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

Return flights

08 Oct - 15 Oct	Wizz Air
08 Oct - 14 Oct	Wizz Air
10 Oct - 15 Oct	Wizz Air
31 Oct - 03 Nov	Eurowings
11 Oct - 15 Oct	Wizz Air Malta
15 Oct - 19 Oct	Wizz Air
26 Oct - 03 Nov	Scandinavian Airlines
12 Oct - 17 Oct	KLM
06 Oct - 11 Oct	Wizz Air
17 Oct - 22 Oct	Wizz Air
13 Oct - 20 Oct	Wizz Air
05 Oct - 14 Oct	KLM

Also check the deals for one-way flights from Stuttgart 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 Stuttgart to Keflavik in October from $204

Return flights