Seattle / Tacoma (SEA) to Reykjavik (Keflavik) (KEF) flight deal in economy from $518

Tuesday, July 21st, 2026

5 round-trip options

Returning
Tue, Jul 28, 20267 Day Trip
$527 USD
Returning
Sat, Aug 1, 202611 Day Trip
$588 USD
Returning
Sun, Aug 2, 202612 Day Trip
$582 USD
Returning
Mon, Aug 3, 202613 Day Trip
$582 USD
Returning
Tue, Aug 4, 202614 Day Trip
$582 USD