SEA to KEF from $510 in economy – flightdeals.net

Home Premium Fare Deals About

Air Canada

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Keflavík International Airport

Reykjavik (Keflavik), Iceland

$857 USD

-40%$510 USD

Verified 13 days ago

October 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

28$757 29$757 30$757 1$757 2$757 3$757 4$762 5$761 6$757 7$762 8$757 9$762 10$757 11$762 12$762 13$757 14$762 15$757 16$762 17$757 18$762 19$766 20$4,160 21 22 23 24 25 26 27 28 29 30 31 1

Limited Availability

11% of dates checked are available within 10% of the lowest price

Friday, October 16th, 2026

4 round-trip options

Returning

Wed, Oct 21, 2026•5 Day Trip

$917 USD

Returning

Thu, Oct 22, 2026•6 Day Trip

$766 USD

Returning

Fri, Oct 23, 2026•7 Day Trip

$762 USD

Returning

Sat, Oct 24, 2026•8 Day Trip

$766 USD