AirHint found the following cheapest return flights from Bucharest (OTP) to Singapore (SIN) in December 2025 (see full year).

Return flights

27 Dec - 17 Jan	Air France
25 Dec - 10 Jan	Turkish Airlines
25 Dec - 09 Jan	Air France
29 Dec - 08 Jan	Turkish Airlines
22 Dec - 09 Jan	Turkish Airlines
26 Dec - 10 Jan	Turkish Airlines
20 Dec - 10 Jan	Turkish Airlines
21 Dec - 10 Jan	Turkish Airlines
21 Dec - 04 Jan	Turkish Airlines
29 Dec - 05 Jan	Turkish Airlines

Also check the deals for one-way flights from Bucharest to Singapore 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 Bucharest to Singapore in December from $992

Return flights