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

Return flights

10 Apr - 22 Apr	TAP
09 Apr - 16 Apr	TAP
01 Apr - 10 Apr	Norwegian
15 Apr - 20 Apr	Finnair
03 Apr - 24 Apr	Finnair
10 Apr - 26 Apr	SWISS
08 Apr - 08 May	SWISS
11 Apr - 18 Apr	Finnair
01 Apr - 15 Apr	Finnair
02 Apr - 16 Apr	SWISS

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 719€

Return flights