AirHint found the following cheapest one-way flights from Stuttgart (STR) to Kos (KGS) in May 2026 (see full year).
One-Way flights
| 19 May | Eurowings | direct | |
| 31 May | Aegean Airlines | ||
| 27 May | Eurowings | ||
| 18 May | Aegean Airlines | ||
| 27 May | TUIfly | direct |
Also check the deals for return flights from Stuttgart to Kos in May.
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