Reykjavik (Keflavik) (KEF) to Seattle / Tacoma (SEA) flight deal in economy from $660

IcelandairFIIcelandair
Round Trip•Economy
IcelandKEF

Keflavík International Airport

Reykjavik (Keflavik), Iceland
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$710 USD
-7%$660 USD
Verified 15 days ago
Great Availability
80% of dates checked are available within 10% of the lowest price

Monday, August 3rd, 2026

8 round-trip options

Returning
Sat, Aug 8, 2026•5 Day Trip
$873 USD
Google Flights
Returning
Sun, Aug 9, 2026•6 Day Trip
$840 USD
Google Flights
Returning
Mon, Aug 10, 2026•7 Day Trip
$951 USD
Google Flights
Returning
Tue, Aug 11, 2026•8 Day Trip
$685 USD
Google Flights
Returning
Wed, Aug 12, 2026•9 Day Trip
$695 USD
Google Flights
Returning
Thu, Aug 13, 2026•10 Day Trip
$695 USD
Google Flights
Returning
Fri, Aug 14, 2026•11 Day Trip
$695 USD
Google Flights
Returning
Sun, Aug 16, 2026•13 Day Trip
$695 USD
Google Flights