AirHint found the following cheapest return flights from Hong Kong (HKG) to Lisbon (LIS) in August 2025 (see full year).

Return flights

03 Aug - 10 Aug	KLM
02 Aug - 10 Aug	KLM
20 Aug - 27 Aug	KLM
18 Aug - 27 Aug	Finnair
12 Aug - 19 Aug	Finnair
13 Aug - 27 Aug	Finnair
13 Aug - 20 Aug	Finnair
26 Aug - 02 Sep	SWISS
04 Aug - 18 Aug	Air China
11 Aug - 18 Aug	Finnair
06 Aug - 12 Aug	Finnair
27 Aug - 03 Sep	SWISS
27 Aug - 04 Sep	SWISS
27 Aug - 12 Sep	Finnair
27 Aug - 06 Sep	Finnair
25 Aug - 01 Sep	Finnair
31 Aug - 07 Sep	Finnair
28 Aug - 04 Sep	SWISS
28 Aug - 12 Sep	Air France
28 Aug - 06 Sep	Air France

Also check the deals for one-way flights from Hong Kong to Lisbon 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 Lisbon in August from 626€

Return flights