AirHint found the following cheapest return flights from Atlanta (ATL) to San Juan (SJU) in December 2026 (see full year).
Return flights
| 04 Dec - 12 Dec | Delta | ||
| 12 Dec - 18 Dec | Delta | direct | |
| 24 Dec - 03 Jan | Copa | ||
| 25 Dec - 02 Jan | Delta | direct | |
| 24 Dec - 03 Jan | Delta | direct |
Also check the deals for one-way flights from Atlanta to San Juan in December.
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