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

Return flights

12 May - 19 May	Air Europa
10 May - 21 May	Air Europa
05 May - 12 May	Scandinavian Airlines
17 May - 21 May	Air Europa
12 May - 17 May	Air Europa
08 May - 16 May	Scandinavian Airlines
10 May - 23 May	Scandinavian Airlines
10 May - 17 May	Air Europa
07 May - 14 May	Air Europa
07 May - 17 May	Air Europa
26 May - 03 Jun	Air Canada
30 May - 06 Jun	Air Canada
21 May - 01 Jun	TAP
26 May - 02 Jun	Air Canada
20 May - 02 Jun	Iberia
15 May - 04 Jun	Iberia
26 May - 09 Jun	Scandinavian Airlines
21 May - 02 Jun	Iberia
08 May - 12 Jun	SWISS
25 May - 03 Jun	United

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 $455

Return flights