Flights Atlanta → Chicago — September 21, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Monday, September 21, 2026 on the Atlanta–Chicago route: 1 stop itinerary (2 flights) via Dallas/Fort Worth (DFW), from Atlanta Hartsfield-Jackson (ATL) to Chicago Midway (MDW), first flight Frontier Airlines F93021, departs 5:30 AM, arrives 11:59 AM, total travel time 7h 29m including layovers, flight time 4h 53m (layovers excluded), $130 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 6, 2026 and read by AirSource on September 10, 2026, 20:48 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: American Airlines AA1762, from Atlanta Hartsfield-Jackson (ATL) to Chicago O'Hare (ORD), departs 7:29 AM, arrives 8:53 AM, direct, 2h 24m, $154 per person. Fare as listed by Aviasales: carry-on bag included, checked bag not included, changes not allowed, non-refundable.