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

Return flights

11 Jul - 18 Jul	Thai Lion Air
09 Jul - 16 Jul	Thai Lion Air
11 Jul - 24 Jul	Thai AirAsia X
12 Jul - 25 Jul	Thai Lion Air
25 Jul - 01 Aug	Thai AirAsia X
24 Jul - 27 Jul	Thai Lion Air
10 Jul - 15 Jul	AirAsia
13 Jul - 20 Jul	Thai Lion Air
15 Jul - 20 Jul	Thai Lion Air
12 Jul - 18 Jul	Thai AirAsia

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

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 July from 792€

Return flights