Cheapest one-way flights from Atlanta to San Jose in December from $86

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

One-Way flights

31 Dec Frontier Airlines direct
13 Dec Spirit Airlines
10 Dec Frontier Airlines
30 Dec Spirit Airlines
04 Dec Spirit Airlines
08 Dec Frontier Airlines
14 Dec Spirit Airlines
02 Dec Spirit Airlines
07 Dec Spirit Airlines
13 Dec Frontier Airlines direct

Also check the deals for return flights from Atlanta to San Jose 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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