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

Return flights

22 Sep - 28 Sep	Pegasus Airlines
06 Sep - 20 Sep	Wizz Air Malta
09 Sep - 16 Sep	Wizz Air Malta
06 Sep - 21 Sep	Wizz Air Malta
09 Sep - 24 Oct	Wizz Air Malta
08 Sep - 27 Sep	Turkish Airlines
11 Sep - 30 Sep	Turkish Airlines
11 Sep - 02 Oct	Turkish Airlines
05 Sep - 21 Sep	Air France
12 Sep - 30 Sep	Air France
12 Sep - 19 Sep	Air France
09 Sep - 27 Sep	KLM
19 Sep - 03 Oct	SWISS

Also check the deals for one-way flights from Bucharest to Singapore in September.

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Bucharest to Singapore in September from 543€

Return flights