Cheapest return flights from Bilbao to Keflavik in September from $230

AirHint found the following cheapest return flights from Bilbao (BIO) to Keflavik (KEF) in September 2026 (see full year).

Return flights

14 Sep - 23 Sep easyJet
07 Sep - 16 Sep Vueling Airlines
12 Sep - 14 Sep Vueling Airlines
11 Sep - 20 Sep easyJet
07 Sep - 14 Sep Vueling Airlines
10 Sep - 20 Sep Vueling Airlines

Also check the deals for one-way flights from Bilbao to Keflavik in September.

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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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