AirHint found the following cheapest return flights from Rennes (RNS) to Barcelona (BCN) in October 2025 (see full year).

Return flights

30 Oct - 06 Nov	easyJet	direct
30 Oct - 13 Nov	easyJet	direct
30 Oct - 09 Nov	easyJet	direct
30 Oct - 16 Nov	easyJet	direct
31 Oct - 03 Nov	easyJet
31 Oct - 04 Nov	easyJet
29 Oct - 30 Oct	easyJet
02 Oct - 05 Oct	Volotea
05 Oct - 10 Oct	easyJet
11 Oct - 13 Oct	easyJet
26 Oct - 06 Nov	easyJet	direct
26 Oct - 13 Nov	easyJet	direct
26 Oct - 09 Nov	easyJet	direct
26 Oct - 16 Nov	easyJet	direct
27 Oct - 30 Oct	easyJet
28 Oct - 31 Oct	easyJet
24 Oct - 26 Oct	easyJet
26 Oct - 30 Oct	easyJet	direct
07 Oct - 11 Oct	KLM
19 Oct - 22 Oct	easyJet

Also check the deals for one-way flights from Rennes to Barcelona in October.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Rennes to Barcelona in October from $68

Return flights