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

Return flights

01 May - 15 May	Iberia
12 May - 19 May	TAP	direct
14 May - 20 May	Air Europa
07 May - 13 May	Aer Lingus
03 May - 23 May	Iberia
18 May - 23 May	Scandinavian Airlines
21 May - 28 May	Aer Lingus
21 May - 31 May	Aer Lingus
21 May - 13 Jun	Aer Lingus
21 May - 26 May	Iberia
08 May - 12 Jun	American Airlines
23 May - 30 May	Aer Lingus
15 May - 06 Jun	Aer Lingus
14 May - 06 Jun	Air Europa
16 May - 06 Jun	Air Canada
22 May - 13 Jun	Aer Lingus
20 May - 13 Jun	Iberia
31 May - 13 Jun	Air Europa
31 May - 08 Jun	Azores Airlines
13 May - 06 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