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

Return flights

21 Sep - 24 Sep	Vietnam Airlines
23 Sep - 30 Sep	T'way Air
25 Sep - 02 Oct	Vietnam Airlines
23 Sep - 27 Sep	T'way Air
21 Sep - 07 Oct	Vietnam Airlines
27 Sep - 12 Oct	Thai AirAsia X
24 Sep - 28 Sep	T'way Air
20 Sep - 24 Sep	Vietnam Airlines
24 Sep - 01 Oct	Singapore Airlines
28 Sep - 06 Oct	Air France
28 Sep - 02 Oct	Vietnam Airlines
28 Sep - 04 Oct	Vietnam Airlines
21 Sep - 03 Oct	Vietnam Airlines
28 Sep - 01 Oct	Vietnam Airlines
30 Sep - 14 Oct	KLM
21 Sep - 26 Sep	KLM
28 Sep - 29 Sep	Air Canada

Also check the deals for one-way flights from Osaka to Frankfurt 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 Osaka to Frankfurt in September from $1026

Return flights