Cheapest return flights from Seattle to Keflavik in February from $699

Best time to book flights for Seattle (SEA) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Keflavik (KEF) in February 2026 (see full year).

Return flights

06 Feb - 14 Feb Lufthansa
20 Feb - 28 Feb Lufthansa
27 Feb - 07 Mar Lufthansa
03 Feb - 11 Feb Alaska Airlines
16 Feb - 24 Feb Alaska Airlines
04 Feb - 12 Feb Alaska Airlines
19 Feb - 27 Feb Alaska Airlines
18 Feb - 26 Feb Alaska Airlines
22 Feb - 02 Mar Alaska Airlines
23 Feb - 03 Mar Alaska Airlines
25 Feb - 05 Mar Alaska Airlines
24 Feb - 04 Mar Alaska Airlines
21 Feb - 01 Mar Hawaiian Airlines
15 Feb - 23 Feb Hawaiian Airlines
05 Feb - 13 Feb Lufthansa
02 Feb - 10 Feb Alaska Airlines
26 Feb - 06 Mar Icelandair direct
22 Feb - 02 Mar Icelandair direct
23 Feb - 03 Mar Icelandair direct
25 Feb - 05 Mar Icelandair direct

Also check the deals for one-way flights from Seattle to Keflavik in February.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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