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

Return flights

02 Apr - 06 May	Hainan Airlines
11 Apr - 18 Apr	Thai AirAsia
01 Apr - 12 Apr	IndiGo
03 Apr - 13 Apr	Finnair
03 Apr - 22 Apr	Finnair
17 Apr - 26 Apr	Finnair
03 Apr - 03 May	Finnair
02 Apr - 04 Apr	Finnair
05 Apr - 22 Apr	Finnair
08 Apr - 15 Apr	Finnair
05 Apr - 30 Apr	Finnair
07 Apr - 15 Apr	Finnair
11 Apr - 02 May	Air France

Also check the deals for one-way flights from Bangkok to Lisbon 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 Bangkok to Lisbon in April from $730

Return flights