AirHint found the following cheapest return flights from New York (LGA) to Lisbon (LIS) in October 2025 (see full year).

Return flights

28 Oct - 05 Nov	Air Canada
27 Oct - 05 Nov	Delta
05 Oct - 21 Oct	Air Canada
19 Oct - 29 Oct	United
17 Oct - 21 Oct	Air Canada
23 Oct - 07 Nov	Delta
28 Oct - 06 Nov	Delta
05 Oct - 16 Oct	Air Canada
27 Oct - 02 Nov	Delta
22 Oct - 31 Oct	Air Canada
30 Oct - 03 Nov	Air Canada
13 Oct - 20 Oct	Air Canada
17 Oct - 22 Oct	Air Canada
05 Oct - 15 Oct	Lufthansa
23 Oct - 27 Oct	Air Canada
19 Oct - 08 Nov	Air Canada
09 Oct - 21 Oct	Air Canada
24 Oct - 15 Nov	Air Canada
27 Oct - 22 Nov	Air Canada
14 Oct - 08 Nov	Air Canada

Also check the deals for one-way flights from New York to Lisbon in October.

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 October from $376

Return flights