AirHint found the following cheapest return flights from Charlotte (CLT) to San Juan (SJU) in March 2026 (see full year).
Return flights
| 07 Mar - 10 Mar | Frontier Airlines | ||
| 20 Mar - 23 Mar | Frontier Airlines | ||
| 07 Mar - 23 Mar | Spirit Airlines |
Also check the deals for one-way flights from Charlotte to San Juan in March.
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