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

Return flights

30 Apr - 10 May	SWISS
09 Apr - 01 May	Qatar Airways
15 Apr - 22 Apr	easyJet
08 Apr - 22 Apr	SWISS
17 Apr - 06 May	Qatar Airways
25 Apr - 02 May	Qatar Airways
25 Apr - 09 May	Qatar Airways
24 Apr - 02 May	Qatar Airways
10 Apr - 24 Apr	Aegean Airlines
24 Apr - 03 May	Qatar Airways
06 Apr - 13 Apr	Turkish Airlines
02 Apr - 10 Apr	KLM

Also check the deals for one-way flights from Porto 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 Porto to Bangkok in April from 612€

Return flights