DL1577
DL1577 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Atlanta to Memphis. Of 431 departures recorded from October 2024 to July 2026, 74.1% left on time, according to the US BTS.
- On-time departures74.1%of 431 flights
- Average delay16.6 min
- July 202616▲ 6.7%vs July 2025
- Cancelled1.4%
- 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 | 29 | 24 | ▼ 17.2% |
| February | 28 | 23 | ▼ 17.9% |
| March | 28 | 21 | ▼ 25.0% |
| April | 26 | 17 | ▼ 34.6% |
| May | 25 | 18 | ▼ 28.0% |
| June | 18 | 15 | ▼ 16.7% |
| July | 15 | 16 | ▲ 6.7% |
| August | 15 | – | – |
| September | 13 | – | – |
| October | 16 | – | in progress |
| November | 22 | – | – |
| December | 25 | – | – |
| Year to date (Jan–Jul) | 169 | 134 | ▼ 20.7% |
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 | 75.0% | 77.3% | ▲ 3.0% |
| February | 82.1% | 87.0% | ▲ 5.9% |
| March | 78.6% | 71.4% | ▼ 9.1% |
| April | 80.8% | 93.8% | ▲ 16.1% |
| May | 64.0% | 66.7% | ▲ 4.2% |
| June | 52.9% | 60.0% | ▲ 13.3% |
| July | 50.0% | 31.3% | ▼ 37.5% |
| August | 93.3% | – | – |
| September | 100.0% | – | – |
| October | 93.8% | – | in progress |
| November | 86.4% | – | – |
| December | 72.0% | – | – |
| Year-to-date average (Jan–Jul) | 69.1% | 69.6% | ▲ 0.8% |
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 | 1 | 2 | ▲ 100.0% |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 1 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 3 | 0.0% |
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 98.6% 425
- Cancelled 1.4% 6
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL MEM Hartsfield Jackson Atlanta International Airport – Frederick W. Smith International Airport | 533 | 16.7 min | 73.9% | 428 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 8 | 8 | 62.5% | 0 |
| November 2024 | 11 | 11 | 72.7% | 0 |
| December 2024 | 18 | 18 | 61.1% | 0 |
| January 2025 | 29 | 28 | 75.0% | 1 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 28 | 28 | 78.6% | 0 |
| April 2025 | 26 | 26 | 80.8% | 0 |
| May 2025 | 25 | 25 | 64.0% | 0 |
| June 2025 | 18 | 17 | 52.9% | 1 |
| July 2025 | 15 | 14 | 50.0% | 1 |
| August 2025 | 15 | 15 | 93.3% | 0 |
| September 2025 | 13 | 13 | 100.0% | 0 |
| October 2025 | 16 | 16 | 93.8% | 0 |
| November 2025 | 22 | 22 | 86.4% | 0 |
| December 2025 | 25 | 25 | 72.0% | 0 |
| January 2026 | 24 | 22 | 77.3% | 2 |
| February 2026 | 23 | 23 | 87.0% | 0 |
| March 2026 | 21 | 21 | 71.4% | 0 |
| April 2026 | 17 | 16 | 93.8% | 1 |
| May 2026 | 18 | 18 | 66.7% | 0 |
| June 2026 | 15 | 15 | 60.0% | 0 |
| July 2026 | 16 | 16 | 31.3% | 0 |