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

Return flights

02 Mar - 03 Mar	easyJet
18 Mar - 24 Mar	easyJet
02 Mar - 19 Mar	easyJet
02 Mar - 04 Mar	easyJet
17 Mar - 24 Mar	easyJet
01 Mar - 03 Mar	easyJet
07 Mar - 14 Mar	easyJet
03 Mar - 09 Mar	easyJet
13 Mar - 16 Mar	easyJet
07 Mar - 16 Mar	easyJet
25 Mar - 04 Apr	Vueling Airlines
24 Mar - 01 Apr	Vueling Airlines
28 Mar - 15 Apr	easyJet
26 Mar - 04 Apr	Vueling Airlines
30 Mar - 06 Apr	Vueling Airlines
30 Mar - 07 Apr	Transavia France
31 Mar - 11 Apr	Vueling Airlines
29 Mar - 06 Apr	Vueling Airlines
19 Mar - 02 Apr	Vueling Airlines
27 Mar - 06 Apr	easyJet

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 123€

Return flights