Cheapest return flights from Charlotte to San Juan in December from $198

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

Return flights

13 Dec - 15 Dec Frontier Airlines
08 Dec - 11 Dec Spirit Airlines
14 Dec - 18 Dec Frontier Airlines
14 Dec - 17 Dec Frontier Airlines
29 Dec - 12 Jan Spirit Airlines
11 Dec - 12 Dec Frontier Airlines
15 Dec - 18 Dec Frontier Airlines
31 Dec - 16 Jan Spirit Airlines
13 Dec - 20 Dec Frontier Airlines
04 Dec - 05 Dec Frontier Airlines
17 Dec - 22 Jan Frontier Airlines
29 Dec - 11 Jan Spirit Airlines
12 Dec - 14 Dec Frontier Airlines
18 Dec - 22 Dec Spirit Airlines
30 Dec - 16 Jan Spirit Airlines
31 Dec - 15 Jan Spirit Airlines
31 Dec - 17 Jan Spirit Airlines
22 Dec - 10 Jan Frontier Airlines
30 Dec - 15 Jan Spirit Airlines
30 Dec - 17 Jan Spirit Airlines

Also check the deals for one-way flights from Charlotte to San Juan in December.

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