Cheapest return flights from Keflavik to Barcelona in September from $231

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

Return flights

01 Sep - 08 Sep easyJet
16 Sep - 26 Sep easyJet
12 Sep - 19 Sep Wizz Air Malta
03 Sep - 07 Sep easyJet
30 Sep - 21 Oct Vueling Airlines direct
02 Sep - 09 Sep easyJet
16 Sep - 30 Sep Vueling Airlines direct
16 Sep - 03 Oct Vueling Airlines direct
12 Sep - 30 Sep Vueling Airlines direct
12 Sep - 03 Oct Vueling Airlines direct
03 Sep - 06 Sep easyJet
16 Sep - 26 Sep Vueling Airlines direct
12 Sep - 26 Sep Vueling Airlines direct
30 Sep - 03 Oct Vueling Airlines direct
19 Sep - 03 Oct Vueling Airlines direct
23 Sep - 03 Oct Vueling Airlines direct
26 Sep - 03 Oct Vueling Airlines direct
30 Sep - 17 Oct Vueling Airlines direct
30 Sep - 14 Oct Vueling Airlines direct
16 Sep - 07 Oct Vueling Airlines direct

Also check the deals for one-way flights from Keflavik to Barcelona 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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