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

Return flights

05 Mar - 12 Mar	Iberia	direct
04 Mar - 12 Mar	Iberia	direct
04 Mar - 11 Mar	Iberia
07 Mar - 17 Mar	Avianca
06 Mar - 17 Mar	Avianca
08 Mar - 17 Mar	Avianca
01 Mar - 14 Mar	Avianca
07 Mar - 16 Mar	Avianca
02 Mar - 16 Mar	Avianca
08 Mar - 12 Mar	Avianca
24 Mar - 08 Apr	United
25 Mar - 08 Apr	Lufthansa
23 Mar - 07 Apr	Iberia	direct
25 Mar - 09 Apr	Avianca
24 Mar - 07 Apr	Iberia
25 Mar - 07 Apr	Avianca
21 Mar - 07 Apr	Iberia	direct
23 Mar - 11 Apr	Iberia
24 Mar - 11 Apr	Iberia
22 Mar - 07 Apr	Iberia	direct

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

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 March from $622

Return flights