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Cheapest one-way flights from Miami (MIA) to San Juan (SJU), September

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Dates, airline, and price
Dates	Airline	Price
24 Sep	Frontier Airlines Direct Flight
14 Sep	Frontier Airlines Direct Flight
13 Sep	Frontier Airlines Direct Flight
20 Sep	Frontier Airlines Direct Flight
22 Sep	Frontier Airlines Direct Flight
30 Sep	Frontier Airlines Direct Flight
10 Sep	Frontier Airlines Direct Flight
25 Sep	Frontier Airlines Direct Flight
03 Sep	Frontier Airlines Direct Flight
05 Sep	Frontier Airlines Direct Flight

deals for return flights from Miami to San Juan in September.

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Updated Jul 25, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Miami (MIA) to San Juan (SJU), September

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