Milwaukee (MKE) to Atlanta (ATL) flights
Delta Air Lines flies nonstop from General Mitchell International Airport to Hartsfield Jackson Atlanta International Airport, with about 43 flights a week in July 2026. The 669-mile flight takes about 1h 56m gate to gate.
- Distance
- 669 mi · 1,077 km
- Flight time
- 1h 56m
- Airlines
- 1
- Seats filled
- 75%
Airlines flying MKE to ATL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 43 | Boeing 737-900ER, Boeing 737-800, Airbus A321 | 280,175 | 1h 55m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 6,218 | 2h 15m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MKE to ATL flight schedule
7 flight numbers flew this route in August 2026, 7 of them almost daily. The first usually leaves at 5:34am and the last at 5:19pm. 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) |
|---|---|---|---|---|
| DL 1221Delta Air Lines | 5:34am | 8:34am | 31 | 91% |
| DL 1236Delta Air Lines | 7:03am | 10:03am | 31 | 89% |
| DL 2999Delta Air Lines | 10:22am | 1:25pm | 31 | 95% |
| DL 1151Delta Air Lines | 12:51pm | 3:59pm | 31 | 90% |
| DL 1246Delta Air Lines | 3:01pm | 6:11pm | 22 | 85% |
| DL 2152Delta Air Lines | 4:17pm | 7:28pm | 21 | 87% |
| DL 1206Delta Air Lines | 5:19pm | 9:58pm | 31 | 71% |
Is MKE to ATL on time?
From September 2025 to August 2026, 89% of 2,264 flights arrived within 15 minutes of schedule and 2% were cancelled. Flights leaving around 10am were the most punctual (94%), those around 6pm the least (81%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (44%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 2,202 | 89% | 10 min | 2% |
| Frontier Airlines | 62 | 67% | 20 min | 1.6% |
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, relative | On time |
|---|---|---|---|
| 5am to 6am | 361 | 90% | |
| 6am to 7am | 63 | 95% | |
| 7am to 8am | 306 | 88% | |
| 10am to 11am | 370 | 94% | |
| 11am to 12pm | 53 | 82% | |
| 12pm to 1pm | 292 | 90% | |
| 2pm to 3pm | 147 | 86% | |
| 3pm to 4pm | 168 | 88% | |
| 4pm to 5pm | 113 | 83% | |
| 5pm to 6pm | 167 | 87% | |
| 6pm to 7pm | 203 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 195 | 27,628 | |
| September 2025 | 187 | 23,636 | |
| October 2025 | 202 | 26,290 | |
| November 2025 | 171 | 20,930 | |
| December 2025 | 177 | 21,144 | |
| January 2026 | 159 | 19,290 | |
| February 2026 | 162 | 21,172 | |
| March 2026 | 170 | 24,854 | |
| April 2026 | 188 | 22,507 | |
| May 2026 | 213 | 25,058 | |
| June 2026 | 199 | 27,574 | |
| July 2026 | 190 | 26,310 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.