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

Return flights

26 Aug - 09 Sep	SWISS
27 Aug - 07 Sep	SWISS
27 Aug - 09 Sep	SWISS
25 Aug - 06 Sep	SWISS
26 Aug - 06 Sep	SWISS
27 Aug - 06 Sep	SWISS
27 Aug - 08 Sep	SWISS
23 Aug - 05 Sep	TAP
17 Aug - 02 Sep	Finnair
23 Aug - 04 Sep	Finnair
17 Aug - 25 Aug	Vueling Airlines
23 Aug - 31 Aug	TAP
04 Aug - 17 Aug	Air Serbia
24 Aug - 30 Aug	Iberia
11 Aug - 25 Aug	Ryanair
11 Aug - 24 Aug	Ryanair
09 Aug - 23 Aug	Ryanair
18 Aug - 31 Aug	TAP
17 Aug - 29 Aug	Vueling Airlines
07 Aug - 18 Aug	Ryanair

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Lisbon to Bangkok in August from $738

Return flights