DL1543
DL1543 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Dallas-Fort Worth. Of 622 departures recorded from October 2024 to July 2026, 75.0% left on time, according to the US BTS.
- On-time departures75.0%of 622 flights
- Average delay13.1 min
- July 202623▲ 0.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number2
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 | 27 | 26 | ▼ 3.7% |
| February | 22 | 23 | ▲ 4.5% |
| March | 26 | 27 | ▲ 3.8% |
| April | 26 | 26 | 0.0% |
| May | 25 | 25 | 0.0% |
| June | 24 | 23 | ▼ 4.2% |
| July | 23 | 23 | 0.0% |
| August | 25 | – | – |
| September | 29 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 173 | 173 | 0.0% |
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 | 76.9% | 72.0% | ▼ 6.4% |
| February | 68.2% | 91.3% | ▲ 33.9% |
| March | 80.8% | 81.5% | ▲ 0.9% |
| April | 73.1% | 92.3% | ▲ 26.3% |
| May | 60.0% | 75.0% | ▲ 25.0% |
| June | 58.3% | 73.9% | ▲ 26.7% |
| July | 59.1% | 69.6% | ▲ 17.7% |
| August | 88.0% | – | – |
| September | 82.8% | – | – |
| October | 90.3% | – | in progress |
| November | 75.9% | – | – |
| December | 72.4% | – | – |
| Year-to-date average (Jan–Jul) | 68.1% | 79.4% | ▲ 16.6% |
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 | 1 | 1 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 1 | – |
| June | 0 | 0 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 2 | 2 | 0.0% |
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 99.2% 617
- Cancelled 0.8% 5
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW DFW Detroit Metropolitan Wayne County Airport – Dallas Fort Worth International Airport | 1,587 | 13.0 min | 74.9% | 571 |
| DFW DTW Dallas Fort Worth International Airport – Detroit Metropolitan Wayne County Airport | 1,587 | 13.9 min | 76.5% | 51 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 35 | 35 | 94.3% | 0 |
| November 2024 | 50 | 50 | 72.0% | 0 |
| December 2024 | 47 | 47 | 51.1% | 0 |
| January 2025 | 27 | 26 | 76.9% | 1 |
| February 2025 | 22 | 22 | 68.2% | 0 |
| March 2025 | 26 | 26 | 80.8% | 0 |
| April 2025 | 26 | 26 | 73.1% | 0 |
| May 2025 | 25 | 25 | 60.0% | 0 |
| June 2025 | 24 | 24 | 58.3% | 0 |
| July 2025 | 23 | 22 | 59.1% | 1 |
| August 2025 | 25 | 25 | 88.0% | 0 |
| September 2025 | 29 | 29 | 82.8% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 29 | 75.9% | 1 |
| December 2025 | 29 | 29 | 72.4% | 0 |
| January 2026 | 26 | 25 | 72.0% | 1 |
| February 2026 | 23 | 23 | 91.3% | 0 |
| March 2026 | 27 | 27 | 81.5% | 0 |
| April 2026 | 26 | 26 | 92.3% | 0 |
| May 2026 | 25 | 24 | 75.0% | 1 |
| June 2026 | 23 | 23 | 73.9% | 0 |
| July 2026 | 23 | 23 | 69.6% | 0 |