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

Return flights

17 Jan - 24 Jan	Ryanair
07 Jan - 21 Jan	Air Europa
12 Jan - 27 Jan	SWISS
15 Jan - 28 Jan	KLM
27 Jan - 12 Feb	SWISS
13 Jan - 23 Jan	Qatar Airways
19 Jan - 05 Feb	Qatar Airways
05 Jan - 20 Jan	Turkish Airlines
06 Jan - 06 Feb	Turkish Airlines
04 Jan - 04 Feb	Qatar Airways

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

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 January from 675€

Return flights