AirHint found the following cheapest return flights from Rennes (RNS) to Brussels (BRU) in October 2025 (see full year).
Return flights
| 31 Oct - 03 Nov | Volotea | ||
| 27 Oct - 03 Nov | Volotea | ||
| 26 Oct - 29 Oct | KLM | ||
| 31 Oct - 02 Nov | Volotea |
Also check the deals for one-way flights from Rennes to Brussels in October.
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