AirHint found the following cheapest return flights from Barcelona (BCN) to Bangkok (DMK) in May 2026 (see full year).

Return flights

19 May - 08 Jun	Qatar Airways
06 May - 19 May	Etihad Airways
06 May - 27 May	Etihad Airways
05 May - 19 May	Qatar Airways
06 May - 20 May	Etihad Airways
19 May - 26 May	Qatar Airways
28 May - 11 Jun	Etihad Airways
03 May - 12 May	Etihad Airways
05 May - 12 May	Etihad Airways
05 May - 21 May	Etihad Airways
05 May - 15 May	Qatar Airways
12 May - 26 May	Qatar Airways
31 May - 14 Jun	Turkish Airlines

Also check the deals for one-way flights from Barcelona 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 Barcelona to Bangkok in May from $768

Return flights