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

Return flights

30 Jul - 13 Aug	Ryanair
02 Jul - 08 Jul	Iberia
08 Jul - 21 Jul	Ryanair
13 Jul - 20 Jul	Transavia France
25 Jul - 28 Jul	Volotea
04 Jul - 11 Jul	Ryanair
05 Jul - 12 Jul	Ryanair
07 Jul - 21 Jul	Volotea
13 Jul - 27 Jul	Vueling Airlines

Also check the deals for one-way flights from Nantes to Keflavik in July.

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 July from $393

Return flights