AirHint found the following cheapest return flights from Bangkok (DMK) to Helsinki (HEL) in December 2025 (see full year).
Return flights
| 27 Dec - 04 Jan | Thai AirAsia | ||
| 07 Dec - 14 Dec | Thai AirAsia | ||
| 17 Dec - 24 Dec | Thai AirAsia | ||
| 17 Dec - 20 Dec | Thai Lion Air |
Also check the deals for one-way flights from Bangkok to Helsinki in December.
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