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

Return flights

23 Oct - 02 Nov	Vueling Airlines
08 Oct - 22 Oct	Delta
07 Oct - 14 Oct	Delta
04 Oct - 10 Nov	Delta
08 Oct - 12 Oct	Delta
08 Oct - 21 Oct	Delta
30 Oct - 16 Nov	Air France
14 Oct - 20 Oct	Air Europa
07 Oct - 20 Oct	SWISS
15 Oct - 28 Oct	SWISS
06 Oct - 13 Oct	SWISS
06 Oct - 15 Oct	SWISS
06 Oct - 12 Oct	SWISS
29 Oct - 06 Nov	SWISS
30 Oct - 11 Nov	SWISS
30 Oct - 08 Nov	SWISS
30 Oct - 09 Nov	SWISS
30 Oct - 10 Nov	SWISS
22 Oct - 07 Nov	Lufthansa
28 Oct - 04 Nov	SWISS

Also check the deals for one-way flights from Lisbon to Newark 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 Newark in October from $444

Return flights