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

Return flights

06 Mar - 13 Mar	IndiGo
24 Mar - 10 Apr	Norse Atlantic Airways
12 Mar - 17 Mar	Norse Atlantic Airways (UK)
06 Mar - 20 Mar	Thai Lion Air
06 Mar - 26 Mar	Thai Lion Air
29 Mar - 11 Apr	Air France
12 Mar - 22 Mar	KLM
11 Mar - 17 Mar	Norse Atlantic Airways (UK)
08 Mar - 18 Mar	IndiGo
02 Mar - 12 Mar	IndiGo
13 Mar - 17 Apr	Thai Lion Air
09 Mar - 18 Mar	KLM
09 Mar - 16 Mar	KLM
30 Mar - 11 Apr	KLM
23 Mar - 17 Apr	Thai Lion Air
23 Mar - 17 Apr	Finnair	direct
13 Mar - 17 Apr	Finnair	direct
24 Mar - 10 Apr	Finnair	direct
30 Mar - 11 Apr	Finnair	direct
29 Mar - 11 Apr	Finnair	direct

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

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 Bangkok to Helsinki in March from $671

Return flights