DL1246
DL1246 (Delta Air Lines) is a multi-stop service on 6 routes, busiest Milwaukee to Atlanta. Of 1,203 departures recorded from October 2024 to July 2026, 87.3% left on time, according to the US BTS.
- On-time departures87.3%of 1,203 flights
- Average delay5.0 min
- July 202644▼ 24.1%vs July 2025
- Cancelled1.3%
- Legs flown under this number6
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 62 | 46 | ▼ 25.8% |
| February | 56 | 39 | ▼ 30.4% |
| March | 62 | 55 | ▼ 11.3% |
| April | 35 | 60 | ▲ 71.4% |
| May | 54 | 60 | ▲ 11.1% |
| June | 60 | 48 | ▼ 20.0% |
| July | 58 | 44 | ▼ 24.1% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 62 | – | – |
| Year to date (Jan–Jul) | 387 | 352 | ▼ 9.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.1% | 93.5% | ▲ 6.1% |
| February | 89.3% | 84.2% | ▼ 5.7% |
| March | 87.1% | 78.4% | ▼ 10.0% |
| April | 82.9% | 85.0% | ▲ 2.6% |
| May | 92.6% | 93.1% | ▲ 0.6% |
| June | 84.8% | 89.6% | ▲ 5.7% |
| July | 86.2% | 86.4% | ▲ 0.2% |
| August | 83.3% | – | – |
| September | 96.7% | – | – |
| October | 88.7% | – | in progress |
| November | 81.7% | – | – |
| December | 73.3% | – | – |
| Year-to-date average (Jan–Jul) | 87.3% | 87.2% | ▼ 0.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 3 | 0 | ▼ 100.0% |
| February | 0 | 1 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 2 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 4 | 7 | ▲ 75.0% |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.8% 1,188
- Cancelled 1.2% 15
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
4| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MKE ATL General Mitchell International Airport – Hartsfield Jackson Atlanta International Airport | 1,078 | 6.3 min | 86.3% | 554 |
| ATL MKE Hartsfield Jackson Atlanta International Airport – General Mitchell International Airport | 1,078 | 1.4 min | 89.2% | 541 |
| LIT ATL Bill & Hillary Clinton National Airport/Adams Field – Hartsfield Jackson Atlanta International Airport | 727 | 38.5 min | 76.5% | 36 |
| ATL LIT Hartsfield Jackson Atlanta International Airport – Bill & Hillary Clinton National Airport/Adams Field | 727 | 10.0 min | 82.4% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 38 | 38 | 89.5% | 0 |
| November 2024 | 58 | 58 | 98.3% | 0 |
| December 2024 | 62 | 62 | 87.1% | 0 |
| January 2025 | 62 | 59 | 88.1% | 3 |
| February 2025 | 56 | 56 | 89.3% | 0 |
| March 2025 | 62 | 62 | 87.1% | 0 |
| April 2025 | 35 | 35 | 82.9% | 0 |
| May 2025 | 54 | 54 | 92.6% | 0 |
| June 2025 | 60 | 59 | 84.8% | 1 |
| July 2025 | 58 | 58 | 86.2% | 0 |
| August 2025 | 62 | 60 | 83.3% | 2 |
| September 2025 | 60 | 60 | 96.7% | 0 |
| October 2025 | 62 | 62 | 88.7% | 0 |
| November 2025 | 60 | 60 | 81.7% | 0 |
| December 2025 | 62 | 60 | 73.3% | 2 |
| January 2026 | 46 | 46 | 93.5% | 0 |
| February 2026 | 39 | 38 | 84.2% | 1 |
| March 2026 | 55 | 51 | 78.4% | 4 |
| April 2026 | 60 | 60 | 85.0% | 0 |
| May 2026 | 60 | 58 | 93.1% | 2 |
| June 2026 | 48 | 48 | 89.6% | 0 |
| July 2026 | 44 | 44 | 86.4% | 0 |