Cheapest one-way flights from Atlanta to San Juan in December from $95

AirHint found the following cheapest one-way flights from Atlanta (ATL) to San Juan (SJU) in December 2025 (see full year).

One-Way flights

06 Dec Spirit Airlines
03 Dec Spirit Airlines
09 Dec Spirit Airlines
10 Dec Spirit Airlines
08 Dec Spirit Airlines
17 Dec Frontier Airlines
03 Dec Frontier Airlines direct
07 Dec Frontier Airlines direct
08 Dec Frontier Airlines direct
10 Dec Frontier Airlines direct

Also check the deals for return flights from Atlanta 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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