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

Return flights

13 Jan - 23 Jan	Lufthansa
12 Jan - 28 Jan	SWISS
21 Jan - 06 Feb	SWISS
18 Jan - 31 Jan	SWISS
20 Jan - 10 Feb	SWISS
20 Jan - 24 Feb	SWISS
12 Jan - 26 Jan	SWISS
15 Jan - 28 Jan	SWISS
16 Jan - 23 Jan	Air France
29 Jan - 17 Feb	SWISS
15 Jan - 20 Jan	KLM
11 Jan - 25 Jan	SWISS
15 Jan - 26 Jan	KLM
11 Jan - 24 Jan	SWISS
24 Jan - 07 Feb	SWISS
10 Jan - 05 Feb	SWISS
22 Jan - 13 Feb	SWISS
20 Jan - 25 Feb	SWISS
29 Jan - 15 Feb	SWISS
14 Jan - 28 Feb	Etihad Airways

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

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 January from $778

Return flights