Chicago (MDW) to Atlanta (ATL) flights

Southwest Airlines, Delta Air Lines, Frontier Airlines fly nonstop from Chicago Midway International Airport to Hartsfield Jackson Atlanta International Airport, with about 69 flights a week in July 2026. The 591-mile flight takes about 1h 51m gate to gate.

From

MDW

Chicago

Chicago Midway International Airport

ATL

Atlanta

Hartsfield Jackson Atlanta International Airport

Distance: 591 mi · 951 km
Flight time: 1h 51m
Airlines: 3
Seats filled: 78%

Flights a week, July 2026

3,453 flights and 417,167 passengers in 12 months

Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying MDW to ATL

Airline	Flights a week	Aircraft	Passengers (12 months)	Flight time
Southwest Airlines	32	Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800	184,494	1h 45m
Delta Air Lines	24	Boeing 717-200, Airbus A320-100/200, Airbus A319	142,737	1h 48m
Frontier Airlines	13	Airbus A320neo, Airbus A321, Airbus A320-100/200	89,936	2h 14m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

MDW to ATL flight schedule

20 flight numbers flew this route in August 2026, 6 of them almost daily. The first usually leaves at 5:30am and the last at 7:40pm. Times are local and can change; check with the airline before you book.

Flight	Departs	Arrives	Days flown in August 2026	On time (12 months)
WN 2947Southwest Airlines	5:30am	8:15am	12	75%
DL 1285Delta Air Lines	6:05am	9:00am	31	91%
F9 2292Frontier Airlines	6:05am	9:22am	31	70%
WN 4796Southwest Airlines	7:40am	10:30am	8	n/a
WN 2522Southwest Airlines	8:10am	11:10am	12	83%
WN 2828Southwest Airlines	8:40am	11:40am	8	n/a
WN 1889Southwest Airlines	9:10am	12:00pm	4	n/a
DL 1063Delta Air Lines	10:54am	1:47pm	31	88%
F9 2144Frontier Airlines	11:06am	2:09pm	31	62%
DL 2417Delta Air Lines	12:46pm	3:45pm	30	85%
WN 487Southwest Airlines	12:50pm	3:40pm	8	86%
WN 1934Southwest Airlines	1:10pm	4:05pm	4	n/a
WN 3459Southwest Airlines	1:20pm	4:15pm	16	63%
WN 3736Southwest Airlines	3:05pm	5:55pm	4	n/a
WN 2414Southwest Airlines	3:10pm	6:00pm	12	50%
WN 235Southwest Airlines	3:50pm	6:40pm	8	n/a
DL 1728Delta Air Lines	5:10pm	8:19pm	26	76%
WN 170Southwest Airlines	6:05pm	9:00pm	12	58%
WN 4678Southwest Airlines	7:25pm	10:15pm	8	n/a
WN 4209Southwest Airlines	7:40pm	10:30pm	4	n/a

Is MDW to ATL on time?

From September 2025 to August 2026, 79% of 3,538 flights arrived within 15 minutes of schedule and 2% were cancelled. Flights leaving around 8am were the most punctual (87%), those around 6pm the least (67%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (44%).

Airline	Flights	On time	Average delay	Cancelled
Southwest Airlines	1,539	75%	15 min	1.1%
Delta Air Lines	1,359	87%	13 min	2.7%
Frontier Airlines	640	70%	17 min	2.7%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departure	Flights	On time
6am to 7am	709	81%
7am to 8am	167	89%
8am to 9am	187	87%
9am to 10am	159	92%
10am to 11am	309	87%
11am to 12pm	199	75%
12pm to 1pm	480	78%
1pm to 2pm	111	77%
2pm to 3pm	199	76%
3pm to 4pm	110	69%
4pm to 5pm	143	71%
5pm to 6pm	328	77%
6pm to 7pm	289	67%
7pm to 8pm	83	61%

Flights by month

Month	Flights	Passengers
August 2025	306	37,611
September 2025	292	35,669
October 2025	303	38,465
November 2025	275	31,171
December 2025	281	34,353
January 2026	269	25,722
February 2026	259	27,577
March 2026	278	31,128
April 2026	287	32,541
May 2026	296	39,288
June 2026	302	41,618
July 2026	306	42,024

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.