AirHint found the following cheapest one-way flights from Osaka (KIX) to London (LHR) in September 2025 (see full year).

One-Way flights

18 Sep	Hainan Airlines
25 Sep	Hainan Airlines
11 Sep	Hainan Airlines
04 Sep	Hainan Airlines
16 Sep	Hainan Airlines
09 Sep	Hainan Airlines
30 Sep	Shenzhen Airlines
22 Sep	Peach
10 Sep	Peach
15 Sep	Peach

Also check the deals for return flights from Osaka to London 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 one-way flights from Osaka to London in September from 206€

One-Way flights