AirHint found the following cheapest return flights from Newark (EWR) to Barcelona (BCN) in September 2026 (see full year).
Return flights
| 21 Sep - 30 Sep | Air Canada | ||
| 23 Sep - 30 Sep | Aer Lingus | ||
| 04 Sep - 19 Sep | Scandinavian Airlines | ||
| 21 Sep - 05 Oct | Iberia | ||
| 19 Sep - 25 Sep | Iberia | ||
| 17 Sep - 21 Sep | Iberia | ||
| 08 Sep - 20 Sep | TAP |
Also check the deals for one-way flights from Newark to Barcelona in September.
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