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

Return flights

10 May - 26 May	Iberia	direct
21 May - 04 Jun	British Airways
21 May - 04 Jun	Iberia	direct
07 May - 18 May	Iberia
20 May - 30 May	Iberia
27 May - 03 Jun	Avianca
24 May - 11 Jun	Iberia	direct
13 May - 29 May	Avianca
15 May - 30 May	Iberia
17 May - 27 May	Condor
04 May - 08 May	Condor
30 May - 13 Jun	Avianca
23 May - 31 May	Iberia
18 May - 01 Jun	Condor
03 May - 29 May	Iberia	direct
20 May - 30 May	Aer Lingus	direct
28 May - 28 Jun	Condor
29 May - 13 Jun	Condor
29 May - 13 Jun	Aer Lingus	direct
28 May - 28 Jun	Iberia	direct

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 595€

Return flights