DL1456
DL1456 (Delta Air Lines) is a multi-stop service on 9 routes, busiest Atlanta to Chicago. Of 744 departures recorded from October 2024 to July 2026, 85.4% left on time, according to the US BTS.
- On-time departures85.4%of 744 flights
- Average delay8.7 min
- July 202648▼ 22.6%vs July 2025
- Cancelled0.5%
- Legs flown under this number9
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 4 | 25 | ▲ 525.0% |
| February | – | 12 | – |
| March | 3 | 22 | ▲ 633.3% |
| April | 13 | 28 | ▲ 115.4% |
| May | 31 | 46 | ▲ 48.4% |
| June | 53 | 46 | ▼ 13.2% |
| July | 62 | 48 | ▼ 22.6% |
| August | 61 | – | – |
| September | 52 | – | – |
| October | 60 | – | in progress |
| November | 60 | – | – |
| December | 38 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 75.0% | 75.0% | 0.0% |
| February | – | 83.3% | – |
| March | 33.3% | 71.4% | ▲ 114.3% |
| April | 92.3% | 89.3% | ▼ 3.3% |
| May | 90.3% | 95.7% | ▲ 5.9% |
| June | 79.3% | 91.3% | ▲ 15.2% |
| July | 80.7% | 87.5% | ▲ 8.5% |
| August | 89.8% | – | – |
| September | 94.2% | – | – |
| October | 88.3% | – | in progress |
| November | 80.0% | – | – |
| December | 60.5% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | – | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 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 99.5% 740
- Cancelled 0.5% 4
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 |
|---|---|---|---|---|
| ATL ORD Hartsfield Jackson Atlanta International Airport – Chicago O'Hare International Airport | 976 | 6.4 min | 87.8% | 312 |
| ORD ATL Chicago O'Hare International Airport – Hartsfield Jackson Atlanta International Airport | 976 | 18.5 min | 79.8% | 184 |
| MSP IND Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field – Indianapolis International Airport | 808 | -0.6 min | 89.6% | 67 |
| IND MSP Indianapolis International Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 808 | -0.6 min | 92.5% | 67 |
| BWI ATL Baltimore/Washington International Thurgood Marshall Airport – Hartsfield Jackson Atlanta International Airport | 928 | 8.5 min | 78.4% | 38 |
| DFW SLC Dallas Fort Worth International Airport – Salt Lake City International Airport | 1,590 | 7.4 min | 76.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 30 | 30 | 93.3% | 0 |
| December 2024 | 30 | 30 | 90.0% | 0 |
| January 2025 | 4 | 4 | 75.0% | 0 |
| March 2025 | 3 | 3 | 33.3% | 0 |
| April 2025 | 13 | 13 | 92.3% | 0 |
| May 2025 | 31 | 31 | 90.3% | 0 |
| June 2025 | 53 | 53 | 79.3% | 0 |
| July 2025 | 62 | 62 | 80.7% | 0 |
| August 2025 | 61 | 59 | 89.8% | 2 |
| September 2025 | 52 | 52 | 94.2% | 0 |
| October 2025 | 60 | 60 | 88.3% | 0 |
| November 2025 | 60 | 60 | 80.0% | 0 |
| December 2025 | 38 | 38 | 60.5% | 0 |
| January 2026 | 25 | 24 | 75.0% | 1 |
| February 2026 | 12 | 12 | 83.3% | 0 |
| March 2026 | 22 | 21 | 71.4% | 1 |
| April 2026 | 28 | 28 | 89.3% | 0 |
| May 2026 | 46 | 46 | 95.7% | 0 |
| June 2026 | 46 | 46 | 91.3% | 0 |
| July 2026 | 48 | 48 | 87.5% | 0 |