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

One-Way flights

02 Oct	Air Canada
30 Oct	Air Canada
15 Oct	Porter Airlines (Canada) Ltd
20 Oct	Air Canada
21 Oct	Air Canada
29 Oct	United
24 Oct	Porter Airlines (Canada) Ltd
31 Oct	Porter Airlines (Canada) Ltd
23 Oct	Lufthansa
13 Oct	Lufthansa

Also check the deals for return 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 one-way flights from New York to Lisbon in October from $340

One-Way flights