KEF to SEA from $660 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

$710 USD

-7%$660 USD

Verified 14 days ago

July 2026

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29 30 1 2 3 4 5$1,022 6$1,022 7$673 8$842 9$673 10$842 11$886 12$886 13$886 14$673 15$673 16$673 17$886 18$886 19$886 20$842 21$673 22$673 23$673 24$673 25$842 26$718 27$685 28$685 29$685 30$685 31$685 1$685 2$762

Great Availability

80% of dates checked are available within 10% of the lowest price

Thursday, July 2nd, 2026

0 round-trip options

No flight details available for this date.