AirHint found the following cheapest return flights from Cardiff (CWL) to Edinburgh (EDI) in September 2026 (see full year).
Return flights
| 18 Sep - 21 Sep | Ryanair | ||
| 11 Sep - 13 Sep | Ryanair | ||
| 01 Sep - 04 Sep | Ryanair | ||
| 24 Sep - 26 Sep | Aer Lingus |
Also check the deals for one-way flights from Cardiff to Edinburgh in September.
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