AirHint found the following cheapest return flights from New York (JFK) to Lisbon (LIS) in May 2026 (see full year).

Return flights

16 May - 31 May	Icelandair
12 May - 17 May	Air Europa
23 May - 31 May	Air Europa
22 May - 31 May	Icelandair
08 May - 15 May	Iberia For Level
23 May - 27 May	Air Europa
14 May - 25 May	Air Europa
12 May - 17 May	TAP	direct
02 May - 14 May	TAP	direct
03 May - 10 May	TAP	direct
28 May - 04 Jun	British Airways
20 May - 03 Jun	Iberia
23 May - 06 Jun	British Airways
28 May - 04 Jun	TAP	direct

Also check the deals for one-way flights from New York 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 New York to Lisbon in May from $437

Return flights