AirHint found the following cheapest one-way flights from Newark (EWR) to Barcelona (BCN) in September 2026 (see full year).
One-Way flights
| 27 Sep | TAP | ||
| 21 Sep | TAP | ||
| 14 Sep | Icelandair | ||
| 20 Sep | SWISS | ||
| 30 Sep | SWISS | ||
| 23 Sep | SWISS | ||
| 03 Sep | Icelandair | ||
| 11 Sep | Icelandair | ||
| 01 Sep | Icelandair | ||
| 15 Sep | Aer Lingus |
Also check the deals for return flights from Newark to Barcelona in September.
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