DL828
DL828 (Delta Air Lines) is a multi-stop service on 10 routes, busiest Ontario to Atlanta. Of 519 departures recorded from October 2024 to July 2026, 86.5% left on time, according to the US BTS.
- On-time departures86.5%of 519 flights
- Average delay8.8 min
- July 202615▼ 42.3%vs July 2025
- Cancelled1.7%
- Legs flown under this number10
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 | 30 | 30 | 0.0% |
| February | 28 | 25 | ▼ 10.7% |
| March | 22 | 48 | ▲ 118.2% |
| April | 25 | 38 | ▲ 52.0% |
| May | 19 | 18 | ▼ 5.3% |
| June | 24 | 6 | ▼ 75.0% |
| July | 26 | 15 | ▼ 42.3% |
| August | 20 | – | – |
| September | 17 | – | – |
| October | 23 | – | in progress |
| November | 24 | – | – |
| December | 26 | – | – |
| Year to date (Jan–Jul) | 174 | 180 | ▲ 3.4% |
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 | 66.7% | 82.8% | ▲ 24.1% |
| February | 71.4% | 78.3% | ▲ 9.6% |
| March | 81.8% | 76.6% | ▼ 6.4% |
| April | 84.0% | 92.1% | ▲ 9.7% |
| May | 100.0% | 72.2% | ▼ 27.8% |
| June | 100.0% | 66.7% | ▼ 33.3% |
| July | 92.0% | 66.7% | ▼ 27.5% |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 91.3% | – | in progress |
| November | 91.7% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 85.1% | 76.5% | ▼ 10.2% |
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 | 1 | – |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 3 | – | – |
| Year to date (Jan–Jul) | 2 | 4 | ▲ 100.0% |
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 98.3% 510
- Cancelled 1.7% 9
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ONT ATL Ontario International Airport – Hartsfield Jackson Atlanta International Airport | 3,050 | 0.6 min | 95.7% | 258 |
| MSP MKE Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – General Mitchell International Airport | 478 | 15.0 min | 69.4% | 62 |
| LAS BOS Harry Reid International Airport – Boston Logan International Airport | 3,822 | 20.2 min | 81.8% | 58 |
| SGF ATL Springfield Branson National Airport – Hartsfield Jackson Atlanta International Airport | 905 | 14.9 min | 71.0% | 31 |
| ATL SGF Hartsfield Jackson Atlanta International Airport – Springfield Branson National Airport | 905 | 2.4 min | 90.0% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 12 | 12 | 91.7% | 0 |
| November 2024 | 17 | 17 | 100.0% | 0 |
| December 2024 | 26 | 26 | 100.0% | 0 |
| January 2025 | 30 | 30 | 66.7% | 0 |
| February 2025 | 28 | 28 | 71.4% | 0 |
| March 2025 | 22 | 22 | 81.8% | 0 |
| April 2025 | 25 | 25 | 84.0% | 0 |
| May 2025 | 19 | 19 | 100.0% | 0 |
| June 2025 | 24 | 23 | 100.0% | 1 |
| July 2025 | 26 | 25 | 92.0% | 1 |
| August 2025 | 20 | 20 | 100.0% | 0 |
| September 2025 | 17 | 17 | 100.0% | 0 |
| October 2025 | 23 | 23 | 91.3% | 0 |
| November 2025 | 24 | 24 | 91.7% | 0 |
| December 2025 | 26 | 23 | 100.0% | 3 |
| January 2026 | 30 | 29 | 82.8% | 1 |
| February 2026 | 25 | 23 | 78.3% | 2 |
| March 2026 | 48 | 47 | 76.6% | 1 |
| April 2026 | 38 | 38 | 92.1% | 0 |
| May 2026 | 18 | 18 | 72.2% | 0 |
| June 2026 | 6 | 6 | 66.7% | 0 |
| July 2026 | 15 | 15 | 66.7% | 0 |