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

Return flights

16 May - 21 May	Icelandair
05 May - 19 May	British Airways
06 May - 20 May	British Airways
03 May - 23 May	British Airways
07 May - 10 May	Aer Lingus
08 May - 10 May	Aer Lingus
09 May - 24 May	Aer Lingus
06 May - 20 May	TAP	direct
30 May - 06 Jun	Air Canada
10 May - 14 May	Iberia
19 May - 02 Jun	British Airways
06 May - 30 May	Aer Lingus
14 May - 06 Jun	SWISS
26 May - 02 Jun	Iberia
28 May - 04 Jun	British Airways
29 May - 05 Jun	British Airways
27 May - 03 Jun	Iberia
22 May - 05 Jun	Air France
18 May - 13 Jun	SWISS
21 May - 13 Jun	Air France

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 373€

Return flights