AirHint found the following cheapest return flights from Frankfurt (FRA) to Osaka (KIX) in September 2025 (see full year).

Return flights

02 Sep - 16 Sep	Air China
22 Sep - 13 Oct	Air China
15 Sep - 15 Oct	Air China
15 Sep - 13 Oct	Air China
23 Sep - 13 Oct	Air China
06 Sep - 15 Sep	Oman Air
08 Sep - 18 Sep	Oman Air
08 Sep - 15 Sep	Oman Air
08 Sep - 17 Sep	Air China
06 Sep - 16 Sep	Air China
03 Sep - 15 Sep	Air China
11 Sep - 24 Sep	Ryanair
01 Sep - 21 Sep	Oman Air
23 Sep - 10 Oct	Air China
12 Sep - 22 Sep	Oman Air
12 Sep - 15 Oct	Oman Air
23 Sep - 04 Oct	Air China
19 Sep - 10 Oct	Air China
19 Sep - 03 Oct	Air China
08 Sep - 04 Oct	Air China

Also check the deals for one-way flights from Frankfurt to Osaka 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 Frankfurt to Osaka in September from 634€

Return flights