DL1558
DL1558 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Detroit to Washington. Of 1,248 departures recorded from October 2024 to July 2026, 89.0% left on time, according to the US BTS.
- On-time departures89.0%of 1,248 flights
- Average delay2.8 min
- July 202662▲ 0.0%vs July 2025
- Cancelled2.2%
- 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 | 56 | 60 | ▲ 7.1% |
| February | 48 | 56 | ▲ 16.7% |
| March | 52 | 62 | ▲ 19.2% |
| April | 56 | 60 | ▲ 7.1% |
| May | 62 | 62 | 0.0% |
| June | 60 | 60 | 0.0% |
| July | 62 | 62 | 0.0% |
| August | 62 | – | – |
| September | 60 | – | – |
| October | 62 | – | in progress |
| November | 60 | – | – |
| December | 56 | – | – |
| Year to date (Jan–Jul) | 396 | 422 | ▲ 6.6% |
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 | 96.2% | 83.9% | ▼ 12.7% |
| February | 91.7% | 85.7% | ▼ 6.5% |
| March | 84.6% | 79.7% | ▼ 5.9% |
| April | 90.9% | 80.0% | ▼ 12.0% |
| May | 95.2% | 95.0% | ▼ 0.2% |
| June | 86.7% | 94.8% | ▲ 9.4% |
| July | 83.9% | 98.2% | ▲ 17.1% |
| August | 90.3% | – | – |
| September | 98.3% | – | – |
| October | 96.8% | – | in progress |
| November | 76.7% | – | – |
| December | 76.5% | – | – |
| Year-to-date average (Jan–Jul) | 89.9% | 88.2% | ▼ 1.9% |
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 | 4 | 4 | 0.0% |
| February | 0 | 0 | – |
| March | 0 | 3 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 0 | 2 | – |
| June | 0 | 2 | – |
| July | 0 | 6 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 5 | – | – |
| Year to date (Jan–Jul) | 5 | 17 | ▲ 240.0% |
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 97.8% 1,221
- Cancelled 2.2% 27
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 DCA Detroit Metropolitan Wayne County Airport – Ronald Reagan Washington National Airport | 651 | 0.5 min | 92.2% | 639 |
| DCA DTW Ronald Reagan Washington National Airport – Detroit Metropolitan Wayne County Airport | 651 | 5.1 min | 85.7% | 609 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 48 | 48 | 95.8% | 0 |
| December 2024 | 62 | 62 | 90.3% | 0 |
| January 2025 | 56 | 52 | 96.2% | 4 |
| February 2025 | 48 | 48 | 91.7% | 0 |
| March 2025 | 52 | 52 | 84.6% | 0 |
| April 2025 | 56 | 55 | 90.9% | 1 |
| May 2025 | 62 | 62 | 95.2% | 0 |
| June 2025 | 60 | 60 | 86.7% | 0 |
| July 2025 | 62 | 62 | 83.9% | 0 |
| August 2025 | 62 | 62 | 90.3% | 0 |
| September 2025 | 60 | 60 | 98.3% | 0 |
| October 2025 | 62 | 62 | 96.8% | 0 |
| November 2025 | 60 | 60 | 76.7% | 0 |
| December 2025 | 56 | 51 | 76.5% | 5 |
| January 2026 | 60 | 56 | 83.9% | 4 |
| February 2026 | 56 | 56 | 85.7% | 0 |
| March 2026 | 62 | 59 | 79.7% | 3 |
| April 2026 | 60 | 60 | 80.0% | 0 |
| May 2026 | 62 | 60 | 95.0% | 2 |
| June 2026 | 60 | 58 | 94.8% | 2 |
| July 2026 | 62 | 56 | 98.2% | 6 |