$228+ Cheap flights from Pearson Intl (YYZ) to Seattle (SEA)
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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Pearson Intl to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Toronto Pearson Intl to Seattle/Tacoma Intl are usually found in February or January, booked 72 days in advance, depart on a Thursday or Saturday and return on a Tuesday
Cheap flight deals from Pearson Intl to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Pearson Intl to SeattleExplore 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 October 24, 2026.
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 October 24, 2026.
This Justfly.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:30 am -
1 stop9h 10m
Wed 12/92:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$324
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:00 am -
2 stops9h 40m
Sun 11/222:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$326
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:10 am -
1 stop10h 30m
Mon 11/232:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$327
This Trip.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:30 am -
1 stop9h 10m
Wed 12/22:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$328
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:30 am -
1 stop9h 10m
Wed 1/132:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/157:30 am -
1 stop9h 10m
Wed 12/302:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$333
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:10 am -
1 stop10h 30m
Tue 11/242:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$334
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:10 am -
1 stop10h 30m
Wed 1/132:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$335
This Trip.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:30 am -
1 stop9h 10m
Sat 11/282:20 pm -
2 stops12h 25m
Deal found 10/22![WestJet logo]()
$337
This Trip.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am -
1 stop9h 10m
Tue 11/242:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:30 am -
1 stop9h 10m
Thu 12/312:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$340
Best flights from Pearson Intl to SeattleDiscover 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 October 24, 2026.
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 October 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/205:15 pm -
Nonstop5h 58m
Tue 12/298:33 am -
Nonstop4h 32m
Deal found 10/21![Alaska Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:40 pm -
1 stop22h 59m
Mon 11/167:35 pm -
1 stop17h 39m
Deal found 10/23![United Airlines logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:50 am -
1 stop28h 02m
Mon 11/165:09 pm -
1 stop25h 43m
Deal found 10/24![Multiple Airlines logo]()
$547
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
1 stop8h 09m
Wed 12/26:00 am -
1 stop8h 20m
Deal found 10/23![Delta logo]()
$569
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:15 pm -
Nonstop5h 32m
Wed 12/28:33 am -
Nonstop4h 32m
Deal found 10/21![Alaska Airlines logo]()
$508
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:15 pm -
Nonstop5h 41m
Wed 12/98:33 am -
Nonstop4h 32m
Deal found 10/24![Alaska Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:20 am -
2 stops12h 09m
Sun 12/138:59 pm -
2 stops8h 56m
Deal found 10/22![Delta logo]()
$571
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:15 pm -
Nonstop5h 32m
Sun 11/298:31 am -
Nonstop4h 34m
Deal found 10/23![Alaska Airlines logo]()
$520
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:15 pm -
1 stop13h 45m
Mon 1/411:12 pm -
2 stops15h 42m
Deal found 10/24![Delta logo]()
$609
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:15 pm -
Nonstop5h 30m
Tue 1/58:29 am -
Nonstop4h 36m
Deal found 10/24![Alaska Airlines logo]()
$642
Last-minute flights from Pearson Intl to SeattleDiscover last-minute flight deals from Pearson Intl to Seattle. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Pearson Intl to Seattle. Data last updated October 24, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am -
1 stop9h 10m
Wed 12/92:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$335
This Trip.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am -
1 stop9h 10m
Tue 11/242:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$339
This FlightHub deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:30 am -
1 stop9h 10m
Thu 12/102:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$340
This Justfly.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:30 am -
1 stop9h 10m
Wed 12/92:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$324
This FlightHub deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:30 am -
1 stop9h 10m
Wed 12/92:30 pm -
2 stops12h 15m
Deal found 10/20![WestJet logo]()
$342
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:00 am -
2 stops9h 40m
Sun 11/222:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$326
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:10 am -
1 stop10h 30m
Mon 11/232:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$327
This Justfly.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:10 am -
1 stop10h 30m
Sun 11/222:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$334
This Trip.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:30 am -
1 stop9h 10m
Sat 11/282:20 pm -
2 stops12h 25m
Deal found 10/22![WestJet logo]()
$337
This Trip.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:30 am -
1 stop9h 10m
Wed 12/22:30 pm -
2 stops12h 15m
Deal found 10/21![WestJet logo]()
$328
One-way flights from Pearson Intl to SeattleSearch for one-way flight options from Pearson Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
Search for one-way flight options from Pearson Intl to Seattle. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/282:10 pm -
2 stops26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![WestJet logo]()
$228
This FlightHub deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/232:10 pm -
2 stops26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![WestJet logo]()
$229
This FlightHub deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:10 pm -
2 stops26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![WestJet logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/410:20 pm -
1 stop18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![WestJet logo]()
$231
This FlightHub deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:00 am -
2 stops33h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![WestJet logo]()
$232
This Justfly.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:10 pm -
2 stops26h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![WestJet logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:50 am -
1 stop15h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:20 pm -
1 stop18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![WestJet logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:10 pm -
1 stop23h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![WestJet logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:20 pm -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![WestJet logo]()
$237
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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $320 (Justfly.com) |
One-way from | $228 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $461 |
Good round-trip deal | $633 or less |
Good one-way deal | $298 or less |
Cheapflights Fare Finder
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 October 24, 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
Cheapest round-trip
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sun 11/22
8:30 pm-12:37 pm
1 stop19h 07m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$258
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Thu 11/19
6:10 am-1:40 pm
1 stop10h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$282
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Fri 12/4
5:15 pm-7:56 pm
Nonstop5h 41m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$285
Quickest round-trip
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Fri 11/27
5:15 pm-7:47 pm
Nonstop5h 32m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$287
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Thu 11/19
9:35 am-11:11 pm
3 stops16h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$298
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 11/14
6:45 am-8:47 pm
2 stops17h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$300
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sun 11/15
6:00 am-2:50 pm
1 stop11h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$329
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sat 12/19
4:10 pm-11:16 pm
1 stop10h 06m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$344
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Thu 11/12
10:53 am-11:18 pm
2 stops15h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$349
TorontoSeattle
YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl
YYZSEA
Toronto Pearson Intl
Sun 12/20
6:10 am-2:20 pm
1 stop11h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$351
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Pearson Intl to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pearson Intl to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Toronto Pearson Intl Airport-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Toronto Pearson Intl Airport-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Toronto Pearson Intl Airport-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Toronto Pearson Intl Airport-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Toronto Pearson Intl Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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
How far ahead should I book a flight from Toronto Pearson Intl Airport to Seattle?
To ensure you get the cheapest price possible for a flight from Toronto Pearson Intl Airport to Seattle, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 $233). Flying from Toronto Pearson Intl Airport to Seattle in December is currently the most expensive (average of $504). 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 October 24, 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 often are flights from Toronto to Seattle delayed?
About 30% of weekly flights between Toronto and Seattle have experienced delays in the past year, with the average delay time being 154 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 last year, Alaska Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.
The best insider tips for Toronto Pearson Intl Airport to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto Pearson Intl Airport to Seattle trip
Our travel experts
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 October 24, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Toronto Pearson Intl Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
Comfort
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jun 2026
LHR - SEA
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Pearson Intl and Seattle flights
Browse other Pearson Intl and Seattle flight options. Last updated on October 24, 2026.
Other flights from Pearson Intl
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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 October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$202 | Average$469 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$206 | Average$454 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$209 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$213 | Average$355 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$219 | Average$496 | FlexibilityNo cancel fee | On-time69% |