Seattle / Tacoma (SEA) to Reykjavik (Keflavik) (KEF) flight deal in economy from $519

Tuesday, August 11th, 2026

7 round-trip options

Returning
Sun, Aug 16, 20265 Day Trip
$846 USD
Returning
Mon, Aug 17, 20266 Day Trip
$846 USD
Returning
Tue, Aug 18, 20267 Day Trip
$646 USD
Returning
Wed, Aug 19, 20268 Day Trip
$646 USD
Returning
Thu, Aug 20, 20269 Day Trip
$1,020 USD
Returning
Sat, Aug 22, 202611 Day Trip
$1,084 USD
Returning
Tue, Aug 25, 202614 Day Trip
$711 USD