Cheapest return flights from Barcelona to Keflavik in September from $147

Best time to book flights for Barcelona (BCN) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Barcelona (BCN) to Keflavik (KEF) in September 2025 (see full year).

Return flights

27 Sep - 07 Oct easyJet
24 Sep - 30 Sep easyJet
13 Sep - 30 Sep easyJet
24 Sep - 08 Oct easyJet
16 Sep - 23 Sep easyJet
24 Sep - 01 Oct easyJet
13 Sep - 27 Sep easyJet
10 Sep - 27 Sep easyJet
27 Sep - 02 Oct easyJet
10 Sep - 24 Sep easyJet
13 Sep - 24 Sep easyJet
23 Sep - 27 Sep easyJet
24 Sep - 04 Oct Vueling Airlines
26 Sep - 04 Oct Vueling Airlines
17 Sep - 24 Sep easyJet
27 Sep - 05 Oct Vueling Airlines
09 Sep - 23 Sep easyJet
22 Sep - 01 Oct Vueling Airlines
26 Sep - 05 Oct Vueling Airlines
30 Sep - 06 Oct easyJet

Also check the deals for one-way flights from Barcelona 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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