AirHint found the following cheapest return flights from Bangkok (DMK) to Barcelona (BCN) in October 2025 (see full year).

Return flights

20 Oct - 27 Oct	Thai AirAsia
07 Oct - 04 Nov	Thai Lion Air
19 Oct - 02 Nov	Nok Air
20 Oct - 02 Nov	Nok Air
07 Oct - 30 Oct	Thai Lion Air
01 Oct - 08 Oct	Nok Air
03 Oct - 06 Oct	Thai Lion Air
17 Oct - 26 Oct	Thai Lion Air
20 Oct - 05 Nov	Thai Lion Air
31 Oct - 07 Nov	Thai Lion Air
19 Oct - 26 Oct	AirAsia
04 Oct - 10 Oct	Thai Lion Air
01 Oct - 09 Oct	Thai Lion Air
03 Oct - 09 Oct	Thai Lion Air
04 Oct - 11 Oct	Thai Lion Air

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

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 October from 499€

Return flights