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

Return flights

10 May - 25 May	Air Canada
13 May - 26 May	Air Canada
07 May - 11 May	Lufthansa
07 May - 10 May	Air Canada
20 May - 27 May	Air Canada
22 May - 29 May	Air Canada
22 May - 27 May	Lufthansa
20 May - 01 Jun	Air Canada
03 May - 10 May	Air Canada
15 May - 24 May	Air Canada
20 May - 29 May	Air Canada
27 May - 03 Jun	British Airways
28 May - 06 Jun	British Airways
29 May - 06 Jun	British Airways
17 May - 01 Jun	Air Canada
30 May - 08 Jun	Spirit Airlines
25 May - 01 Jun	Air Transat
28 May - 30 Jun	Air Canada
30 May - 30 Jun	Air Canada
29 May - 05 Jun	Air Transat

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 $450

Return flights