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

Return flights

22 Jan - 28 Jan	Iberia Express
10 Jan - 21 Jan	Wizz Air Malta
22 Jan - 26 Jan	Iberia Express
20 Jan - 26 Jan	Iberia
20 Jan - 27 Jan	Iberia
26 Jan - 04 Feb	Scandinavian Airlines
20 Jan - 29 Jan	Iberia
27 Jan - 10 Feb	Iberia
27 Jan - 03 Feb	Iberia	direct
19 Jan - 26 Jan	British Airways
22 Jan - 29 Jan	Iberia
28 Jan - 03 Feb	Iberia
22 Jan - 05 Feb	British Airways
22 Jan - 02 Feb	British Airways
09 Jan - 24 Jan	Wizz Air Malta
10 Jan - 20 Jan	Wizz Air Malta
30 Jan - 06 Feb	Iberia Express
27 Jan - 02 Feb	British Airways
30 Jan - 07 Feb	Delta
31 Jan - 14 Feb	British Airways

Also check the deals for one-way flights from Madrid to San Juan 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 Madrid to San Juan in January from 501€

Return flights