Cheapest return flights from Barcelona to Keflavik in September from 160€

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

20 Sep - 01 Oct Vueling Airlines
20 Sep - 30 Sep Vueling Airlines
26 Sep - 01 Oct Vueling Airlines
20 Sep - 27 Sep Vueling Airlines
25 Sep - 30 Sep Vueling Airlines
29 Sep - 09 Oct Vueling Airlines
15 Sep - 01 Oct Vueling Airlines
20 Sep - 23 Sep Vueling Airlines
24 Sep - 27 Sep Vueling Airlines
20 Sep - 28 Sep Vueling Airlines
17 Sep - 30 Sep Vueling Airlines
23 Sep - 27 Sep Vueling Airlines
02 Sep - 10 Sep easyJet
20 Sep - 25 Sep Vueling Airlines
29 Sep - 10 Oct Vueling Airlines
20 Sep - 03 Oct Vueling Airlines
24 Sep - 04 Oct Vueling Airlines
26 Sep - 05 Oct Vueling Airlines
21 Sep - 06 Oct easyJet
26 Sep - 06 Oct Ryanair

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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