Cheapest return flights from Stuttgart to Keflavik in December from 221€

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

Return flights

03 Dec - 08 Dec KLM
04 Dec - 11 Dec KLM
04 Dec - 08 Dec KLM
10 Dec - 14 Dec KLM
11 Dec - 14 Dec KLM
12 Dec - 23 Dec Lufthansa
05 Dec - 09 Dec Eurowings
05 Dec - 07 Dec Scandinavian Airlines
05 Dec - 08 Dec Scandinavian Airlines
18 Dec - 24 Dec KLM
31 Dec - 06 Jan LOT
29 Dec - 10 Jan Scandinavian Airlines
25 Dec - 01 Jan KLM
31 Dec - 07 Jan KLM
30 Dec - 06 Jan Lufthansa
28 Dec - 07 Jan KLM
29 Dec - 06 Jan LOT
25 Dec - 04 Jan KLM
30 Dec - 05 Jan Scandinavian Airlines
31 Dec - 05 Jan KLM

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

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