Cheapest one-way ATL–GRU flights, September

AirHint found the following cheapest one-way flights from Atlanta (ATL) to Sao Paulo (GRU) in September 2026 (see full year).

One-Way flights

01 Sep Frontier Airlines
02 Sep Frontier Airlines
30 Sep Spirit Airlines
28 Sep Spirit Airlines
29 Sep Spirit Airlines
05 Sep Spirit Airlines
04 Sep Frontier Airlines
03 Sep Frontier Airlines
10 Sep LATAM Airlines Group
30 Sep Delta direct

Also check the deals for return flights from Atlanta to Sao Paulo in September.

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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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