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

Return flights

09 Oct - 19 Oct	Air Canada
09 Oct - 16 Oct	Air Canada
04 Oct - 16 Oct	Air Canada
02 Oct - 07 Oct	Air Canada
09 Oct - 15 Oct	Air Canada
08 Oct - 14 Oct	Air Canada
09 Oct - 13 Oct	Air Canada
13 Oct - 19 Oct	Air Canada
03 Oct - 06 Oct	Air Canada
21 Oct - 04 Nov	Air Canada
21 Oct - 29 Oct	Air Canada
26 Oct - 08 Nov	United
27 Oct - 04 Nov	Air Canada
22 Oct - 01 Nov	Air Canada
29 Oct - 02 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 $412

Return flights