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

Return flights

01 Dec - 16 Dec	Etihad Airways
07 Dec - 27 Dec	Etihad Airways
04 Dec - 19 Dec	Etihad Airways
08 Dec - 27 Dec	Etihad Airways
09 Dec - 24 Dec	Etihad Airways
08 Dec - 14 Dec	Etihad Airways
11 Dec - 16 Dec	Etihad Airways
02 Dec - 19 Dec	Etihad Airways
01 Dec - 29 Dec	Etihad Airways
02 Dec - 16 Dec	Pegasus Airlines
10 Dec - 14 Jan	Etihad Airways
08 Dec - 21 Jan	Etihad Airways
31 Dec - 18 Jan	Air China
07 Dec - 02 Jan	Etihad Airways
18 Dec - 25 Jan	Air China
12 Dec - 15 Jan	Air China
16 Dec - 07 Jan	Air China
11 Dec - 16 Jan	Air China
11 Dec - 25 Jan	Air China
31 Dec - 14 Jan	Air China

Also check the deals for one-way flights from Madrid 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 Madrid to Bangkok in December from 470€

Return flights