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

Return flights

29 Oct - 05 Nov	Air Canada
13 Oct - 20 Oct	Air Canada
14 Oct - 21 Oct	Air Canada
07 Oct - 14 Oct	Air Canada
27 Oct - 05 Nov	Delta
21 Oct - 28 Oct	Air Canada
27 Oct - 03 Nov	Air Canada
06 Oct - 13 Oct	Air Canada
31 Oct - 07 Nov	Air Canada
08 Oct - 15 Oct	Air Canada
22 Oct - 29 Oct	United
23 Oct - 30 Oct	Air Canada
23 Oct - 29 Oct	United
28 Oct - 04 Nov	Air Canada
16 Oct - 23 Oct	Air Canada
27 Oct - 02 Nov	Delta
21 Oct - 02 Nov	Delta
30 Oct - 06 Nov	Air Canada
26 Oct - 02 Nov	Air Canada
25 Oct - 01 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 338€

Return flights