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

Return flights

05 Sep - 22 Sep	Zipair
15 Sep - 22 Sep	Austrian Airlines
15 Sep - 15 Oct	Austrian Airlines
25 Sep - 02 Oct	Austrian Airlines
30 Sep - 05 Oct	KLM
09 Sep - 16 Sep	Qatar Airways
20 Sep - 29 Sep	Austrian Airlines
20 Sep - 23 Sep	Austrian Airlines
08 Sep - 15 Sep	Qatar Airways
15 Sep - 17 Sep	Qatar Airways
06 Sep - 13 Sep	Qatar Airways
19 Sep - 29 Sep	Qatar Airways
19 Sep - 25 Sep	LOT

Also check the deals for one-way flights from Tokyo to Bucharest 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.

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Cheapest return flights from Tokyo to Bucharest in September from $1040

Return flights