m
Wed 21/107:55 a.m. -
Nonstop4h 41m
Deal found 15/9C$ 597
Fri 2/106:45 p.m. -
Nonstop5h 19m
Sun 11/107:55 a.m. -
Nonstop4h 41m
Deal found 12/9C$ 600
Mon 2/115:15 p.m. -
Nonstop5h 30m
Wed 25/118:31 a.m. -
Nonstop4h 34m
Deal found 12/9C$ 602
Wed 30/94:55 p.m. -
Nonstop5h 18m
Thu 15/108:00 a.m. -
Nonstop4h 45m
Deal found 15/9C$ 604
Fri 16/106:45 p.m. -
Nonstop5h 19m
Mon 19/107:55 a.m. -
Nonstop4h 41m
Deal found 14/9C$ 605
Thu 15/104:55 p.m. -
Nonstop5h 31m
Mon 26/108:20 a.m. -
Nonstop4h 45m
Deal found 14/9C$ 607
Wed 7/106:45 p.m. -
Nonstop5h 19m
Sat 12/127:45 a.m. -
Nonstop4h 40m
Deal found 10/9C$ 608
Wed 14/106:45 p.m. -
Nonstop5h 19m
Sun 18/107:55 a.m. -
Nonstop4h 41m
Deal found 11/9C$ 609
Thu 1/104:55 p.m. -
Nonstop5h 18m
Sun 1/118:19 a.m. -
Nonstop4h 46m
Deal found 14/9C$ 615
Wed 2/125:15 p.m. -
Nonstop5h 41m
Tue 5/18:29 a.m. -
Nonstop4h 36m
Deal found 15/9C$ 618
Last-minute flights from Pearson Intl to Seattle
Discover last-minute flight deals from Pearson Intl to Seattle. Data last updated 15 September 2026 and is based on user searches.
Wed 30/96:10 a.m. -
2 stops15h 35m
Thu 1/1010:30 a.m. -
1 stop7h 45m
Deal found 14/9C$ 480
Thu 1/101:30 p.m. -
1 stop8h 15m
Sun 1/112:30 p.m. -
1 stop17h 25m
Deal found 14/9C$ 476
Sat 3/1010:20 p.m. -
2 stops14h 20m
Sat 17/107:35 p.m. -
2 stops12h 25m
Deal found 15/9C$ 474
Tue 6/1011:10 p.m. -
2 stops13h 30m
Sat 17/1010:30 a.m. -
1 stop9h 15m
Deal found 15/9C$ 473
Wed 7/101:30 p.m. -
1 stop8h 15m
Fri 11/122:30 p.m. -
2 stops12h 15m
Deal found 10/9C$ 483
Sat 10/1010:55 p.m. -
2 stops13h 45m
Tue 13/107:35 p.m. -
2 stops20h 00m
Deal found 15/9C$ 470
Wed 14/103:30 p.m. -
2 stops21h 10m
Wed 28/103:30 p.m. -
2 stops12h 15m
Deal found 14/9C$ 479
Fri 16/1010:55 p.m. -
2 stops13h 45m
Thu 22/107:35 p.m. -
1 stop7h 10m
Deal found 12/9C$ 424
Wed 21/101:30 p.m. -
1 stop8h 15m
Fri 30/103:30 p.m. -
2 stops12h 15m
Deal found 11/9C$ 481
Fri 23/1010:55 p.m. -
2 stops13h 45m
Sat 24/107:35 p.m. -
1 stop8h 20m
Deal found 11/9C$ 477
Fri 23/101:30 p.m. -
1 stop8h 15m
Wed 28/103:30 p.m. -
2 stops12h 15m
Deal found 11/9C$ 484
One-way flights from Pearson Intl to Seattle
Search for one-way flight options from Pearson Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated 15 September 2026.
