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

Return flights

09 May - 19 May	easyJet
19 May - 26 May	easyJet
15 May - 27 May	easyJet
16 May - 27 May	easyJet
16 May - 30 May	easyJet
18 May - 28 May	Lufthansa
19 May - 31 May	easyJet
30 May - 10 Jun	easyJet
01 May - 09 May	easyJet
09 May - 16 May	Lufthansa
01 May - 10 May	easyJet
26 May - 02 Jun	easyJet
30 May - 13 Jun	Icelandair	direct
26 May - 02 Jun	Icelandair	direct
31 May - 08 Jun	Icelandair	direct
30 May - 10 Jun	Icelandair	direct
31 May - 10 Jun	Icelandair	direct
31 May - 11 Jun	Icelandair	direct
30 May - 11 Jun	Scandinavian Airlines

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 175€

Return flights