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

Return flights

18 Aug - 06 Sep	Aegean Airlines
27 Aug - 06 Sep	Etihad Airways
12 Aug - 09 Sep	IndiGo
12 Aug - 23 Aug	IndiGo
17 Aug - 03 Sep	TAP
13 Aug - 01 Sep	TAP
23 Aug - 06 Sep	Ryanair
17 Aug - 28 Aug	TAP
16 Aug - 24 Aug	Ryanair
23 Aug - 31 Aug	Ryanair
17 Aug - 22 Aug	TAP
13 Aug - 31 Aug	TAP
11 Aug - 01 Sep	Etihad Airways
17 Aug - 04 Sep	TAP
09 Aug - 23 Aug	TAP
06 Aug - 03 Sep	Etihad Airways
01 Aug - 11 Aug	Wizz Air
09 Aug - 15 Aug	TAP
09 Aug - 27 Aug	TAP
12 Aug - 02 Sep	IndiGo

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 693€

Return flights