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

Return flights

03 Mar - 09 Mar	easyJet
02 Mar - 09 Mar	easyJet
05 Mar - 09 Mar	easyJet
01 Mar - 09 Mar	easyJet
09 Mar - 16 Mar	easyJet
12 Mar - 16 Mar	easyJet
06 Mar - 10 Mar	easyJet
04 Mar - 12 Mar	easyJet
12 Mar - 17 Mar	easyJet
05 Mar - 12 Mar	easyJet
27 Mar - 11 Apr	Vueling Airlines
30 Mar - 08 Apr	Fly Play	direct
30 Mar - 13 Apr	Fly Play	direct
26 Mar - 01 Apr	Fly Play	direct
24 Mar - 01 Apr	easyJet
27 Mar - 08 Apr	Vueling Airlines
27 Mar - 07 Apr	Vueling Airlines
23 Mar - 01 Apr	easyJet
30 Mar - 03 Apr	Fly Play	direct
30 Mar - 12 Apr	Vueling Airlines

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

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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Cheapest return flights from Barcelona to Keflavik in March from 122€

Return flights