AirHint found the following cheapest return flights from Bilbao (BIO) to Bangkok (DMK) in December 2025 (see full year).

Return flights

25 Dec - 06 Jan	Vueling Airlines
27 Dec - 06 Jan	Vueling Airlines
26 Dec - 06 Jan	Vueling Airlines
09 Dec - 24 Dec	Vueling Airlines
20 Dec - 28 Dec	Turkish Airlines
01 Dec - 15 Dec	Vueling Airlines
27 Dec - 05 Jan	Vueling Airlines
28 Dec - 06 Jan	Lufthansa
18 Dec - 04 Jan	Turkish Airlines
16 Dec - 04 Jan	Lufthansa
22 Dec - 04 Jan	Lufthansa
26 Dec - 09 Jan	Lufthansa
28 Dec - 05 Jan	Turkish Airlines

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

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Bilbao to Bangkok in December from $1204

Return flights