DL424
DL424 (Delta Air Lines) is a multi-stop service on 13 routes, busiest New York to Denver. Of 631 departures recorded from October 2024 to July 2026, 76.8% left on time, according to the US BTS.
- On-time departures76.8%of 631 flights
- Average delay18.2 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.4%
- Legs flown under this number13
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 | 20 | 31 | ▲ 55.0% |
| February | 18 | 28 | ▲ 55.6% |
| March | 27 | 49 | ▲ 81.5% |
| April | 30 | 40 | ▲ 33.3% |
| May | 31 | 30 | ▼ 3.2% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 27 | – | – |
| October | 30 | – | in progress |
| November | 28 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 187 | 239 | ▲ 27.8% |
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 | 70.0% | 83.3% | ▲ 19.0% |
| February | 83.3% | 96.2% | ▲ 15.4% |
| March | 92.6% | 82.6% | ▼ 10.8% |
| April | 90.0% | 85.0% | ▼ 5.6% |
| May | 83.9% | 90.0% | ▲ 7.3% |
| June | 56.7% | 83.3% | ▲ 47.0% |
| July | 48.2% | 53.6% | ▲ 11.3% |
| August | 66.7% | – | – |
| September | 81.5% | – | – |
| October | 66.7% | – | in progress |
| November | 67.9% | – | – |
| December | 63.3% | – | – |
| Year-to-date average (Jan–Jul) | 74.9% | 82.0% | ▲ 9.4% |
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 | 3 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 4 | 3 | ▼ 25.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 9 | ▲ 125.0% |
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 97.6% 616
- Cancelled 2.4% 15
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JFK DEN John F. Kennedy International Airport – Denver International Airport | 2,610 | 23.8 min | 70.4% | 399 |
| ILM ATL Wilmington International Airport – Hartsfield Jackson Atlanta International Airport | 606 | 10.8 min | 93.1% | 62 |
| DEN JFK Denver International Airport – John F. Kennedy International Airport | 2,610 | -0.3 min | 91.4% | 36 |
| SEA CVG Seattle–Tacoma International Airport – Cincinnati Northern Kentucky International Airport | 3,154 | 9.5 min | 80.6% | 36 |
| IAH MSP George Bush Intercontinental Airport – Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | 1,667 | 8.4 min | 88.9% | 36 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 18 | 18 | 83.3% | 0 |
| November 2024 | 18 | 18 | 83.3% | 0 |
| December 2024 | 22 | 22 | 77.3% | 0 |
| January 2025 | 20 | 20 | 70.0% | 0 |
| February 2025 | 18 | 18 | 83.3% | 0 |
| March 2025 | 27 | 27 | 92.6% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 83.9% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 31 | 27 | 48.2% | 4 |
| August 2025 | 31 | 30 | 66.7% | 1 |
| September 2025 | 27 | 27 | 81.5% | 0 |
| October 2025 | 30 | 30 | 66.7% | 0 |
| November 2025 | 28 | 28 | 67.9% | 0 |
| December 2025 | 31 | 30 | 63.3% | 1 |
| January 2026 | 31 | 30 | 83.3% | 1 |
| February 2026 | 28 | 26 | 96.2% | 2 |
| March 2026 | 49 | 46 | 82.6% | 3 |
| April 2026 | 40 | 40 | 85.0% | 0 |
| May 2026 | 30 | 30 | 90.0% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 28 | 53.6% | 3 |