AirHint found the following cheapest return flights from Atlanta (ATL) to San Jose (SJO) in March 2026 (see full year).

Return flights

07 Mar - 14 Mar	Frontier Airlines	direct
05 Mar - 09 Mar	jetBlue
12 Mar - 15 Mar	Frontier Airlines
14 Mar - 21 Mar	Frontier Airlines
14 Mar - 21 Mar	Frontier Airlines	direct
11 Mar - 15 Mar	jetBlue
29 Mar - 04 Apr	jetBlue
05 Mar - 09 Mar	Delta	direct
11 Mar - 15 Mar	Delta	direct
12 Mar - 15 Mar	Delta	direct
06 Mar - 14 Mar	Delta	direct
29 Mar - 04 Apr	Delta	direct

Also check the deals for one-way flights from Atlanta to San Jose in March.

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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Cheapest return flights from Atlanta to San Jose in March from $324

Return flights