Cheapest return IND–ATL flights, September

AirHint found the following cheapest return flights from Indianapolis (IND) to Atlanta (ATL) in September 2026 (see full year).

Return flights

04 Sep - 13 Sep Frontier Airlines direct
25 Sep - 30 Sep Frontier Airlines direct
10 Sep - 13 Sep Delta direct

Also check the deals for one-way flights from Indianapolis to Atlanta in September.

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