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

Return flights

06 May - 13 May	Air Canada
20 May - 27 May	Air Canada
15 May - 22 May	Lufthansa
20 May - 28 May	Air Canada
07 May - 11 May	Air Canada
07 May - 14 May	Air Canada
17 May - 24 May	Lufthansa
18 May - 25 May	Air Canada
02 May - 09 May	Lufthansa
27 May - 03 Jun	Air Canada
28 May - 04 Jun	Air Canada
21 May - 28 May	Air Canada
21 May - 01 Jun	Spirit Airlines
28 May - 08 Jun	Air Transat
26 May - 09 Jun	Spirit Airlines
28 May - 03 Jun	Delta
28 May - 07 Jun	Air Transat
20 May - 09 Jun	Lufthansa
22 May - 03 Jun	United
23 May - 03 Jun	Air Canada

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 371€

Return flights