DL1427
DL1427 (Delta Air Lines) is a multi-stop service on 6 routes, busiest Detroit to Raleigh. Of 938 departures recorded from October 2024 to July 2026, 91.3% left on time, according to the US BTS.
- On-time departures91.3%of 938 flights
- Average delay4.0 min
- July 202648▼ 7.7%vs July 2025
- Cancelled1.5%
- 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 | 28 | 22 | ▼ 21.4% |
| February | 36 | 18 | ▼ 50.0% |
| March | 52 | 45 | ▼ 13.5% |
| April | 52 | 52 | 0.0% |
| May | 30 | 50 | ▲ 66.7% |
| June | 48 | 46 | ▼ 4.2% |
| July | 52 | 48 | ▼ 7.7% |
| August | 54 | – | – |
| September | 44 | – | – |
| October | 52 | – | in progress |
| November | 48 | – | – |
| December | 50 | – | – |
| Year to date (Jan–Jul) | 298 | 281 | ▼ 5.7% |
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 | 75.0% | 90.0% | ▲ 20.0% |
| February | 80.6% | 83.3% | ▲ 3.4% |
| March | 96.2% | 88.4% | ▼ 8.1% |
| April | 94.2% | 96.0% | ▲ 1.9% |
| May | 96.7% | 96.0% | ▼ 0.7% |
| June | 93.8% | 95.7% | ▲ 2.0% |
| July | 92.3% | 95.2% | ▲ 3.2% |
| August | 90.4% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 97.9% | – | – |
| December | 62.0% | – | – |
| Year-to-date average (Jan–Jul) | 89.8% | 92.1% | ▲ 2.5% |
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 | 0 | 2 | – |
| February | 0 | 0 | – |
| March | 0 | 2 | – |
| April | 0 | 2 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 6 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 12 |
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 98.5% 924
- Cancelled 1.5% 14
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| DTW RDU Detroit Metropolitan Wayne County Airport – Raleigh-Durham International Airport | 807 | -0.4 min | 94.9% | 442 |
| RDU DTW Raleigh-Durham International Airport – Detroit Metropolitan Wayne County Airport | 807 | 3.2 min | 92.9% | 416 |
| MCO DTW Orlando International Airport – Detroit Metropolitan Wayne County Airport | 1,544 | 46.5 min | 51.5% | 33 |
| DTW MCO Detroit Metropolitan Wayne County Airport – Orlando International Airport | 1,544 | 30.3 min | 67.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 29 | 29 | 89.7% | 0 |
| November 2024 | 34 | 34 | 97.1% | 0 |
| December 2024 | 48 | 48 | 87.5% | 0 |
| January 2025 | 28 | 28 | 75.0% | 0 |
| February 2025 | 36 | 36 | 80.6% | 0 |
| March 2025 | 52 | 52 | 96.2% | 0 |
| April 2025 | 52 | 52 | 94.2% | 0 |
| May 2025 | 30 | 30 | 96.7% | 0 |
| June 2025 | 48 | 48 | 93.8% | 0 |
| July 2025 | 52 | 52 | 92.3% | 0 |
| August 2025 | 54 | 52 | 90.4% | 2 |
| September 2025 | 44 | 44 | 100.0% | 0 |
| October 2025 | 52 | 52 | 100.0% | 0 |
| November 2025 | 48 | 48 | 97.9% | 0 |
| December 2025 | 50 | 50 | 62.0% | 0 |
| January 2026 | 22 | 20 | 90.0% | 2 |
| February 2026 | 18 | 18 | 83.3% | 0 |
| March 2026 | 45 | 43 | 88.4% | 2 |
| April 2026 | 52 | 50 | 96.0% | 2 |
| May 2026 | 50 | 50 | 96.0% | 0 |
| June 2026 | 46 | 46 | 95.7% | 0 |
| July 2026 | 48 | 42 | 95.2% | 6 |