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

Return flights

24 Dec - 10 Jan	Etihad Airways
25 Dec - 07 Jan	Etihad Airways
25 Dec - 09 Jan	Etihad Airways
24 Dec - 31 Dec	Etihad Airways
22 Dec - 04 Jan	IndiGo
13 Dec - 10 Jan	Norse Atlantic Airways
23 Dec - 11 Jan	IndiGo
20 Dec - 11 Jan	IndiGo
23 Dec - 10 Jan	IndiGo
25 Dec - 30 Dec	Etihad Airways
19 Dec - 10 Jan	IndiGo
25 Dec - 29 Dec	Etihad Airways
18 Dec - 14 Jan	Air China
24 Dec - 29 Dec	Etihad Airways
15 Dec - 29 Dec	Etihad Airways
05 Dec - 11 Dec	Thai Lion Air
16 Dec - 30 Dec	IndiGo
03 Dec - 10 Dec	IndiGo
09 Dec - 11 Dec	Air China
10 Dec - 13 Dec	Air China

Also check the deals for one-way flights from Bangkok to Barcelona 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 Bangkok to Barcelona in December from 442€

Return flights