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

Return flights

11 Oct - 14 Oct	Ryanair
20 Oct - 27 Oct	easyJet
15 Oct - 22 Oct	Ryanair
11 Oct - 19 Oct	Ryanair
12 Oct - 21 Oct	easyJet
03 Oct - 06 Oct	Ryanair
18 Oct - 25 Oct	Ryanair
30 Oct - 02 Nov	easyJet
27 Oct - 31 Oct	Ryanair
29 Oct - 02 Nov	Ryanair
10 Oct - 13 Oct	Ryanair
24 Oct - 30 Oct	Ryanair

Also check the deals for one-way flights from Nantes 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 Nantes to Keflavik in October from 220€

Return flights