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

Return flights

10 Aug - 26 Aug	Air Europa
05 Aug - 26 Aug	Air Europa
03 Aug - 20 Aug	Air Europa
13 Aug - 01 Sep	Finnair
21 Aug - 05 Sep	Finnair
29 Aug - 12 Sep	Finnair
29 Aug - 01 Sep	Finnair
03 Aug - 17 Aug	Air Europa
18 Aug - 31 Aug	Finnair
16 Aug - 30 Aug	SKY express
03 Aug - 10 Aug	Air Europa
15 Aug - 31 Aug	Finnair
18 Aug - 25 Aug	Finnair
26 Aug - 30 Aug	SKY express

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 686€

Return flights