AirHint found the following cheapest return flights from Hong Kong (HKG) to Barcelona (BCN) in December 2025 (see full year).

Return flights

07 Dec - 14 Dec	Air China
03 Dec - 11 Dec	Air China
08 Dec - 14 Dec	Air China
08 Dec - 13 Dec	Air China
07 Dec - 13 Dec	Air China
24 Dec - 28 Jan	KLM
29 Dec - 19 Jan	Air France
05 Dec - 12 Dec	Air China
05 Dec - 13 Dec	Air China
29 Dec - 15 Jan	Air France
25 Dec - 08 Jan	Air France
30 Dec - 15 Jan	Finnair
11 Dec - 22 Dec	Etihad Airways
10 Dec - 17 Dec	Air China
10 Dec - 15 Dec	Air China
31 Dec - 07 Jan	SWISS
26 Dec - 09 Jan	Air France
01 Dec - 05 Jan	Finnair
29 Dec - 14 Jan	Finnair
31 Dec - 15 Jan	Finnair

Also check the deals for one-way flights from Hong Kong to Barcelona in December.

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Cheapest return flights from Hong Kong to Barcelona in December from 398€

Return flights