AirHint found the following cheapest return flights from Hong Kong (HKG) to Barcelona (BCN) in May 2026 (see full year).

Return flights

11 May - 11 Jun	Finnair
10 May - 20 May	Finnair
18 May - 25 May	Finnair
24 May - 06 Jun	Air France
05 May - 26 May	Finnair
07 May - 21 May	Finnair
23 May - 01 Jun	Finnair
18 May - 29 May	Finnair
21 May - 01 Jun	Finnair
01 May - 07 May	Finnair
07 May - 11 May	Finnair
04 May - 18 May	Finnair
08 May - 20 May	Etihad Airways
09 May - 24 May	Etihad Airways
30 May - 07 Jun	Emirates
23 May - 20 Jun	Emirates
11 May - 11 Jun	Cathay Pacific	direct
23 May - 01 Jun	Cathay Pacific	direct

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

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 Barcelona in May from $536

Return flights