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

Return flights

05 May - 19 May	Iberia	direct
07 May - 14 May	Iberia	direct
29 May - 12 Jun	Avianca
12 May - 19 May	Iberia
09 May - 16 May	Avianca
13 May - 19 May	Avianca
21 May - 28 May	Avianca
19 May - 02 Jun	Iberia
15 May - 04 Jun	Iberia	direct
21 May - 04 Jun	Iberia
10 May - 22 May	KLM
15 May - 05 Jun	Iberia	direct
07 May - 18 May	Iberia
01 May - 09 May	Iberia
21 May - 28 May	Iberia	direct
30 May - 10 Jun	Avianca
18 May - 01 Jun	United
24 May - 01 Jun	Avianca
24 May - 10 Jun	Iberia	direct
27 May - 03 Jun	United

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 486€

Return flights