AirHint found the following cheapest one-way flights from Stuttgart (STR) to Helsinki (HEL) in December 2025 (see full year).
One-Way flights
| 09 Dec | Wizz Air | ||
| 04 Dec | Wizz Air | ||
| 03 Dec | Wizz Air Malta | ||
| 14 Dec | KLM | ||
| 15 Dec | KLM | ||
| 05 Dec | KLM | ||
| 24 Dec | KLM | ||
| 18 Dec | Eurowings | ||
| 06 Dec | KLM | ||
| 01 Dec | Eurowings |
Also check the deals for return flights from Stuttgart to Helsinki in December.
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