Cheapest return flights from Lisbon to Newark in September from $491

Best time to book flights for Lisbon (LIS) to Newark (EWR) flights at AirHint

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

Return flights

02 Sep - 08 Sep Delta
15 Sep - 22 Sep Delta
16 Sep - 22 Sep Delta
10 Sep - 22 Sep Delta
11 Sep - 22 Sep Delta
11 Sep - 16 Sep Delta
25 Sep - 29 Sep Delta
12 Sep - 18 Sep Delta
12 Sep - 21 Sep Delta
09 Sep - 16 Sep Delta
25 Sep - 05 Oct British Airways
17 Sep - 08 Oct SWISS
29 Sep - 05 Oct SWISS
29 Sep - 06 Oct SWISS
29 Sep - 04 Oct SWISS
17 Sep - 08 Oct Brussels Airlines direct

Also check the deals for one-way flights from Lisbon to Newark in September.

Skyscanner

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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