Cheapest return MAD–SJU flights, September

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

Return flights

22 Sep - 04 Oct jetBlue
01 Sep - 14 Sep jetBlue
16 Sep - 27 Sep jetBlue
05 Sep - 14 Sep jetBlue
10 Sep - 20 Sep Iberia
02 Sep - 09 Sep jetBlue
04 Sep - 14 Sep jetBlue
07 Sep - 15 Sep jetBlue
03 Sep - 06 Sep Iberia
08 Sep - 18 Sep Lufthansa
09 Sep - 16 Sep Lufthansa
29 Sep - 06 Oct Lufthansa
24 Sep - 08 Oct Iberia
26 Sep - 10 Oct Delta
26 Sep - 03 Oct Delta
19 Sep - 02 Oct Air France
27 Sep - 11 Oct Delta
30 Sep - 08 Oct Iberia
14 Sep - 03 Oct Finnair direct
24 Sep - 08 Oct Finnair direct

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

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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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