AirHint found the following cheapest one-way flights from Warsaw (WMI) to Barcelona (BCN) in September 2026 (see full year).
One-Way flights
| 23 Sep | Ryanair | direct | |
| 08 Sep | Ryanair | ||
| 15 Sep | Ryanair | ||
| 01 Sep | Ryanair | ||
| 21 Sep | Ryanair | ||
| 05 Sep | Ryanair | ||
| 14 Sep | Ryanair | ||
| 17 Sep | Ryanair | ||
| 22 Sep | Ryanair | ||
| 28 Sep | Wizz Air | direct |
Also check the deals for return flights from Warsaw to Barcelona in September.
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