Cheapest return flights from Atlanta (ATL) to San Jose (SJO), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
26 Sep 03 Oct Frontier Airlines
16 Sep 19 Sep Frontier Airlines
23 Sep 29 Sep Frontier Airlines
17 Sep 20 Sep Frontier Airlines
03 Sep 08 Sep Frontier Airlines
22 Sep 26 Sep Frontier Airlines
11 Sep 16 Sep Frontier Airlines
21 Sep 24 Sep Delta
Direct Flight
02 Sep 29 Oct Frontier Airlines
04 Sep 07 Sep jetBlue
02 Sep 29 Oct Delta
Direct Flight
03 Sep 06 Sep Frontier Airlines
08 Sep 12 Sep jetBlue
26 Sep 03 Oct Delta
Direct Flight
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deals for one-way flights from Atlanta to San Jose in September.

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Updated Aug 26, 2026.

About these fares

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