DL825
DL825 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Atlanta to Las Vegas. Of 525 departures recorded from October 2024 to July 2026, 74.5% left on time, according to the US BTS.
- On-time departures74.5%of 525 flights
- Average delay18.0 min
- July 202629▼ 6.5%vs July 2025
- Cancelled1.3%
- 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 | 20 | 23 | ▲ 15.0% |
| February | 14 | 14 | 0.0% |
| March | 27 | 28 | ▲ 3.7% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 29 | ▼ 6.5% |
| August | 15 | – | – |
| September | 12 | – | – |
| October | 16 | – | in progress |
| November | 14 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 183 | 185 | ▲ 1.1% |
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 | 70.0% | 82.6% | ▲ 18.0% |
| February | 85.7% | 64.3% | ▼ 25.0% |
| March | 74.1% | 74.1% | 0.0% |
| April | 86.2% | 76.7% | ▼ 11.1% |
| May | 80.0% | 77.4% | ▼ 3.2% |
| June | 53.6% | 73.3% | ▲ 36.9% |
| July | 56.7% | 65.5% | ▲ 15.6% |
| August | 64.3% | – | – |
| September | 66.7% | – | – |
| October | 56.3% | – | in progress |
| November | 78.6% | – | – |
| December | 61.9% | – | – |
| Year-to-date average (Jan–Jul) | 72.3% | 73.4% | ▲ 1.5% |
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 | 0 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 1 | 0 | ▼ 100.0% |
| May | 1 | 0 | ▼ 100.0% |
| June | 2 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 5 | 1 | ▼ 80.0% |
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 98.7% 518
- Cancelled 1.3% 7
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 |
|---|---|---|---|---|
| ATL LAS Hartsfield Jackson Atlanta International Airport – Harry Reid International Airport | 2,805 | 18.5 min | 74.5% | 489 |
| SAN BOS San Diego International Airport – Boston Logan International Airport | 4,156 | 11.9 min | 75.0% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 28 | 28 | 100.0% | 0 |
| December 2024 | 31 | 31 | 90.3% | 0 |
| January 2025 | 20 | 20 | 70.0% | 0 |
| February 2025 | 14 | 14 | 85.7% | 0 |
| March 2025 | 27 | 27 | 74.1% | 0 |
| April 2025 | 30 | 29 | 86.2% | 1 |
| May 2025 | 31 | 30 | 80.0% | 1 |
| June 2025 | 30 | 28 | 53.6% | 2 |
| July 2025 | 31 | 30 | 56.7% | 1 |
| August 2025 | 15 | 14 | 64.3% | 1 |
| September 2025 | 12 | 12 | 66.7% | 0 |
| October 2025 | 16 | 16 | 56.3% | 0 |
| November 2025 | 14 | 14 | 78.6% | 0 |
| December 2025 | 21 | 21 | 61.9% | 0 |
| January 2026 | 23 | 23 | 82.6% | 0 |
| February 2026 | 14 | 14 | 64.3% | 0 |
| March 2026 | 28 | 27 | 74.1% | 1 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 31 | 31 | 77.4% | 0 |
| June 2026 | 30 | 30 | 73.3% | 0 |
| July 2026 | 29 | 29 | 65.5% | 0 |