Cheapest return flights from San Juan to Madrid in September from $701

Best time to book flights for San Juan (SJU) to Madrid (MAD) flights at AirHint

AirHint found the following cheapest return flights from San Juan (SJU) to Madrid (MAD) in September 2025 (see full year).

Return flights

24 Sep - 10 Oct Finnair direct
19 Sep - 28 Sep jetBlue
28 Sep - 05 Oct Finnair direct
03 Sep - 09 Sep Iberia direct
10 Sep - 07 Oct Finnair direct
19 Sep - 28 Sep Finnair direct
21 Sep - 11 Oct Finnair direct
24 Sep - 11 Oct Finnair direct
01 Sep - 08 Sep British Airways
01 Sep - 08 Sep Iberia direct
04 Sep - 12 Sep Finnair direct
13 Sep - 23 Sep Finnair direct
11 Sep - 18 Sep United

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

Skyscanner

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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