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	Spirit Airlines
14 Oct - 21 Oct	jetBlue
07 Oct - 14 Oct	jetBlue
14 Oct - 20 Oct	Air Canada
30 Oct - 06 Nov	United
24 Oct - 31 Oct	United
06 Oct - 13 Oct	United
21 Oct - 28 Oct	United
16 Oct - 23 Oct	United
02 Oct - 09 Oct	United
05 Oct - 12 Oct	Air France
01 Oct - 04 Oct	Frontier Airlines
27 Oct - 03 Nov	United

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Barcelona in October from $450

Return flights