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

Return flights

16 Sep - 22 Sep	Ryanair
06 Sep - 16 Sep	Ryanair
11 Sep - 19 Sep	Ryanair
07 Sep - 22 Sep	Ryanair
07 Sep - 17 Sep	Ryanair
03 Sep - 17 Sep	Ryanair
06 Sep - 17 Sep	Ryanair
08 Sep - 17 Sep	Ryanair
08 Sep - 18 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
15 Sep - 02 Oct	Ryanair
22 Sep - 13 Oct	Ryanair
22 Sep - 02 Oct	Ryanair
15 Sep - 03 Oct	Ryanair
20 Sep - 06 Oct	Ryanair
18 Sep - 01 Oct	Ryanair
17 Sep - 01 Oct	Ryanair
01 Sep - 01 Oct	Ryanair
25 Sep - 08 Oct	Ryanair
20 Sep - 05 Oct	Ryanair

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 615€

Return flights