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

Return flights

10 Mar - 17 Mar	easyJet
02 Mar - 05 Mar	easyJet
17 Mar - 19 Mar	easyJet
10 Mar - 19 Mar	easyJet
10 Mar - 18 Mar	easyJet
03 Mar - 19 Mar	easyJet
24 Mar - 29 Mar	easyJet
11 Mar - 17 Mar	easyJet
09 Mar - 18 Mar	easyJet
11 Mar - 18 Mar	easyJet
24 Mar - 04 Apr	Vueling Airlines
26 Mar - 07 Apr	easyJet
10 Mar - 19 Apr	easyJet
27 Mar - 11 Apr	Ryanair
28 Mar - 11 Apr	Vueling Airlines
26 Mar - 08 Apr	easyJet
26 Mar - 02 Apr	Ryanair
27 Mar - 04 Apr	Wizz Air
30 Mar - 02 Apr	Vueling Airlines
30 Mar - 04 Apr	Wizz Air

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 127€

Return flights