Cheapest return flights from Barcelona to Keflavik in September from 143€

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

Return flights

25 Sep - 02 Oct Vueling Airlines
24 Sep - 03 Oct Vueling Airlines
20 Sep - 05 Oct Vueling Airlines
24 Sep - 02 Oct Vueling Airlines
27 Sep - 05 Oct Vueling Airlines
21 Sep - 05 Oct Vueling Airlines
20 Sep - 25 Sep Vueling Airlines
17 Sep - 25 Sep Wizz Air Malta
04 Sep - 07 Sep Wizz Air Malta
24 Sep - 06 Oct Vueling Airlines
27 Sep - 03 Oct Vueling Airlines
16 Sep - 28 Sep Vueling Airlines
03 Sep - 07 Sep Wizz Air Malta
25 Sep - 01 Oct Vueling Airlines
28 Sep - 05 Oct Vueling Airlines
06 Sep - 10 Sep easyJet
10 Sep - 25 Sep Ryanair
20 Sep - 24 Sep easyJet
03 Sep - 06 Sep Wizz Air Malta
13 Sep - 17 Sep 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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