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

Return flights

23 Oct - 26 Oct	Scandinavian Airlines
15 Oct - 19 Oct	Delta
09 Oct - 15 Oct	Delta
08 Oct - 13 Oct	Delta
08 Oct - 15 Oct	Delta
08 Oct - 14 Oct	Delta
14 Oct - 19 Oct	Delta
15 Oct - 20 Oct	Delta
09 Oct - 23 Oct	Delta
02 Oct - 06 Oct	Delta
01 Oct - 17 Nov	Delta
01 Oct - 18 Nov	Delta
15 Oct - 04 Nov	SWISS
29 Oct - 09 Nov	Scandinavian Airlines
22 Oct - 04 Nov	SWISS
28 Oct - 04 Nov	SWISS
28 Oct - 13 Nov	SWISS
01 Oct - 06 Nov	KLM
23 Oct - 02 Nov	Air Europa
31 Oct - 08 Nov	Delta

Also check the deals for one-way flights from Lisbon to New York 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 Lisbon to New York in October from $423

Return flights