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

Return flights

02 May - 09 May	Vueling Airlines
06 May - 19 May	SWISS
15 May - 26 May	SWISS
02 May - 29 May	SWISS
05 May - 12 May	Ryanair
01 May - 12 May	SWISS
12 May - 21 May	SWISS
07 May - 21 May	SWISS
01 May - 03 Jun	SWISS
29 May - 16 Jun	SWISS
01 May - 08 May	TAP
10 May - 20 May	SWISS
31 May - 15 Jun	Ryanair
31 May - 14 Jun	Ryanair
31 May - 19 Jun	Ryanair
28 May - 02 Jun	Finnair

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

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 May from 588€

Return flights