AirHint found the following cheapest one-way flights from Newark (EWR) to Lisbon (LIS) in September 2026 (see full year).
One-Way flights
| 30 Sep | TAP | direct | |
| 29 Sep | TAP | direct | |
| 26 Sep | TAP | direct | |
| 07 Sep | Aer Lingus | ||
| 07 Sep | TAP | direct | |
| 19 Sep | Icelandair | ||
| 16 Sep | TAP | direct | |
| 09 Sep | TAP | ||
| 01 Sep | Aer Lingus | ||
| 13 Sep | TAP | direct |
Also check the deals for return flights from Newark to Lisbon in September.
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