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

Return flights

30 Oct - 15 Nov	Finnair
29 Oct - 09 Nov	Finnair
22 Oct - 03 Nov	Finnair
18 Oct - 27 Oct	Finnair
23 Oct - 03 Nov	Finnair
27 Oct - 03 Nov	Finnair
30 Oct - 08 Nov	Finnair
22 Oct - 30 Oct	Finnair
22 Oct - 02 Nov	Finnair
26 Oct - 02 Nov	Finnair
13 Oct - 27 Oct	Finnair
25 Oct - 03 Nov	Finnair
18 Oct - 28 Oct	Finnair
17 Oct - 27 Oct	Finnair
22 Oct - 01 Nov	Finnair
16 Oct - 26 Oct	Finnair
14 Oct - 28 Oct	Finnair
20 Oct - 31 Oct	Finnair
18 Oct - 31 Oct	Finnair
19 Oct - 31 Oct	Finnair

Also check the deals for one-way flights from Hong Kong to Keflavik 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.

Book a cheap hotel in Keflavik

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Cheapest return flights from Hong Kong to Keflavik in October from $634

Return flights