DL1786
DL1786 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Ontario to Salt Lake City. Of 285 departures recorded from June 2025 to July 2026, 88.1% left on time, according to the US BTS.
- On-time departures88.1%of 285 flights
- Average delay2.2 min
- July 20262▼ 96.8%vs July 2025
- Cancelled0.0%
- Legs flown under this number4
Recorded departures by month
Short series — DL1786 has only 7 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods7 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | 46 | – | – |
| July | 62 | 2 | ▼ 96.8% |
| August | 62 | – | – |
| September | 47 | – | – |
| October | 54 | – | in progress |
| November | 12 | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → July 2026
On-time departures by month
Short series — DL1786 has only 7 months so far. Enough to show the level now, not enough to read a trend.
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 periods7 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | 84.8% | – | – |
| July | 85.5% | 100.0% | ▲ 17.0% |
| August | 90.3% | – | – |
| September | 95.7% | – | – |
| October | 81.5% | – | in progress |
| November | 100.0% | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → July 2026
Average departure delay by month
Short series — DL1786 has only 7 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · June 2025 → July 2026
Cancelled departures by month
Short series — DL1786 has only 7 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods7 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | 0 | – | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | – | – | – |
according to the US BTS · June 2025 → 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 100.0% 285
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Jun 8, 2025 → Jul 4, 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 |
|---|---|---|---|---|
| ONT SLC Ontario International Airport – Salt Lake City International Airport | 898 | 1.4 min | 86.2% | 145 |
| SLC ONT Salt Lake City International Airport – Ontario International Airport | 898 | 3.2 min | 89.9% | 138 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| June 2025 | 46 | 46 | 84.8% | 0 |
| July 2025 | 62 | 62 | 85.5% | 0 |
| August 2025 | 62 | 62 | 90.3% | 0 |
| September 2025 | 47 | 47 | 95.7% | 0 |
| October 2025 | 54 | 54 | 81.5% | 0 |
| November 2025 | 12 | 12 | 100.0% | 0 |
| July 2026 | 2 | 2 | 100.0% | 0 |