AirHint found the following cheapest one-way flights from Newark (EWR) to Barcelona (BCN) in September 2026 (see full year).
One-Way flights
| 20 Sep | SWISS | ||
| 27 Sep | SWISS | ||
| 30 Sep | Lufthansa | ||
| 24 Sep | TAP | ||
| 21 Sep | Lufthansa | direct | |
| 05 Sep | Aer Lingus | ||
| 27 Sep | United | direct | |
| 20 Sep | United | direct | |
| 24 Sep | United | direct | |
| 30 Sep | United | direct |
Also check the deals for return flights from Newark to Barcelona in September.
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