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

Return flights

30 Sep - 04 Oct	easyJet	direct
23 Sep - 30 Sep	easyJet	direct
16 Sep - 30 Sep	easyJet	direct
02 Sep - 09 Sep	easyJet	direct
23 Sep - 25 Sep	easyJet
06 Sep - 20 Sep	Transavia France	direct
09 Sep - 11 Sep	easyJet
02 Sep - 08 Oct	Transavia France
27 Sep - 02 Oct	easyJet
30 Sep - 09 Oct	easyJet
20 Sep - 27 Sep	easyJet	direct
04 Sep - 16 Sep	Transavia France	direct
13 Sep - 20 Sep	easyJet	direct
27 Sep - 09 Oct	easyJet
04 Sep - 15 Sep	Transavia France
20 Sep - 02 Oct	easyJet
04 Sep - 02 Oct	Transavia France
24 Sep - 03 Oct	easyJet
27 Sep - 05 Oct	easyJet
27 Sep - 31 Oct	easyJet

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

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 September from $197

Return flights