AirHint found the following cheapest return flights from Porto (OPO) to Bangkok (BKK) in October 2025 (see full year).

Return flights

21 Oct - 29 Oct	Ryanair
28 Oct - 11 Nov	Ryanair
18 Oct - 30 Oct	Air Europa
03 Oct - 17 Oct	Ryanair
03 Oct - 23 Oct	Ryanair
01 Oct - 29 Oct	easyJet
07 Oct - 14 Oct	Ryanair
02 Oct - 23 Oct	Ryanair
22 Oct - 28 Oct	easyJet
31 Oct - 12 Nov	Ryanair
04 Oct - 14 Oct	Ryanair
04 Oct - 23 Oct	Ryanair
27 Oct - 09 Nov	Ryanair
31 Oct - 15 Nov	Ryanair
25 Oct - 08 Nov	Air Europa
31 Oct - 14 Nov	Qatar Airways
20 Oct - 04 Nov	KLM

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

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 October from 575€

Return flights