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

Return flights

11 May - 27 May	Iberia
06 May - 13 May	Iberia
20 May - 31 May	KLM
22 May - 05 Jun	Air Europa
24 May - 05 Jun	Air Europa
23 May - 05 Jun	Air Europa
24 May - 06 Jun	Air Europa
22 May - 06 Jun	Air Europa

Also check the deals for one-way flights from Bangkok to Barcelona 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 Barcelona in May from $725

Return flights