Mon 5/1010:25 p.m. -
1 stop23h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 306
Fri 25/97:00 a.m. -
1 stop29h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 12/9C$ 307
Sat 14/118:00 p.m. -
1 stop20h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 309
Tue 22/96:10 a.m. -
2 stops15h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 310
Sat 10/1010:20 p.m. -
2 stops14h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 10/9C$ 313
Mon 9/115:15 p.m. -
Nonstop5h 30m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 314
Wed 2/1210:20 p.m. -
2 stops18h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 316
Wed 30/912:40 p.m. -
3 stops22h 52m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 317
Wed 7/108:00 a.m. -
3 stops13h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 319
Thu 15/108:00 a.m. -
3 stops13h 45m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 320
Thu 22/1011:10 p.m. -
3 stops22h 35m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 11/9C$ 321
Thu 25/212:30 p.m. -
1 stop28h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 323
Find flight deals from Pearson Intl to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Pearson Intl (YYZ) to Seattle (SEA). 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 15 September 2026.
Customize your flight search to find flights from Pearson Intl to Seattle 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 7,457,451 searches. Data last updated 15 September 2026.
Use the filters below to find and compare flights from Toronto Pearson Intl Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
Quickest round-trip
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Wed 30/9
4:55 p.m.-7:13 p.m.
Nonstop5h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 342
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Thu 1/10
4:55 p.m.-7:13 p.m.
Nonstop5h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 342
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 10/10
1:34 p.m.-11:52 p.m.
1 stop13h 18m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 346
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 14/11
8:35 a.m.-4:26 p.m.
2 stops10h 51m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 24/10
8:50 a.m.-9:15 p.m.
3 stops15h 25m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 3/10
8:50 a.m.-9:15 p.m.
3 stops15h 25m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 10/10
2:35 p.m.-8:37 p.m.
1 stop9h 02m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Thu 15/10
11:00 a.m.-8:37 p.m.
2 stops12h 37m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Fri 9/10
9:00 p.m.-9:36 a.m.
1 stop15h 36m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 356
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Tue 6/10
8:50 a.m.-9:15 p.m.
3 stops15h 25m
Seattle/Tacoma Intl
Wed 31/12
12:00 a.m.-3:00 a.m.
Nonstop0h 00m
C$ 358
Flights are sorted by cheapest round-trip flights first.
Deals found on 11/9
Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3
Best time to book a flight from Pearson Intl to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Pearson Intl with our price prediction graph.
YYZ-SEA
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.
Cheapflights Insights
Everything you need to know about your flight from Toronto Pearson Intl Airport to Seattle
Prices
Delays
More
How far ahead should I book a flight from Toronto Pearson Intl Airport to Seattle?
Booking 85 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto Pearson Intl Airport to Seattle. 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 Toronto Pearson Intl Airport to Seattle?
Currently, February is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to Seattle (average of C$ 324). Flying from Toronto Pearson Intl Airport to Seattle in September is currently the most expensive (average of C$ 662). 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 YYZ to SEA?
Find hourly flight availability from Pearson Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2026.
When flying from Toronto Pearson Intl Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Toronto Pearson Intl Airport to Seattle?
Airfare is below average for this route at the moment.
Toronto Pearson Intl Airport to Seattle flights typically cost between C$ 495 and C$ 775 in October.The cheapest round-trip price found within the last 5 days was C$ 424 on WestJet (16 Oct-22 Oct).
How often are flights from Toronto to Seattle delayed?
About 29% of weekly flights between Toronto and Seattle have experienced delays in the past year, with the average delay time being 153 minutes.
What is the most punctual flight time for Toronto to Seattle flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Toronto to Seattle flights?
Over the past year, Alaska Airlines has had the lowest number of delays on this route, with just 17% of flights being delayed.
What’s the top layover airport for flights from Toronto Pearson Intl Airport to Seattle?
Share of one-stop round-trip flights from Toronto Pearson Intl Airport to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.
Calgary (YYC) – chosen by Cheapflights users on 79% of one-stop itineraries from Toronto Pearson Intl Airport to Seattle on Cheapflights.
