AirHint found the following cheapest return flights from Basel (BSL) to Keflavik (KEF) in May 2026 (see full year).

Return flights

23 May - 27 May	easyJet	direct
30 May - 10 Jun	easyJet	direct
30 May - 03 Jun	easyJet	direct
30 May - 07 Jun	easyJet	direct
23 May - 06 Jun	easyJet
23 May - 30 May	easyJet
14 May - 25 May	KLM
13 May - 25 May	KLM
08 May - 17 May	KLM

Also check the deals for one-way flights from Basel to Keflavik in May.

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 Basel to Keflavik in May from 99€

Return flights