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

Return flights

02 Dec - 15 Dec	Wizz Air
10 Dec - 16 Dec	Vueling Airlines
11 Dec - 16 Dec	Vueling Airlines
18 Dec - 23 Dec	AZAL
12 Dec - 25 Jan	Pegasus Airlines
08 Dec - 23 Dec	AJet
10 Dec - 22 Dec	AJet
15 Dec - 22 Dec	Vueling Airlines
09 Dec - 23 Dec	Vueling Airlines
04 Dec - 22 Dec	AZAL
09 Dec - 22 Dec	Vueling Airlines
16 Dec - 14 Jan	AZAL
13 Dec - 12 Jan	AJet
31 Dec - 17 Jan	Pegasus Airlines
09 Dec - 12 Jan	Vueling Airlines
09 Dec - 19 Jan	Vueling Airlines
11 Dec - 12 Jan	Vueling Airlines
10 Dec - 16 Jan	Vueling Airlines
25 Dec - 20 Jan	Wizz Air
23 Dec - 24 Jan	AZAL

Also check the deals for one-way flights from Barcelona 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.

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Cheapest return flights from Barcelona to Bangkok in December from 523€

Return flights