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
10 Apr - 01 May	Qatar Airways
05 Apr - 09 May	SWISS
03 Apr - 25 Apr	SWISS
15 Apr - 20 Apr	Turkish Airlines
05 Apr - 18 Apr	Turkish Airlines
07 Apr - 01 May	Qatar Airways
06 Apr - 01 May	Qatar Airways
08 Apr - 01 May	Qatar Airways
10 Apr - 16 Apr	SWISS

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 685€

Return flights