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

Return flights

04 Aug - 28 Aug	Finnair
04 Aug - 21 Aug	Finnair
06 Aug - 20 Aug	Finnair
02 Aug - 30 Aug	Finnair
09 Aug - 01 Sep	Finnair
02 Aug - 21 Aug	Finnair
09 Aug - 21 Aug	Finnair
02 Aug - 29 Aug	Finnair
07 Aug - 28 Aug	Finnair
09 Aug - 23 Aug	Finnair
01 Aug - 01 Sep	Finnair
04 Aug - 19 Aug	Finnair
19 Aug - 10 Sep	Finnair
13 Aug - 11 Sep	Finnair
25 Aug - 12 Sep	Finnair
21 Aug - 05 Sep	Finnair
24 Aug - 04 Sep	Finnair
31 Aug - 11 Sep	Finnair
22 Aug - 05 Sep	China Eastern
24 Aug - 01 Sep	Finnair

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

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 August from 590€

Return flights