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

Return flights

23 Dec - 04 Jan	Saudia
23 Dec - 30 Dec	Saudia
01 Dec - 08 Dec	Iberia
07 Dec - 14 Dec	Air China
24 Dec - 31 Dec	Air China
23 Dec - 31 Dec	Sichuan Airlines
20 Dec - 04 Jan	Saudia
05 Dec - 10 Dec	Iberia
04 Dec - 14 Dec	Saudia
19 Dec - 04 Jan	Air China
11 Dec - 17 Dec	Air China
12 Dec - 18 Dec	Air China
21 Dec - 04 Jan	Air China
24 Dec - 01 Jan	Air China
10 Dec - 25 Dec	Iberia
25 Dec - 01 Jan	Iberia
24 Dec - 03 Jan	Iberia
12 Dec - 02 Jan	Iberia
26 Dec - 04 Jan	Etihad Airways
26 Dec - 03 Jan	Finnair

Also check the deals for one-way flights from Bangkok to Madrid 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 Madrid in December from $623

Return flights