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

Return flights

15 Sep - 24 Sep	Ryanair
01 Sep - 19 Sep	Ryanair
15 Sep - 15 Oct	Ryanair
01 Sep - 16 Sep	Ryanair
08 Sep - 23 Sep	Ryanair
09 Sep - 23 Sep	Ryanair
08 Sep - 15 Sep	Ryanair
19 Sep - 03 Oct	Ryanair
19 Sep - 05 Oct	Ryanair
23 Sep - 11 Oct	Ryanair
15 Sep - 28 Sep	Ryanair
08 Sep - 22 Sep	Ryanair
11 Sep - 18 Sep	Ryanair
24 Sep - 11 Oct	Ryanair
13 Sep - 23 Sep	Ryanair
28 Sep - 15 Oct	Ryanair
16 Sep - 16 Oct	Ryanair
20 Sep - 06 Oct	Ryanair
28 Sep - 13 Oct	Ryanair
21 Sep - 06 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 654€

Return flights