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

Sunday, December 20th, 2026

8 round-trip options

Returning
Sat, Dec 26, 2026•6 Day Trip
$864 USD
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Returning
Sun, Dec 27, 2026•7 Day Trip
$1,343 USD
Google Flights
Returning
Mon, Dec 28, 2026•8 Day Trip
$864 USD
Google Flights
Returning
Tue, Dec 29, 2026•9 Day Trip
$1,330 USD
Google Flights
Returning
Wed, Dec 30, 2026•10 Day Trip
$3,020 USD
Google Flights
Returning
Thu, Dec 31, 2026•11 Day Trip
$937 USD
Google Flights
Returning
Sat, Jan 2, 2027•13 Day Trip
$2,087 USD
Google Flights
Returning
Sun, Jan 3, 2027•14 Day Trip
$3,962 USD
Google Flights