DL1857
DL1857 (Delta Air Lines) is a multi-stop service on 11 routes, busiest Detroit to Santa Ana. Of 416 departures recorded from December 2024 to July 2026, 77.2% left on time, according to the US BTS.
- On-time departures77.2%of 416 flights
- Average delay16.4 min
- July 202627▲ 800.0%vs July 2025
- Cancelled1.0%
- Legs flown under this number11
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 36 | 3 | ▼ 91.7% |
| February | 28 | 14 | ▼ 50.0% |
| March | 8 | 33 | ▲ 312.5% |
| April | 4 | 31 | ▲ 675.0% |
| May | – | 45 | – |
| June | 17 | 31 | ▲ 82.4% |
| July | 3 | 27 | ▲ 800.0% |
| August | – | – | – |
| September | 20 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 30 | – | – |
according to the US BTS · December 2024 → July 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 periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 80.6% | 100.0% | ▲ 24.1% |
| February | 74.1% | 78.6% | ▲ 6.1% |
| March | 85.7% | 90.9% | ▲ 6.1% |
| April | 75.0% | 90.3% | ▲ 20.4% |
| May | – | 55.6% | – |
| June | 88.2% | 58.1% | ▼ 34.2% |
| July | 100.0% | 92.3% | ▼ 7.7% |
| August | – | – | – |
| September | 90.0% | – | – |
| October | 90.3% | – | in progress |
| November | 79.3% | – | – |
| December | 53.3% | – | – |
according to the US BTS · December 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · December 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | – | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 1 | – |
| August | – | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
according to the US BTS · December 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 99.0% 412
- Cancelled 1.0% 4
Share of all recorded flights in the period, all legs. · Dec 19, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DTW SNA Detroit Metropolitan Wayne County Airport – John Wayne Orange County International Airport | 3,148 | 13.2 min | 79.8% | 159 |
| DTW MCI Detroit Metropolitan Wayne County Airport – Kansas City International Airport | 1,009 | 16.1 min | 77.8% | 99 |
| STT ATL Cyril E. King Airport – Hartsfield Jackson Atlanta International Airport | 2,575 | 16.4 min | 80.0% | 62 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2024 | 26 | 25 | 72.0% | 1 |
| January 2025 | 36 | 36 | 80.6% | 0 |
| February 2025 | 28 | 27 | 74.1% | 1 |
| March 2025 | 8 | 7 | 85.7% | 1 |
| April 2025 | 4 | 4 | 75.0% | 0 |
| June 2025 | 17 | 17 | 88.2% | 0 |
| July 2025 | 3 | 3 | 100.0% | 0 |
| September 2025 | 20 | 20 | 90.0% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 29 | 29 | 79.3% | 0 |
| December 2025 | 30 | 30 | 53.3% | 0 |
| January 2026 | 3 | 3 | 100.0% | 0 |
| February 2026 | 14 | 14 | 78.6% | 0 |
| March 2026 | 33 | 33 | 90.9% | 0 |
| April 2026 | 31 | 31 | 90.3% | 0 |
| May 2026 | 45 | 45 | 55.6% | 0 |
| June 2026 | 31 | 31 | 58.1% | 0 |
| July 2026 | 27 | 26 | 92.3% | 1 |