AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Barcelona (BCN) in October 2025 (see full year).
Return flights
| 24 Oct - 15 Nov | Air France | ||
| 20 Oct - 27 Oct | KLM | ||
| 30 Oct - 09 Nov | British Airways | ||
| 29 Oct - 01 Nov | Frontier Airlines | ||
| 28 Oct - 02 Nov | Delta |
Also check the deals for one-way flights from Raleigh-durham to Barcelona in October.
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