AirHint found the following cheapest return flights from Turku (TKU) to Mariehamn (MHQ) in September 2025 (see full year).
Return flights
| 25 Sep - 29 Sep | PopulAir | direct | |
| 17 Sep - 19 Sep | Wizz Air | ||
| 19 Sep - 21 Sep | Scandinavian Airlines |
Also check the deals for one-way flights from Turku to Mariehamn in September.
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.
Find us on social media