AirHint found the following cheapest return flights from San Juan (SJU) to Madrid (MAD) in January 2026 (see full year).

Return flights

20 Jan - 27 Jan	Iberia	direct
27 Jan - 03 Feb	Iberia	direct
21 Jan - 18 Feb	American Airlines
25 Jan - 01 Feb	Iberia	direct
26 Jan - 02 Feb	British Airways
30 Jan - 06 Feb	Iberia
19 Jan - 26 Jan	British Airways
15 Jan - 22 Jan	British Airways
26 Jan - 02 Feb	Iberia	direct
06 Jan - 13 Jan	British Airways
10 Jan - 17 Jan	Finnair
15 Jan - 22 Jan	Iberia	direct
05 Jan - 12 Jan	British Airways
01 Jan - 15 Jan	Finnair
02 Jan - 18 Jan	KLM
06 Jan - 13 Jan	Iberia	direct

Also check the deals for one-way flights from San Juan to Madrid in January.

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 San Juan to Madrid in January from $370

Return flights