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

Return flights

21 May - 04 Jun	Avianca
23 May - 06 Jun	Avianca
27 May - 03 Jun	Avianca
21 May - 04 Jun	Iberia	direct
27 May - 03 Jun	Iberia	direct
26 May - 09 Jun	British Airways	direct
27 May - 09 Jun	Iberia	direct
27 May - 10 Jun	Iberia	direct
29 May - 05 Jun	Iberia

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

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 May from 603€

Return flights