Cheapest return flights from Hong Kong to London in September from $646

Best time to book flights for Hong Kong (HKG) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Hong Kong (HKG) to London (LHR) in September 2025 (see full year).

Return flights

22 Sep - 29 Sep Finnair
17 Sep - 24 Sep Singapore Airlines
20 Sep - 23 Sep Singapore Airlines
16 Sep - 24 Sep Singapore Airlines
16 Sep - 25 Sep Singapore Airlines
16 Sep - 23 Sep Singapore Airlines
17 Sep - 21 Sep Singapore Airlines
16 Sep - 21 Sep Singapore Airlines
22 Sep - 20 Oct Finnair
11 Sep - 21 Sep Singapore Airlines
08 Sep - 25 Sep Singapore Airlines
21 Sep - 19 Oct Finnair
18 Sep - 06 Oct Turkish Airlines
25 Sep - 09 Oct Turkish Airlines
27 Sep - 05 Oct Singapore Airlines
26 Sep - 06 Oct Singapore Airlines
25 Sep - 05 Oct Turkish Airlines
17 Sep - 02 Oct British Airways direct
27 Sep - 06 Oct Singapore Airlines
21 Sep - 08 Oct Singapore Airlines

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

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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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