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

Return flights

13 May - 20 May	Air China
18 May - 01 Jun	Air China
19 May - 01 Jun	Air China
24 May - 01 Jun	Air China
25 May - 01 Jun	Air China
04 May - 24 May	Iberia
08 May - 27 May	Wizz Air Malta
05 May - 15 May	Air China
08 May - 20 May	Wizz Air Malta
04 May - 18 May	Iberia
25 May - 31 May	Iberia
18 May - 30 May	Finnair
01 May - 16 May	Finnair
18 May - 26 May	Wizz Air Malta

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 $725

Return flights