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

Return flights

19 Jan - 29 Jan	Iberia	direct
20 Jan - 28 Jan	British Airways	direct
19 Jan - 28 Jan	Iberia	direct
21 Jan - 27 Jan	Iberia	direct
20 Jan - 26 Jan	British Airways	direct
20 Jan - 27 Jan	Iberia	direct
21 Jan - 26 Jan	British Airways	direct
21 Jan - 28 Jan	Iberia	direct
20 Jan - 29 Jan	Iberia	direct
27 Jan - 03 Feb	Iberia
27 Jan - 09 Feb	Iberia
20 Jan - 03 Feb	Iberia
27 Jan - 10 Feb	Iberia
28 Jan - 04 Feb	Iberia	direct
27 Jan - 02 Feb	Iberia	direct
27 Jan - 02 Feb	Iberia
27 Jan - 03 Feb	Iberia	direct
22 Jan - 28 Jan	Iberia
22 Jan - 03 Feb	Iberia
29 Jan - 02 Feb	Iberia

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 413€

Return flights