Cheapest return flights from Bangkok to Helsinki in September from $726

Best time to book flights for Bangkok (BKK) to Helsinki (HEL) flights at AirHint

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

Return flights

15 Sep - 22 Sep IndiGo
15 Sep - 21 Sep IndiGo
04 Sep - 11 Sep IndiGo
01 Sep - 16 Sep IndiGo
05 Sep - 14 Sep IndiGo
13 Sep - 27 Sep Air France
30 Sep - 08 Oct Qatar Airways
30 Sep - 08 Oct Finnair direct
15 Sep - 22 Sep Finnair direct
05 Sep - 14 Sep Finnair direct
04 Sep - 11 Sep Finnair direct
01 Sep - 16 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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