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

One-Way flights

15 Dec	Thai VietJet Air
12 Dec	Thai VietJet Air
22 Dec	Nok Air
14 Dec	Thai VietJet Air
22 Dec	Iberojet	direct
08 Dec	Iberojet	direct
15 Dec	Iberojet	direct
19 Dec	Iberojet	direct
13 Dec	HK Express
30 Dec	VietJet Air

Also check the deals for return 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 one-way flights from Bangkok to Madrid in December from $333

One-Way flights