AirHint found the following cheapest return flights from Bangkok (BKK) to Madrid (MAD) in May 2026 (see full year).

Return flights

15 May - 28 May	Iberojet	direct
15 May - 21 May	Iberojet	direct
08 May - 21 May	Iberojet	direct
07 May - 22 May	Sichuan Airlines
21 May - 29 May	KLM
01 May - 14 May	Iberojet	direct
08 May - 14 May	Iberojet	direct
19 May - 16 Jun	China Southern
07 May - 21 May	Hainan Airlines
02 May - 16 May	Hainan Airlines
08 May - 25 May	Thai AirAsia

Also check the deals for one-way flights from Bangkok to Madrid in May.

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 May from $599

Return flights