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

Return flights

15 Sep - 22 Sep	Ryanair
11 Sep - 22 Sep	Ryanair
18 Sep - 23 Sep	Ryanair
25 Sep - 06 Oct	Ryanair
16 Sep - 23 Sep	Ryanair
10 Sep - 16 Sep	Ryanair
19 Sep - 23 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
10 Sep - 23 Sep	Pegasus Airlines
06 Sep - 17 Sep	Ryanair
15 Sep - 21 Sep	Ryanair
16 Sep - 02 Oct	Ryanair
22 Sep - 20 Oct	Ryanair
24 Sep - 14 Oct	Ryanair
20 Sep - 22 Oct	Ryanair
21 Sep - 22 Oct	Ryanair
25 Sep - 25 Oct	Ryanair
17 Sep - 02 Oct	Ryanair
24 Sep - 02 Oct	Ryanair
26 Sep - 05 Oct	Pegasus Airlines

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 580€

Return flights