Cheapest return flights from Stuttgart to Keflavik in September from $261

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

Return flights

17 Sep - 21 Sep Wizz Air
16 Sep - 23 Sep Eurowings
20 Sep - 25 Sep Eurowings
10 Sep - 14 Sep Wizz Air
11 Sep - 16 Sep Wizz Air
25 Sep - 02 Oct Wizz Air
22 Sep - 05 Oct Wizz Air
13 Sep - 18 Sep Lufthansa
10 Sep - 17 Sep Wizz Air
13 Sep - 16 Sep Eurowings
08 Sep - 15 Sep Pegasus Airlines
17 Sep - 22 Sep Wizz Air

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

Skyscanner

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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