AirHint found the following cheapest return flights from Hong Kong (HKG) to London (LHR) in September 2026 (see full year).

Return flights

13 Sep - 20 Sep	Etihad Airways
15 Sep - 24 Sep	SWISS
16 Sep - 23 Sep	SWISS
14 Sep - 24 Sep	SWISS
08 Sep - 15 Sep	SWISS
06 Sep - 20 Sep	SWISS
10 Sep - 19 Sep	Etihad Airways
12 Sep - 26 Sep	Etihad Airways
11 Sep - 13 Sep	Etihad Airways
10 Sep - 28 Sep	Singapore Airlines
30 Sep - 18 Oct	Singapore Airlines
24 Sep - 03 Oct	Royal Brunei
24 Sep - 12 Oct	Singapore Airlines
23 Sep - 24 Oct	Finnair
24 Sep - 06 Oct	Finnair
25 Sep - 11 Oct	Singapore Airlines
04 Sep - 08 Oct	Finnair
30 Sep - 06 Oct	Air India
30 Sep - 07 Oct	Air India
25 Sep - 24 Oct	Singapore Airlines

Also check the deals for one-way flights from Hong Kong 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 return flights from Hong Kong to London in September from 531€

Return flights