AirHint found the following cheapest return flights from Helsinki (HEL) to Bangkok (BKK) in May 2026 (see full year).

Return flights

31 May - 21 Jun	KLM
25 May - 21 Jun	Finnair
09 May - 16 May	Finnair
07 May - 14 May	Turkish Airlines
04 May - 18 May	Turkish Airlines
06 May - 16 May	Turkish Airlines
05 May - 12 May	Turkish Airlines
20 May - 17 Jun	Lufthansa
30 May - 23 Jun	Etihad Airways
30 May - 24 Jun	Etihad Airways
05 May - 12 May	Finnair	direct
20 May - 17 Jun	Finnair	direct
24 May - 31 May	KLM
29 May - 22 Jun	KLM
30 May - 20 Jun	KLM
17 May - 10 Jun	KLM
31 May - 24 Jun	Norwegian Air Sweden AOC
06 May - 16 May	Finnair	direct
07 May - 14 May	Finnair	direct
04 May - 18 May	Finnair	direct

Also check the deals for one-way flights from Helsinki to Bangkok in May.

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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Cheapest return flights from Helsinki to Bangkok in May from 570€

Return flights