KEF to SEA from $431 in economy – flightdeals.net

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Icelandair

Round Trip•Economy

Keflavík International Airport

Reykjavik (Keflavik), Iceland

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$653 USD

-34%$431 USD

Verified about 3 hours ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4$794 5$794 6$794 7$794 8$656 9$656 10$656 11$656 12$656 13$656 14$656 15$644 16$644 17$644 18$644 19$622 20$622 21$899 22$622 23$622 24$622 25$622 26$622 27$786 28$855 29$855 30$855 1$786 2$855 3$899 4$855 5$786

Limited Availability

18% of dates checked are available within 10% of the lowest price

Monday, June 1st, 2026

0 round-trip options

No flight details available for this date.