Cheapest one-way flights from Bangkok to Helsinki in September from $364

AirHint found the following cheapest one-way flights from Bangkok (DMK) to Helsinki (HEL) in September 2025 (see full year).

One-Way flights

30 Sep Thai Lion Air
10 Sep Thai Lion Air
15 Sep Thai AirAsia X
26 Sep Thai AirAsia
11 Sep Thai Lion Air
28 Sep Thai Lion Air
07 Sep Thai Lion Air
08 Sep Thai Lion Air
09 Sep Thai Lion Air
05 Sep Thai AirAsia

Also check the deals for return flights from Bangkok to Helsinki 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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