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

Monday, July 20th, 2026

5 round-trip options

Returning
Mon, Jul 27, 20267 Day Trip
$582 USD
Returning
Fri, Jul 31, 202611 Day Trip
$636 USD
Returning
Sat, Aug 1, 202612 Day Trip
$641 USD
Returning
Sun, Aug 2, 202613 Day Trip
$636 USD
Returning
Mon, Aug 3, 202614 Day Trip
$636 USD