What’s the cheapest layover airport for flights from Toronto Pearson Intl Airport to Seattle?
Average round-trip fare for 1-stop flights from Toronto Pearson Intl Airport to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 474.
What’s the fastest layover option from Toronto Pearson Intl Airport to Seattle?
Shortest average travel time for 1-stop one-way flights from Toronto Pearson Intl Airport to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 8h 14m.
Which airport typically offers the quickest layover for flights from Toronto Pearson Intl Airport to Seattle?
Average layover duration for 1-stop one-way flights from Toronto Pearson Intl Airport to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Philadelphia (PHL) offer the fastest connection on this route, with an average layover time of 0h 56m.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 15 September 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines
from Toronto Pearson Intl Airport to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Related info for your journey
Find useful and relevant information for your journey from Pearson Intl to Seattle. 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 into for flights to Seattle from Toronto Pearson Intl?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Toronto Pearson Intl to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Toronto Pearson Intl; the airport handles an average of 2 inbound flights from Toronto Pearson Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Seattle airport from Toronto Pearson Intl. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.
How long is the flight from Toronto Pearson Intl Airport to Seattle?
There are many flights that can get you from Toronto Pearson Intl Airport to Seattle in 5h 30m. Fly via Alaska Airlines or United Airlines to get the fastest option. Toronto Pearson Intl Airport and Seattle are separated by a distance of 3306 km. This flight may include one or multiple stops.
What are the cheapest airlines flying from Toronto Pearson Intl Airport to Seattle round-trip?
According to our current data, Delta (C$ 225), Alaska Airlines (C$ 268), and WestJet (C$ 275) offers the cheapest pricing from Toronto Pearson Intl Airport to Seattle. Delta is 56% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Toronto Pearson Intl Airport to Seattle one-way?
The cheapest airlines for a one-way flight from Toronto Pearson Intl Airport to Seattle are Alaska Airlines (C$ 170), WestJet (C$ 191), and United Airlines (C$ 218).
What are the most reliable airlines from Toronto Pearson Intl Airport to Seattle?
Consider Alaska Airlines (85%), Brussels Airlines (35%) or Air Canada (35%) when booking your flight. These represent the most reliable airlines when flying from Toronto Pearson Intl Airport to Seattle.
What are the cheapest flights from Toronto Pearson Intl Airport to Seattle?
The cheapest flight price from Toronto Pearson Intl Airport to Seattle is C$ 340. On average you can expect to pay C$ 747. The most popular route, (Toronto Pearson Intl - Seattle/Tacoma Intl), can usually be booked for C$ 491.
Can I find deals for business class flights from Pearson Intl to Seattle?
Yes. Cheapflights offers flight deals from Pearson Intl to Seattle 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 Toronto Pearson Intl Airport to Seattle?
Currently, February is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to Seattle (average of C$ 324). Flying from Toronto Pearson Intl Airport to Seattle in September is currently the most expensive (average of C$ 662). 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.
Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Mukilteo
Leavenworth
Tacoma
Renton
Cashmere
Lynnwood
Ellensburg
Tukwila
Marysville
Federal Way
Kirkland
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Fly from Pearson Intl to Seattle on these airlines
Choose from the following airlines for your flight from Pearson Intl to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Browse through other flights departing from Pearson Intl. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 15 September 2026.
Top 5 airlines flying from Pearson Intl to Seattle
Discover the top 5 airlines that operate flights from Pearson Intl to Seattle. 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 7,457,451 searches. Data last updated 15 September 2026.
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 Pearson Intl to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Pearson Intl today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Pearson Intl to Seattle?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Pearson Intl.
Can Cheapflights find flights from Pearson Intl to Seattle with no change fees?
Certainly. Search results for flights to Seattle from Pearson Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Pearson Intl to Seattle become cheaper?
Yes, Cheapflights offers price alerts on Pearson Intl to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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