DL1798
DL1798 (Delta Air Lines) is a multi-stop service on 5 routes, busiest Detroit to Houston. Of 260 departures recorded from December 2024 to June 2026, 87.6% left on time, according to the US BTS.
- On-time departures87.6%of 260 flights
- Average delay3.1 min
- June 202630▲ 30.4%vs June 2025
- Cancelled1.2%
- Legs flown under this number5
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | 5 | ▼ 16.7% |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 1 | – |
| June | 23 | 30 | ▲ 30.4% |
| July | 31 | – | – |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 30 | – | – |
according to the US BTS · December 2024 → June 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | 100.0% | 0.0% |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 100.0% | – |
| June | 87.0% | 70.0% | ▼ 19.5% |
| July | 83.9% | – | – |
| August | 93.6% | – | – |
| September | 100.0% | – | – |
| October | 100.0% | – | in progress |
| November | 83.3% | – | – |
| December | 72.4% | – | – |
according to the US BTS · December 2024 → June 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 2024 → June 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | – | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
according to the US BTS · December 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 98.8% 257
- Cancelled 1.2% 3
Share of all recorded flights in the period, all legs. · Dec 20, 2024 → Jun 21, 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 IAH Detroit Metropolitan Wayne County Airport – George Bush Intercontinental Airport | 1,731 | 1.6 min | 89.7% | 195 |
| SJU JFK Luis Munoz Marin International Airport – John F. Kennedy International Airport | 2,578 | 0.8 min | 90.3% | 34 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 12 | 12 | 100.0% | 0 |
| January 2025 | 6 | 6 | 100.0% | 0 |
| June 2025 | 23 | 23 | 87.0% | 0 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 31 | 100.0% | 0 |
| November 2025 | 30 | 30 | 83.3% | 0 |
| December 2025 | 30 | 29 | 72.4% | 1 |
| January 2026 | 5 | 3 | 100.0% | 2 |
| May 2026 | 1 | 1 | 100.0% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |