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

Return flights

06 May - 20 May	Etihad Airways
05 May - 21 May	Etihad Airways
05 May - 19 May	Etihad Airways
05 May - 26 May	Etihad Airways
01 May - 20 May	KLM
04 May - 25 May	Etihad Airways
01 May - 10 May	Etihad Airways
27 May - 03 Jun	Qatar Airways
25 May - 04 Jun	Iberia
06 May - 08 Jun	Qatar Airways
01 May - 29 May	Etihad Airways
08 May - 15 May	Etihad Airways
01 May - 15 May	Etihad Airways
20 May - 06 Jun	Qatar Airways
22 May - 05 Jun	Iberia
26 May - 07 Jun	Iberia
29 May - 07 Jun	Iberia
01 May - 01 Jun	Qatar 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 $609

Return flights