AirHint found the following cheapest return flights from Lisbon (LIS) to Bangkok (BKK) in December 2025 (see full year).

Return flights

04 Dec - 14 Dec	Ryanair
05 Dec - 14 Dec	Ryanair
04 Dec - 11 Dec	Ryanair
03 Dec - 09 Dec	Ryanair
03 Dec - 12 Dec	Vueling Airlines
03 Dec - 10 Dec	easyJet
02 Dec - 09 Dec	Ryanair
01 Dec - 08 Dec	Ryanair
05 Dec - 12 Dec	Ryanair
01 Dec - 14 Dec	Pegasus Airlines
05 Dec - 16 Jan	Ryanair
03 Dec - 28 Jan	Vueling Airlines
10 Dec - 26 Jan	Wizz Air
12 Dec - 19 Jan	Wizz Air Malta
10 Dec - 22 Jan	Ryanair
01 Dec - 28 Jan	Ryanair
15 Dec - 16 Jan	Wizz Air Malta
12 Dec - 12 Jan	Wizz Air Malta
22 Dec - 16 Jan	Ryanair
22 Dec - 22 Jan	Ryanair

Also check the deals for one-way flights from Lisbon to Bangkok in December.

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 December from $601

Return flights