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

Return flights

16 Aug - 26 Aug	Finnair
12 Aug - 25 Aug	Finnair
05 Aug - 28 Aug	Finnair
05 Aug - 02 Sep	Lufthansa
04 Aug - 26 Aug	SWISS
06 Aug - 25 Aug	Finnair
06 Aug - 27 Aug	Finnair
06 Aug - 20 Aug	Finnair
06 Aug - 22 Aug	Finnair
07 Aug - 22 Aug	Air India
03 Aug - 13 Aug	Air India
15 Aug - 30 Sep	Finnair
10 Aug - 21 Sep	Cathay Pacific	direct
05 Aug - 02 Sep	Cathay Pacific	direct
15 Aug - 30 Sep	Cathay Pacific	direct

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 608€

Return flights