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

Return flights

11 May - 18 May	TAP	direct
05 May - 12 May	TAP	direct
12 May - 19 May	Air Canada
07 May - 14 May	Air Canada
10 May - 17 May	TAP	direct
12 May - 19 May	TAP	direct
06 May - 13 May	Air Canada
07 May - 13 May	Air Canada
08 May - 15 May	Iberia
09 May - 16 May	Iberia
15 May - 06 Jun	Iberia
16 May - 06 Jun	Iberia
23 May - 13 Jun	Air Canada
25 May - 20 Jun	Air Canada
19 May - 13 Jun	Brussels Airlines
18 May - 13 Jun	Brussels Airlines
20 May - 13 Jun	Brussels Airlines
14 May - 06 Jun	SWISS
21 May - 13 Jun	SWISS
22 May - 13 Jun	SWISS

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 345€

Return flights