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

Return flights

07 Dec - 22 Dec	Iberia
06 Dec - 22 Dec	Air Europa
05 Dec - 22 Dec	Air Europa
08 Dec - 22 Dec	Ryanair
11 Dec - 25 Dec	Lufthansa
16 Dec - 24 Dec	Ryanair
02 Dec - 13 Dec	SWISS
09 Dec - 12 Dec	Turkish Airlines
26 Dec - 31 Jan	Transavia France
22 Dec - 29 Dec	Turkish Airlines
23 Dec - 14 Jan	Turkish Airlines
22 Dec - 14 Jan	Turkish Airlines
21 Dec - 14 Jan	Turkish Airlines
29 Dec - 12 Jan	Turkish Airlines
12 Dec - 19 Dec	SWISS
25 Dec - 11 Jan	Air France
26 Dec - 05 Jan	Ryanair
26 Dec - 11 Jan	Air France
20 Dec - 13 Jan	Turkish Airlines
25 Dec - 10 Jan	Air France

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

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 December from 696€

Return flights