AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Madrid (MAD) in October 2025 (see full year).

Return flights

14 Oct - 21 Oct	Air Canada
06 Oct - 22 Oct	Iberia
13 Oct - 20 Oct	Air Canada
23 Oct - 30 Oct	Iberia
07 Oct - 14 Oct	United
20 Oct - 27 Oct	United
03 Oct - 10 Oct	United
17 Oct - 24 Oct	United
01 Oct - 08 Oct	Iberia
03 Oct - 14 Nov	British Airways
20 Oct - 03 Nov	Spirit Airlines
09 Oct - 16 Oct	Iberia
29 Oct - 05 Nov	Iberia
26 Oct - 02 Nov	United

Also check the deals for one-way flights from Raleigh-durham to Madrid 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 Madrid in October from 359€

Return flights