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

Return flights

27 Aug - 10 Sep	SWISS
28 Aug - 11 Sep	SWISS
13 Aug - 01 Sep	SWISS
14 Aug - 29 Aug	SKY express
16 Aug - 31 Aug	SKY express
16 Aug - 02 Sep	SKY express
17 Aug - 31 Aug	Air Europa
11 Aug - 29 Aug	SWISS
06 Aug - 19 Aug	SWISS
05 Aug - 17 Aug	Air Europa
14 Aug - 28 Aug	SKY express
15 Aug - 02 Sep	SWISS
14 Aug - 22 Aug	SKY express
09 Aug - 23 Aug	Finnair
21 Aug - 24 Aug	Finnair

Also check the deals for one-way flights from Lisbon 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 Lisbon to Bangkok in August from 592€

Return flights