Cheapest return flights from Charlotte to San Juan in September from 168€

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

Return flights

07 Sep - 12 Sep Frontier Airlines
13 Sep - 18 Sep Frontier Airlines
26 Sep - 29 Sep Frontier Airlines
08 Sep - 13 Sep Frontier Airlines
20 Sep - 29 Sep Spirit Airlines
09 Sep - 13 Sep Frontier Airlines
15 Sep - 02 Oct Spirit Airlines
19 Sep - 22 Sep Frontier Airlines
18 Sep - 21 Sep Frontier Airlines
14 Sep - 02 Oct Spirit Airlines
18 Sep - 02 Oct Spirit Airlines
19 Sep - 02 Oct Spirit Airlines
13 Sep - 02 Oct Spirit Airlines
26 Sep - 02 Oct Spirit Airlines
27 Sep - 30 Sep Frontier Airlines
15 Sep - 18 Sep Spirit Airlines
15 Sep - 03 Oct Spirit Airlines
14 Sep - 03 Oct Spirit Airlines
18 Sep - 03 Oct Spirit Airlines
19 Sep - 03 Oct Spirit Airlines

Also check the deals for one-way flights from Charlotte 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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