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

One-Way flights

25 Aug	Hong Kong Airlines
18 Aug	China Eastern
28 Aug	Hong Kong Airlines
16 Aug	China Eastern
26 Aug	China Southern
12 Aug	China Eastern
24 Aug	HK Express
27 Aug	China Southern
31 Aug	HK Express
13 Aug	China Eastern

Also check the deals for return 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 one-way flights from Hong Kong to Lisbon in August from $404

One-Way flights