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

Return flights

28 Apr - 10 May	SWISS
30 Apr - 10 May	SWISS
16 Apr - 30 Apr	Finnair
08 Apr - 19 Apr	Finnair
03 Apr - 16 Apr	Finnair
01 Apr - 18 Apr	Finnair
16 Apr - 20 Apr	Etihad Airways
24 Apr - 03 May	Finnair
02 Apr - 18 Apr	Finnair
17 Apr - 25 Apr	Finnair
06 Apr - 13 Apr	Turkish Airlines
18 Apr - 26 Apr	Turkish Airlines

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

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 April from $791

Return flights