Cheapest return flights from Charlotte to San Juan in December from 379€

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

Return flights

10 Dec - 14 Dec Southwest Airlines
22 Dec - 29 Dec Frontier Airlines direct
29 Dec - 02 Jan Frontier Airlines direct
13 Dec - 17 Dec Southwest Airlines
31 Dec - 12 Jan United
03 Dec - 07 Dec United
17 Dec - 22 Dec Frontier Airlines
13 Dec - 20 Dec Frontier Airlines
31 Dec - 08 Jan United
25 Dec - 31 Dec Delta
17 Dec - 24 Dec United
25 Dec - 30 Dec Southwest Airlines
22 Dec - 27 Dec Southwest Airlines
23 Dec - 03 Jan Southwest Airlines

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

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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