Cheapest return flights from Atlanta to San Juan in December from 229€

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

Return flights

01 Dec - 05 Dec Delta direct
04 Dec - 06 Dec Delta direct
02 Dec - 09 Dec Delta direct
03 Dec - 09 Dec Delta direct
11 Dec - 14 Dec Frontier Airlines
05 Dec - 08 Dec Southwest Airlines
05 Dec - 07 Dec Southwest Airlines
05 Dec - 09 Dec Southwest Airlines
04 Dec - 07 Dec Southwest Airlines
04 Dec - 07 Dec Delta direct
29 Dec - 02 Jan Delta direct
28 Dec - 01 Jan Delta direct
19 Dec - 01 Jan Southwest Airlines
19 Dec - 04 Jan Southwest Airlines
27 Dec - 03 Jan Delta direct
19 Dec - 01 Jan Delta direct
19 Dec - 04 Jan Delta direct

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

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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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