Cheapest return flights from Hong Kong to London in September from $625

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 - 30 Sep Finnair
01 Sep - 07 Sep Finnair
01 Sep - 13 Sep Finnair
01 Sep - 14 Sep Finnair
23 Sep - 21 Oct Finnair
21 Sep - 28 Sep Finnair
22 Sep - 02 Oct Finnair
11 Sep - 23 Sep Finnair
30 Sep - 12 Oct Finnair
30 Sep - 13 Oct Finnair
10 Sep - 19 Sep Finnair
09 Sep - 24 Sep Finnair
15 Sep - 30 Sep Finnair
03 Sep - 07 Sep Finnair
25 Sep - 12 Oct Finnair
20 Sep - 01 Oct Finnair
27 Sep - 02 Oct Finnair
20 Sep - 02 Oct Finnair
25 Sep - 14 Oct Finnair
01 Sep - 12 Oct Finnair

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

Skyscanner

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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