Cheapest return flights from Atlanta to San Juan in September from 132€

AirHint found the following cheapest return flights from Atlanta (ATL) to San Juan (SJU) in September 2025 (see full year).

Return flights

15 Sep - 20 Sep Frontier Airlines direct
26 Sep - 29 Sep Frontier Airlines direct
06 Sep - 18 Sep Spirit Airlines
06 Sep - 11 Sep Spirit Airlines
01 Sep - 18 Sep Spirit Airlines
01 Sep - 11 Sep Spirit Airlines
01 Sep - 04 Sep Spirit Airlines
07 Sep - 18 Sep Spirit Airlines
21 Sep - 05 Oct Spirit Airlines
25 Sep - 05 Oct Spirit Airlines
28 Sep - 05 Oct Spirit Airlines
09 Sep - 11 Sep Frontier Airlines
25 Sep - 29 Sep Spirit Airlines
19 Sep - 05 Oct Spirit Airlines
24 Sep - 05 Oct Spirit Airlines
26 Sep - 05 Oct Spirit Airlines
17 Sep - 05 Oct Spirit Airlines
29 Sep - 05 Oct Spirit Airlines
15 Sep - 05 Oct Spirit Airlines
25 Sep - 12 Oct Spirit Airlines

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

Skyscanner

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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