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

Return flights

11 Sep - 22 Sep	Turkish Airlines
16 Sep - 16 Oct	KLM
23 Sep - 15 Oct	KLM
18 Sep - 24 Sep	Ryanair
02 Sep - 25 Sep	KLM
04 Sep - 09 Sep	Ryanair
08 Sep - 22 Sep	KLM
25 Sep - 02 Oct	Lufthansa
11 Sep - 16 Sep	KLM
05 Sep - 19 Sep	KLM
08 Sep - 21 Sep	KLM
07 Sep - 25 Sep	Etihad Airways
19 Sep - 24 Sep	Qatar Airways
15 Sep - 15 Oct	LOT
24 Sep - 08 Oct	Turkish Airlines
24 Sep - 10 Oct	Turkish Airlines

Also check the deals for one-way flights from Sofia to Tokyo 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 Sofia to Tokyo in September from $945

Return flights