AirHint found the following cheapest return flights from Hong Kong (HKG) to Madrid (MAD) in October 2025 (see full year).

Return flights

14 Oct - 11 Nov	Air China
20 Oct - 13 Nov	Air China
20 Oct - 19 Nov	Air China
29 Oct - 11 Nov	Air China
15 Oct - 05 Nov	Air China
29 Oct - 02 Nov	Air China
24 Oct - 02 Nov	Air China
19 Oct - 02 Nov	Air China
14 Oct - 22 Oct	Air China
12 Oct - 28 Oct	Air China
15 Oct - 28 Oct	Air China
21 Oct - 28 Oct	Air China
23 Oct - 28 Oct	Air China
21 Oct - 29 Oct	Finnair
21 Oct - 08 Nov	Air China
21 Oct - 04 Nov	Air China
15 Oct - 21 Oct	China Eastern
19 Oct - 25 Oct	Air China
16 Oct - 23 Oct	China Eastern
17 Oct - 25 Oct	Air China

Also check the deals for one-way flights from Hong Kong to Madrid in October.

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 Madrid in October from $451

Return flights