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

Return flights

22 Oct - 28 Oct	Pegasus Airlines
04 Oct - 28 Oct	Wizz Air Malta
20 Oct - 26 Oct	Ryanair
04 Oct - 04 Nov	Wizz Air Malta
02 Oct - 16 Nov	Wizz Air Malta
16 Oct - 01 Nov	Wizz Air Malta
01 Oct - 08 Oct	Wizz Air Malta
27 Oct - 06 Nov	Norwegian
01 Oct - 15 Nov	Pegasus Airlines
16 Oct - 20 Oct	Wizz Air Malta
14 Oct - 28 Nov	Wizz Air Malta
01 Oct - 01 Nov	TAROM
05 Oct - 10 Oct	Turkish Airlines
27 Oct - 05 Nov	British Airways
31 Oct - 11 Nov	Qatar Airways
15 Oct - 01 Nov	flydubai
20 Oct - 29 Oct	SWISS
27 Oct - 31 Oct	Air France
07 Oct - 21 Oct	SWISS
07 Oct - 23 Oct	SWISS

Also check the deals for one-way flights from Bucharest 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 Bucharest to Bangkok in October from $540

Return flights