AirHint found the following cheapest one-way flights from Chicago (ORD) to Atlanta (ATL) in October 2025 (see full year).

One-Way flights

07 Oct	Frontier Airlines	direct
16 Oct	Frontier Airlines	direct
04 Oct	Frontier Airlines	direct
06 Oct	Frontier Airlines	direct
05 Oct	Frontier Airlines	direct
14 Oct	Delta	direct
13 Oct	Frontier Airlines	direct
17 Oct	Spirit Airlines
19 Oct	Spirit Airlines
26 Oct	Spirit Airlines

Also check the deals for return flights from Chicago to Atlanta in October.

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 one-way flights from Chicago to Atlanta in October from 30€

One-Way flights