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

Return flights

11 Sep - 22 Sep	Pegasus Airlines
17 Sep - 24 Sep	Ryanair
08 Sep - 22 Sep	Ryanair
07 Sep - 17 Sep	ITA Airways
16 Sep - 25 Sep	Ryanair
07 Sep - 23 Sep	ITA Airways
11 Sep - 19 Sep	Pegasus Airlines
16 Sep - 05 Oct	Air France
08 Sep - 30 Oct	Ryanair
08 Sep - 15 Sep	Wizz Air
23 Sep - 30 Sep	Ryanair
25 Sep - 26 Sep	Air Serbia
22 Sep - 12 Oct	KLM
24 Sep - 03 Oct	KLM
18 Sep - 18 Oct	Lufthansa
19 Sep - 04 Oct	British Airways
24 Sep - 15 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 $990

Return flights