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

Return flights

19 May - 31 May	Finnair
06 May - 16 May	Finnair
19 May - 03 Jun	Finnair
26 May - 11 Jun	Finnair
20 May - 04 Jun	Finnair
17 May - 31 May	Finnair
18 May - 29 May	Finnair
14 May - 21 May	Finnair
11 May - 17 May	Finnair
11 May - 15 May	Finnair
17 May - 29 May	Finnair
21 May - 01 Jun	Finnair
01 May - 07 May	Finnair
21 May - 30 May	Finnair
29 May - 13 Jun	Etihad Airways

Also check the deals for one-way flights from Hong Kong to Keflavik 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 Keflavik in May from $656

Return flights