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Cheapest one-way flights from New York (LGA) to San Juan (SJU), September

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Dates, airline, and price
Dates	Airline	Price
01 Sep	American Airlines
02 Sep	United
23 Sep	United
17 Sep	United
18 Sep	United
30 Sep	United
24 Sep	Frontier Airlines
08 Sep	Frontier Airlines
16 Sep	Frontier Airlines
13 Sep	Frontier Airlines

deals for return flights from New York to San Juan in September.

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Updated Jul 19, 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 New York (LGA) to San Juan (SJU), September

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