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

Return flights

11 May - 25 May	Air China
25 May - 08 Jun	Air China
18 May - 01 Jun	Air China
19 May - 01 Jun	Air China
04 May - 19 May	easyJet
08 May - 21 May	Air China
11 May - 08 Jun	Iberia
11 May - 24 May	Iberia
01 May - 10 May	Wizz Air Malta
25 May - 07 Jun	KLM
01 May - 31 May	KLM
04 May - 17 May	Wizz Air Malta
09 May - 23 May	Aegean Airlines
18 May - 24 May	SWISS
18 May - 29 May	Finnair
25 May - 06 Jun	easyJet

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 620€

Return flights