AirHint found the following cheapest return flights from Charlotte (CLT) to Madrid (MAD) in December 2025 (see full year).

Return flights

07 Dec - 24 Dec	Iberia	direct
02 Dec - 09 Dec	American Airlines
08 Dec - 16 Dec	British Airways
09 Dec - 16 Dec	Iberia
12 Dec - 23 Dec	Iberia
08 Dec - 16 Dec	Iberia	direct
30 Dec - 24 Jan	Iberia
01 Dec - 08 Dec	Iberia	direct
05 Dec - 12 Dec	Iberia	direct
07 Dec - 14 Dec	Iberia	direct
01 Dec - 07 Dec	American Airlines	direct
12 Dec - 10 Jan	Iberia
30 Dec - 24 Jan	Finnair	direct
16 Dec - 10 Jan	Iberia
24 Dec - 01 Jan	British Airways
31 Dec - 07 Jan	Iberia
27 Dec - 07 Jan	Iberia
10 Dec - 03 Jan	Spirit Airlines
16 Dec - 02 Jan	Iberia
14 Dec - 03 Jan	Spirit Airlines

Also check the deals for one-way flights from Charlotte to Madrid in December.

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 Charlotte to Madrid in December from $497

Return flights