AirHint found the following cheapest return flights from Porto (OPO) to Bangkok (BKK) in June 2026 (see full year).

Return flights

04 Jun - 15 Jun	SWISS
04 Jun - 17 Jun	SWISS
02 Jun - 06 Jul	SWISS
16 Jun - 22 Jul	Austrian Airlines
02 Jun - 14 Jul	SWISS
06 Jun - 14 Jul	Austrian Airlines
01 Jun - 30 Jun	SWISS
01 Jun - 15 Jun	SWISS
01 Jun - 07 Jul	SWISS
07 Jun - 29 Jun	Lufthansa
05 Jun - 10 Jul	SWISS
02 Jun - 10 Jul	SWISS
06 Jun - 10 Jul	Austrian Airlines
03 Jun - 13 Jun	easyJet
09 Jun - 13 Jun	Ryanair
04 Jun - 14 Jun	Ryanair
04 Jun - 10 Jun	Ryanair
22 Jun - 27 Jun	Aegean Airlines
16 Jun - 25 Jul	Austrian Airlines
03 Jun - 10 Jul	KLM

Also check the deals for one-way flights from Porto to Bangkok in June.

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 Porto to Bangkok in June from 590€

Return flights