Cheapest return flights from Seattle to Keflavik in February from 472€

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 2025 (see full year).

Return flights

24 Feb - 04 Mar Alaska Airlines
24 Feb - 02 Mar Alaska Airlines
22 Feb - 02 Mar Spirit Airlines
25 Feb - 05 Mar Alaska Airlines
23 Feb - 03 Mar Alaska Airlines
17 Feb - 25 Feb Alaska Airlines
08 Feb - 15 Feb Alaska Airlines
27 Feb - 04 Mar Spirit Airlines
07 Feb - 14 Feb Frontier Airlines
09 Feb - 16 Feb Frontier Airlines
06 Feb - 10 Feb Frontier Airlines
18 Feb - 24 Feb jetBlue
06 Feb - 14 Feb Frontier Airlines
09 Feb - 17 Feb Frontier Airlines
03 Feb - 09 Feb Lufthansa
11 Feb - 16 Feb Spirit Airlines
27 Feb - 06 Mar Icelandair direct
25 Feb - 04 Mar Icelandair direct
27 Feb - 04 Mar Icelandair direct
23 Feb - 02 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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