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

Return flights

14 Mar - 21 Mar	Wizz Air
05 Mar - 15 Mar	Wizz Air
04 Mar - 14 Mar	Wizz Air
05 Mar - 17 Mar	Jet2
12 Mar - 15 Mar	Wizz Air
19 Mar - 22 Mar	easyJet
07 Mar - 10 Mar	Wizz Air
14 Mar - 18 Mar	Wizz Air
02 Mar - 06 Mar	Wizz Air Malta
02 Mar - 08 Mar	Wizz Air
24 Mar - 07 Apr	Wizz Air
28 Mar - 08 Apr	Finnair
28 Mar - 11 Apr	Finnair
27 Mar - 07 Apr	easyJet
28 Mar - 05 Apr	Finnair
27 Mar - 06 Apr	Wizz Air
28 Mar - 04 Apr	Transavia France
28 Mar - 18 Apr	Vueling Airlines	direct
28 Mar - 11 Apr	Vueling Airlines	direct
28 Mar - 04 Apr	Vueling Airlines	direct

Also check the deals for one-way flights from Keflavik to Barcelona 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 Keflavik to Barcelona in March from 170€

Return flights