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

Return flights

13 May - 20 May	easyJet
23 May - 28 May	easyJet
28 May - 31 May	Scandinavian Airlines
30 May - 06 Jun	easyJet
02 May - 11 May	Lufthansa
01 May - 17 May	easyJet
05 May - 16 May	Air France
04 May - 13 May	Vueling Airlines
24 May - 30 May	easyJet
01 May - 15 May	LOT
02 May - 08 May	Lufthansa
30 May - 07 Jun	easyJet
26 May - 18 Jun	Icelandair	direct
31 May - 06 Jun	Icelandair	direct
30 May - 07 Jun	Icelandair	direct
30 May - 06 Jun	Icelandair	direct
25 May - 05 Jun	Icelandair	direct

Also check the deals for one-way flights from Paris 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 Paris to Keflavik in May from 187€

Return flights