AirHint found the following cheapest return flights from New York (LGA) to Lisbon (LIS) in October 2025 (see full year).
Return flights
| 30 Oct - 18 Nov | United | ||
| 29 Oct - 22 Nov | Air France | ||
| 30 Oct - 03 Nov | Delta | ||
| 30 Oct - 22 Nov | KLM | ||
| 29 Oct - 02 Nov | Delta | ||
| 31 Oct - 03 Nov | KLM | ||
| 31 Oct - 22 Nov | Air France |
Also check the deals for one-way flights from New York to Lisbon in October.
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