Cheapest return flights from San Juan to Madrid in September from $454

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

Return flights

22 Sep - 29 Sep Iberia direct
25 Sep - 08 Oct British Airways direct
30 Sep - 14 Oct KLM
15 Sep - 25 Sep British Airways direct
27 Sep - 04 Oct Iberia direct
07 Sep - 25 Sep American Airlines
07 Sep - 25 Sep Iberia direct
01 Sep - 15 Sep American Airlines
01 Sep - 07 Sep Iberia
01 Sep - 20 Sep American Airlines
30 Sep - 14 Oct Iberia direct
01 Sep - 07 Sep Iberia direct
01 Sep - 20 Sep Iberia direct

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

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