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

Return flights

09 Sep - 18 Sep	KLM
08 Sep - 01 Oct	KLM
08 Sep - 24 Sep	KLM
15 Sep - 29 Sep	KLM
08 Sep - 28 Sep	KLM
10 Sep - 17 Sep	KLM
19 Sep - 27 Sep	KLM
08 Sep - 14 Sep	KLM
16 Sep - 23 Sep	Air Dolomiti
09 Sep - 16 Sep	Lufthansa
11 Sep - 18 Sep	KLM
22 Sep - 05 Oct	KLM
15 Sep - 07 Oct	KLM
16 Sep - 01 Oct	KLM
30 Sep - 08 Oct	KLM
30 Sep - 13 Oct	KLM
26 Sep - 13 Oct	KLM
23 Sep - 08 Oct	KLM
24 Sep - 14 Oct	KLM
27 Sep - 13 Oct	KLM

Also check the deals for one-way flights from London 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 London to Osaka in September from $1023

Return flights