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

One-Way flights

18 Aug	China Eastern
16 Aug	China Eastern
11 Aug	T'way Air
13 Aug	China Eastern
06 Aug	China Eastern
07 Aug	China Eastern
26 Aug	China Southern
09 Aug	China Eastern
31 Aug	HK Express
14 Aug	China Eastern

Also check the deals for return flights from Hong Kong to Barcelona 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 Barcelona in August from $355

One-Way flights