Toronto (YYZ) to Seattle / Tacoma (SEA) cheap flight deal from $237 USD in economy class

ACAir Canada

Round Trip•Economy

YYZ

Toronto Pearson International Airport

Toronto, Canada

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$412 USD

-42%$237 USD

Verified Sep 22, 2025 at 3:03 AM

October 2025

Today

Mon

Tue

Wed

Thu

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Sat

Sun

29$563 30$563 1$484 2$484 3$484 4$484 5$371 6$371 7$340 8$340 9$392 10$437 11$392 12$276 13$359 14$347 15$268 16$245 17$276 18$237 19$276 20$245 21$237 22$237 23$245 24$245 25$237 26$276 27$245 28$237 29$237 30$245 31$245 1 2

Fair Availability

28% of dates checked are available within 10% of the lowest price

Monday, October 6th, 2025

10 round-trip options

Returning

Sat, Oct 11, 2025•5 Day Trip

$474 USD

Google Flights

Returning

Sun, Oct 12, 2025•6 Day Trip

$405 USD

Google Flights

Returning

Mon, Oct 13, 2025•7 Day Trip

$493 USD

Google Flights

Returning

Tue, Oct 14, 2025•8 Day Trip

$404 USD

Google Flights

Returning

Wed, Oct 15, 2025•9 Day Trip

$371 USD

Google Flights

Returning

Thu, Oct 16, 2025•10 Day Trip

$379 USD

Google Flights

Returning

Fri, Oct 17, 2025•11 Day Trip

$379 USD

Google Flights

Returning

Sat, Oct 18, 2025•12 Day Trip

$371 USD

Google Flights

Returning

Sun, Oct 19, 2025•13 Day Trip

$443 USD

Google Flights

Returning

Mon, Oct 20, 2025•14 Day Trip

$379 USD

Google Flights