DL1523
DL1523 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Orlando to New York. Of 632 departures recorded from October 2024 to July 2026, 95.1% left on time, according to the US BTS.
- On-time departures95.1%of 632 flights
- Average delay-1.0 min
- July 202648▲ 54.8%vs July 2025
- Cancelled2.7%
- Legs flown under this number4
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 | 22 | 27 | ▲ 22.7% |
| February | 23 | 28 | ▲ 21.7% |
| March | 29 | 31 | ▲ 6.9% |
| April | 30 | 30 | 0.0% |
| May | 31 | 46 | ▲ 48.4% |
| June | 30 | 46 | ▲ 53.3% |
| July | 31 | 48 | ▲ 54.8% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 19 | – | – |
| Year to date (Jan–Jul) | 196 | 256 | ▲ 30.6% |
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 | 100.0% | 96.0% | ▼ 4.0% |
| February | 95.7% | 92.3% | ▼ 3.5% |
| March | 96.6% | 92.6% | ▼ 4.1% |
| April | 100.0% | 96.7% | ▼ 3.3% |
| May | 96.8% | 90.7% | ▼ 6.3% |
| June | 93.3% | 86.4% | ▼ 7.5% |
| July | 96.7% | 93.8% | ▼ 3.0% |
| August | 100.0% | – | – |
| September | 100.0% | – | – |
| October | 93.3% | – | in progress |
| November | 96.6% | – | – |
| December | 94.7% | – | – |
| Year-to-date average (Jan–Jul) | 97.0% | 92.6% | ▼ 4.5% |
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 | 2 | – |
| February | 0 | 2 | – |
| March | 0 | 4 | – |
| April | 0 | 0 | – |
| May | 0 | 3 | – |
| June | 0 | 2 | – |
| July | 1 | 0 | ▼ 100.0% |
| August | 2 | – | – |
| September | 0 | – | – |
| October | 1 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 13 | ▲ 1,200.0% |
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 97.3% 615
- Cancelled 2.7% 17
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
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MCO LGA Orlando International Airport – LaGuardia Airport | 1,531 | -1.7 min | 96.3% | 494 |
| SDF ATL Louisville Muhammad Ali International Airport – Hartsfield Jackson Atlanta International Airport | 518 | 1.4 min | 93.9% | 67 |
| ATL SDF Hartsfield Jackson Atlanta International Airport – Louisville Muhammad Ali International Airport | 518 | 2.6 min | 87.5% | 67 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 4 | 4 | 100.0% | 0 |
| November 2024 | 18 | 18 | 100.0% | 0 |
| December 2024 | 18 | 18 | 94.4% | 0 |
| January 2025 | 22 | 22 | 100.0% | 0 |
| February 2025 | 23 | 23 | 95.7% | 0 |
| March 2025 | 29 | 29 | 96.6% | 0 |
| April 2025 | 30 | 30 | 100.0% | 0 |
| May 2025 | 31 | 31 | 96.8% | 0 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 30 | 96.7% | 1 |
| August 2025 | 31 | 29 | 100.0% | 2 |
| September 2025 | 30 | 30 | 100.0% | 0 |
| October 2025 | 31 | 30 | 93.3% | 1 |
| November 2025 | 29 | 29 | 96.6% | 0 |
| December 2025 | 19 | 19 | 94.7% | 0 |
| January 2026 | 27 | 25 | 96.0% | 2 |
| February 2026 | 28 | 26 | 92.3% | 2 |
| March 2026 | 31 | 27 | 92.6% | 4 |
| April 2026 | 30 | 30 | 96.7% | 0 |
| May 2026 | 46 | 43 | 90.7% | 3 |
| June 2026 | 46 | 44 | 86.4% | 2 |
| July 2026 | 48 | 48 | 93.8% | 0 |