£337 Cheap KLM flights from Seattle to Reykjavik (SEA→KEF)

View £337 flight on Mon, 8 Sep 2025Opens in a new window

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KLM flights from Seattle to Reykjavik (SEA→KEF)

Prices were available within the past 7 days and start at £337 for one-way flights and £417 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Wed, 24 Sep - Wed, 1 Oct
SEA
Seattle
KEF
Reykjavik
£417 Return, found 2 hours ago
£417
Return
found 2 hours ago
Select KLM flight, departing Wed, 24 Sep from Seattle to Reykjavik, returning Wed, 1 Oct, priced at £417 found 2 hours ago
KLM
Mon, 15 Sep - Mon, 22 Sep
SEA
Seattle
KEF
Reykjavik
£426 Return, found 17 hours ago
£426
Return
found 17 hours ago
Select KLM flight, departing Mon, 15 Sep from Seattle to Reykjavik, returning Mon, 22 Sep, priced at £426 found 17 hours ago
Flight from Seattle to Reykjavik route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Airlines serving
American Airlines, British Airways, Icelandair, Lufthansa
Popular airline
Icelandair
Distance
5776 km
Average flight time
14 hours 28 mins
*Available to Expedia members.