AirHint found the following cheapest return flights from Paris (CDG) to Keflavik (KEF) in October 2025 (see full year).

Return flights

27 Oct - 10 Nov	Icelandair	direct
31 Oct - 07 Nov	LOT
31 Oct - 08 Nov	easyJet
30 Oct - 08 Nov	Icelandair	direct
31 Oct - 10 Nov	easyJet
27 Oct - 16 Nov	Icelandair	direct
31 Oct - 06 Nov	easyJet
30 Oct - 07 Nov	easyJet
30 Oct - 04 Nov	easyJet
19 Oct - 10 Nov	Condor
22 Oct - 26 Oct	Norwegian
20 Oct - 27 Oct	Condor
23 Oct - 27 Oct	Norwegian
16 Oct - 22 Oct	Norwegian
21 Oct - 27 Oct	LOT
21 Oct - 26 Oct	LOT
15 Oct - 22 Oct	easyJet
22 Oct - 28 Oct	Norwegian
22 Oct - 25 Oct	easyJet
16 Oct - 21 Oct	Norwegian

Also check the deals for one-way flights from Paris to Keflavik in October.

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 October from 284€

Return flights