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

Wednesday, December 16th, 2026

9 round-trip options

Returning
Mon, Dec 21, 2026•5 Day Trip
$848 USD
Google Flights
Returning
Tue, Dec 22, 2026•6 Day Trip
$906 USD
Google Flights
Returning
Wed, Dec 23, 2026•7 Day Trip
$1,397 USD
Google Flights
Returning
Thu, Dec 24, 2026•8 Day Trip
$848 USD
Google Flights
Returning
Sat, Dec 26, 2026•10 Day Trip
$863 USD
Google Flights
Returning
Sun, Dec 27, 2026•11 Day Trip
$1,341 USD
Google Flights
Returning
Mon, Dec 28, 2026•12 Day Trip
$863 USD
Google Flights
Returning
Tue, Dec 29, 2026•13 Day Trip
$1,329 USD
Google Flights
Returning
Wed, Dec 30, 2026•14 Day Trip
$2,143 USD
Google Flights