Seattle / Tacoma (SEA) to Reykjavik (Keflavik) (KEF) flight deal in economy from $491

Air CanadaACAir CanadaLufthansaLHLufthansaSwiss International Air LinesLXSwiss International Air LinesAustrian AirlinesOSAustrian AirlinesUnited AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
IcelandKEF

Keflavík International Airport

Reykjavik (Keflavik), Iceland
$1,028 USD
-52%$491 USD
Verified about 3 hours ago
Rare Availability
5% of dates checked are available within 10% of the lowest price

Thursday, December 10th, 2026

9 round-trip options

Returning
Tue, Dec 15, 2026•5 Day Trip
$888 USD
Google Flights
Returning
Thu, Dec 17, 2026•7 Day Trip
$804 USD
Google Flights
Returning
Fri, Dec 18, 2026•8 Day Trip
$1,025 USD
Google Flights
Returning
Sat, Dec 19, 2026•9 Day Trip
$864 USD
Google Flights
Returning
Sun, Dec 20, 2026•10 Day Trip
$967 USD
Google Flights
Returning
Mon, Dec 21, 2026•11 Day Trip
$864 USD
Google Flights
Returning
Tue, Dec 22, 2026•12 Day Trip
$910 USD
Google Flights
Returning
Wed, Dec 23, 2026•13 Day Trip
$881 USD
Google Flights
Returning
Thu, Dec 24, 2026•14 Day Trip
$864 USD
Google Flights