Cheapest return flights from Barcelona to Keflavik in September from $175

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

06 Sep - 17 Sep easyJet
09 Sep - 17 Sep easyJet
23 Sep - 01 Oct easyJet
04 Sep - 13 Sep Scandinavian Airlines
19 Sep - 01 Oct easyJet
12 Sep - 20 Sep easyJet
02 Sep - 10 Sep easyJet
13 Sep - 20 Sep easyJet
10 Sep - 20 Sep Ryanair
02 Sep - 07 Sep easyJet
10 Sep - 17 Sep Ryanair
19 Sep - 21 Sep easyJet
26 Sep - 05 Oct easyJet
26 Sep - 04 Oct easyJet
22 Sep - 01 Oct Vueling Airlines
26 Sep - 06 Oct easyJet
30 Sep - 05 Oct easyJet
29 Sep - 05 Oct Vueling Airlines
26 Sep - 06 Oct Fly Play direct
19 Sep - 01 Oct Fly Play direct

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

Skyscanner

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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