DL525
DL525 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Atlanta to New York. Of 607 departures recorded from October 2024 to July 2026, 76.2% left on time, according to the US BTS.
- On-time departures76.2%of 607 flights
- Average delay12.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.7%
- Legs flown under this number3
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 | 26 | 29 | ▲ 11.5% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 29 | 26 | ▼ 10.3% |
| May | 27 | 26 | ▼ 3.7% |
| June | 29 | 29 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 27 | – | – |
| October | 30 | – | in progress |
| November | 30 | – | – |
| December | 22 | – | – |
| Year to date (Jan–Jul) | 201 | 200 | ▼ 0.5% |
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 | 56.0% | 92.6% | ▲ 65.3% |
| February | 74.1% | 74.1% | 0.0% |
| March | 80.7% | 86.7% | ▲ 7.5% |
| April | 75.9% | 84.6% | ▲ 11.5% |
| May | 66.7% | 69.2% | ▲ 3.8% |
| June | 51.7% | 82.8% | ▲ 60.0% |
| July | 64.5% | 72.4% | ▲ 12.2% |
| August | 74.2% | – | – |
| September | 85.2% | – | – |
| October | 80.0% | – | in progress |
| November | 76.7% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 67.1% | 80.3% | ▲ 19.8% |
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 | 1 | 1 | 0.0% |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 2 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 2 | 6 | ▲ 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 98.4% 597
- Cancelled 1.6% 10
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL LGA Hartsfield Jackson Atlanta International Airport – LaGuardia Airport | 1,225 | 12.5 min | 76.0% | 602 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 90.0% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 18 | 18 | 83.3% | 0 |
| January 2025 | 26 | 25 | 56.0% | 1 |
| February 2025 | 28 | 27 | 74.1% | 1 |
| March 2025 | 31 | 31 | 80.7% | 0 |
| April 2025 | 29 | 29 | 75.9% | 0 |
| May 2025 | 27 | 27 | 66.7% | 0 |
| June 2025 | 29 | 29 | 51.7% | 0 |
| July 2025 | 31 | 31 | 64.5% | 0 |
| August 2025 | 31 | 31 | 74.2% | 0 |
| September 2025 | 27 | 27 | 85.2% | 0 |
| October 2025 | 30 | 30 | 80.0% | 0 |
| November 2025 | 30 | 30 | 76.7% | 0 |
| December 2025 | 22 | 20 | 70.0% | 2 |
| January 2026 | 29 | 27 | 92.6% | 2 |
| February 2026 | 28 | 27 | 74.1% | 1 |
| March 2026 | 31 | 30 | 86.7% | 1 |
| April 2026 | 26 | 26 | 84.6% | 0 |
| May 2026 | 26 | 26 | 69.2% | 0 |
| June 2026 | 29 | 29 | 82.8% | 0 |
| July 2026 | 31 | 29 | 72.4% | 2 |