Cheap flights Atlanta (ATL) → Chicago (ORD)


Cheapest round-trip ATL → ORD

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21 August 202624 August 2026DirectFrontier AirlinesTickets from 125

One-way ATL → ORD (next month)

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15 July 2026DirectOW tickets from 94
16 July 2026DirectOW tickets from 96
17 July 2026DirectOW tickets from 96
18 July 2026DirectOW tickets from 109
19 July 2026DirectOW tickets from 109
20 July 2026DirectOW tickets from 109
21 July 2026DirectOW tickets from 109
22 July 2026DirectOW tickets from 126
23 July 2026DirectOW tickets from 145
24 July 2026DirectOW tickets from 164

Direct flights ATL → ORD

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17 July 202620 July 2026Frontier AirlinesTickets from 287
21 August 202624 August 2026Frontier AirlinesTickets from 125
4 September 20267 September 2026Frontier AirlinesTickets from 138