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

Return flights

20 May - 31 May	Finnair
04 May - 17 May	Finnair
15 May - 24 May	Finnair
23 May - 03 Jun	Finnair
22 May - 02 Jun	Finnair
03 May - 11 May	Finnair
01 May - 06 May	Finnair
19 May - 05 Jun	Finnair
01 May - 09 May	Finnair

Also check the deals for one-way flights from Hong Kong to Lisbon 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 Lisbon in May from $492

Return flights