DL857
DL857 (Delta Air Lines) is a multi-stop service on 8 routes, busiest Las Vegas to Atlanta. Of 636 departures recorded from October 2024 to July 2026, 76.0% left on time, according to the US BTS.
- On-time departures76.0%of 636 flights
- Average delay14.8 min
- July 202625▼ 50.0%vs July 2025
- Cancelled2.5%
- Legs flown under this number8
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 | 57 | 29 | ▼ 49.1% |
| February | 56 | 45 | ▼ 19.6% |
| March | 39 | 38 | ▼ 2.6% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 29 | 29 | 0.0% |
| July | 50 | 25 | ▼ 50.0% |
| August | 40 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 3 | – | – |
| December | 11 | – | – |
| Year to date (Jan–Jul) | 292 | 227 | ▼ 22.3% |
according to the US BTS · October 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 | 84.6% | 88.5% | ▲ 4.5% |
| February | 90.9% | 93.3% | ▲ 2.7% |
| March | 74.4% | 84.2% | ▲ 13.2% |
| April | 53.6% | 63.3% | ▲ 18.2% |
| May | 71.0% | 64.5% | ▼ 9.1% |
| June | 70.4% | 82.8% | ▲ 17.6% |
| July | 44.7% | 72.0% | ▲ 61.1% |
| August | 65.0% | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 100.0% | – | – |
| December | 63.6% | – | – |
| Year-to-date average (Jan–Jul) | 69.9% | 78.4% | ▲ 12.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 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 | 5 | 3 | ▼ 40.0% |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 0 | – |
| April | 2 | 0 | ▼ 100.0% |
| May | 0 | 0 | – |
| June | 2 | 0 | ▼ 100.0% |
| July | 3 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 13 | 3 | ▼ 76.9% |
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 97.5% 620
- Cancelled 2.5% 16
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
6| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| LAS ATL Harry Reid International Airport – Hartsfield Jackson Atlanta International Airport | 2,805 | 11.5 min | 73.3% | 335 |
| TYS ATL McGhee Tyson Airport – Hartsfield Jackson Atlanta International Airport | 245 | 0.4 min | 88.1% | 62 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 10.2 min | 90.0% | 62 |
| ATL TYS Hartsfield Jackson Atlanta International Airport – McGhee Tyson Airport | 245 | 1.7 min | 89.8% | 62 |
| JFK MCO John F. Kennedy International Airport – Orlando International Airport | 1,521 | 18.8 min | 67.3% | 55 |
| MCO JFK Orlando International Airport – John F. Kennedy International Airport | 1,521 | 109.0 min | 31.3% | 35 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 28 | 28 | 96.4% | 0 |
| December 2024 | 15 | 15 | 93.3% | 0 |
| January 2025 | 57 | 52 | 84.6% | 5 |
| February 2025 | 56 | 55 | 90.9% | 1 |
| March 2025 | 39 | 39 | 74.4% | 0 |
| April 2025 | 30 | 28 | 53.6% | 2 |
| May 2025 | 31 | 31 | 71.0% | 0 |
| June 2025 | 29 | 27 | 70.4% | 2 |
| July 2025 | 50 | 47 | 44.7% | 3 |
| August 2025 | 40 | 40 | 65.0% | 0 |
| November 2025 | 3 | 3 | 100.0% | 0 |
| December 2025 | 11 | 11 | 63.6% | 0 |
| January 2026 | 29 | 26 | 88.5% | 3 |
| February 2026 | 45 | 45 | 93.3% | 0 |
| March 2026 | 38 | 38 | 84.2% | 0 |
| April 2026 | 30 | 30 | 63.3% | 0 |
| May 2026 | 31 | 31 | 64.5% | 0 |
| June 2026 | 29 | 29 | 82.8% | 0 |
| July 2026 | 25 | 25 | 72.0% | 0 |