Cheapest return flights from Helsinki to Bangkok in December from $647

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

Return flights

03 Dec - 17 Dec Scandinavian Airlines
02 Dec - 22 Jan Scandinavian Airlines
05 Dec - 31 Jan Lufthansa
08 Dec - 25 Dec Turkish Airlines
01 Dec - 29 Jan Turkish Airlines
07 Dec - 17 Dec Turkish Airlines
02 Dec - 31 Jan Turkish Airlines
07 Dec - 14 Dec Turkish Airlines
07 Dec - 17 Jan Turkish Airlines
05 Dec - 27 Dec Norwegian Air Sweden AOC
02 Dec - 23 Dec Norwegian Air Sweden AOC
05 Dec - 31 Dec Austrian Airlines
02 Dec - 13 Jan Turkish Airlines
11 Dec - 21 Dec Air France
11 Dec - 22 Jan Air France
31 Dec - 14 Jan Turkish Airlines
31 Dec - 31 Jan Turkish Airlines
01 Dec - 31 Dec Lufthansa
29 Dec - 22 Jan Air France
07 Dec - 17 Dec Finnair direct

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

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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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