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

Return flights

04 May - 18 May	KLM
25 May - 31 May	KLM
20 May - 31 May	KLM
12 May - 20 May	KLM
18 May - 01 Jun	KLM
14 May - 26 May	Etihad Airways
05 May - 19 May	Etihad Airways
06 May - 26 May	Etihad Airways
05 May - 12 May	Etihad Airways
06 May - 27 May	Etihad Airways
26 May - 09 Jun	Etihad Airways
11 May - 25 May	Etihad Airways
25 May - 07 Jun	Etihad Airways
25 May - 08 Jun	Etihad Airways
23 May - 12 Jun	Etihad Airways
25 May - 03 Jun	Wizz Air Malta
25 May - 01 Jun	SWISS
25 May - 04 Jun	Etihad Airways

Also check the deals for one-way flights from Madrid to Bangkok 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 Madrid to Bangkok in May from 510€

Return flights