Cheapest return flights from Bangkok to Helsinki in September from 608€

AirHint found the following cheapest return flights from Bangkok (BKK) to Helsinki (HEL) in September 2025 (see full year).

Return flights

04 Sep - 11 Sep Thai Lion Air
08 Sep - 21 Sep IndiGo
05 Sep - 17 Sep IndiGo
30 Sep - 07 Oct IndiGo
27 Sep - 22 Oct IndiGo
24 Sep - 11 Oct IndiGo
17 Sep - 10 Oct IndiGo
28 Sep - 22 Oct Finnair direct
27 Sep - 22 Oct Finnair direct
30 Sep - 07 Oct Finnair direct
24 Sep - 11 Oct Finnair direct
05 Sep - 17 Sep Finnair direct
08 Sep - 21 Sep Finnair direct
04 Sep - 11 Sep Finnair direct

Also check the deals for one-way 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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