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

Return flights

15 Apr - 29 Apr	Iberia	direct
14 Apr - 21 Apr	British Airways	direct
13 Apr - 20 Apr	British Airways	direct
06 Apr - 13 Apr	Iberia
16 Apr - 19 Apr	Iberia	direct
22 Apr - 01 May	British Airways	direct
27 Apr - 09 May	Iberia	direct
30 Apr - 10 May	Iberia
27 Apr - 10 May	Iberia	direct
06 Apr - 11 Apr	Iberia
10 Apr - 17 Apr	British Airways	direct
25 Apr - 09 May	Iberia
25 Apr - 02 May	Iberia	direct
03 Apr - 12 Apr	Iberia
03 Apr - 10 Apr	Iberia
03 Apr - 11 Apr	Iberia
25 Apr - 09 May	British Airways	direct

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

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 April from $688

Return flights