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

Return flights

18 Aug - 01 Sep	Saudia
18 Aug - 03 Sep	Saudia
25 Aug - 08 Sep	Saudia
10 Aug - 28 Aug	Etihad Airways
22 Aug - 09 Sep	Iberia
18 Aug - 31 Aug	Saudia
18 Aug - 02 Sep	Saudia
28 Aug - 11 Sep	SWISS
27 Aug - 06 Sep	KLM
12 Aug - 26 Aug	Finnair
11 Aug - 25 Aug	Finnair
19 Aug - 02 Sep	Finnair
10 Aug - 13 Aug	Oman Air
11 Aug - 19 Aug	Kuwait Airways
11 Aug - 20 Aug	Finnair
09 Aug - 25 Aug	Finnair
06 Aug - 18 Aug	Finnair
06 Aug - 20 Aug	Finnair
17 Aug - 02 Sep	Finnair
24 Aug - 02 Sep	Finnair

Also check the deals for one-way flights from Barcelona to Bangkok in August.

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 August from $759

Return flights