DL1228
DL1228 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Atlanta. Of 595 departures recorded from October 2024 to June 2026, 80.2% left on time, according to the US BTS.
- On-time departures80.2%of 595 flights
- Average delay12.3 min
- June 20261▼ 96.7%vs June 2025
- Cancelled0.7%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 30 | 31 | ▲ 3.3% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 1 | ▼ 96.7% |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jun) | 180 | 152 | ▼ 15.6% |
according to the US BTS · October 2024 → June 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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 66.7% | 65.5% | ▼ 1.7% |
| February | 85.7% | 92.9% | ▲ 8.3% |
| March | 83.9% | 64.5% | ▼ 23.1% |
| April | 80.0% | 86.7% | ▲ 8.3% |
| May | 80.7% | 80.7% | 0.0% |
| June | 70.0% | 100.0% | ▲ 42.9% |
| July | 74.2% | – | – |
| August | 87.1% | – | – |
| September | 93.3% | – | – |
| October | 90.3% | – | in progress |
| November | 75.9% | – | – |
| December | 60.0% | – | – |
| Year-to-date average (Jan–Jun) | 77.8% | 81.7% | ▲ 5.0% |
according to the US BTS · October 2024 → June 2026
Average departure delay by month
according to the US BTS · October 2024 → June 2026
Cancelled departures by month
The most recent periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jun) | 0 | 2 |
according to the US BTS · October 2024 → June 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 99.3% 591
- Cancelled 0.7% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 1, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW ATL Detroit Metropolitan Wayne County Airport – Hartsfield Jackson Atlanta International Airport | 958 | 12.3 min | 80.3% | 594 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 29 | 29 | 86.2% | 0 |
| January 2025 | 30 | 30 | 66.7% | 0 |
| February 2025 | 28 | 28 | 85.7% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 30 | 80.0% | 0 |
| May 2025 | 31 | 31 | 80.7% | 0 |
| June 2025 | 30 | 30 | 70.0% | 0 |
| July 2025 | 31 | 31 | 74.2% | 0 |
| August 2025 | 31 | 31 | 87.1% | 0 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 29 | 75.9% | 1 |
| December 2025 | 31 | 30 | 60.0% | 1 |
| January 2026 | 31 | 29 | 65.5% | 2 |
| February 2026 | 28 | 28 | 92.9% | 0 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 1 | 1 | 100.0% | 0 |