AirHint found the following cheapest one-way flights from Atlanta (ATL) to San Juan (SJU) in September 2026 (see full year).
One-Way flights
| 05 Sep | Spirit Airlines | direct | |
| 04 Sep | Frontier Airlines | ||
| 09 Sep | Spirit Airlines | ||
| 03 Sep | Spirit Airlines | direct | |
| 10 Sep | Spirit Airlines | ||
| 16 Sep | Spirit Airlines | ||
| 04 Sep | Frontier Airlines | direct |
Also check the deals for return flights from Atlanta 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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