DL457
DL457 (Delta Air Lines) is a multi-stop service on 3 routes, busiest New York to Denver. Of 600 departures recorded from October 2024 to July 2026, 75.1% left on time, according to the US BTS.
- On-time departures75.1%of 600 flights
- Average delay18.7 min
- July 202619▼ 38.7%vs July 2025
- Cancelled1.5%
- 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 | 31 | 30 | ▼ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 21 | ▼ 32.3% |
| June | 30 | 17 | ▼ 43.3% |
| July | 31 | 19 | ▼ 38.7% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 30 | – | in progress |
| November | 28 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 212 | 176 | ▼ 17.0% |
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 | 93.3% | 72.4% | ▼ 22.4% |
| February | 82.1% | 76.9% | ▼ 6.4% |
| March | 87.1% | 67.7% | ▼ 22.2% |
| April | 70.0% | 76.7% | ▲ 9.5% |
| May | 61.3% | 76.2% | ▲ 24.3% |
| June | 37.9% | 70.6% | ▲ 86.1% |
| July | 64.3% | 84.2% | ▲ 31.0% |
| August | 77.4% | – | – |
| September | 80.0% | – | – |
| October | 73.3% | – | in progress |
| November | 82.1% | – | – |
| December | 50.0% | – | – |
| Year-to-date average (Jan–Jul) | 70.9% | 75.0% | ▲ 5.8% |
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 | 1 | 0.0% |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 0 | ▼ 100.0% |
| July | 3 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 5 | 3 | ▼ 40.0% |
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 98.5% 591
- Cancelled 1.5% 9
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| JFK DEN John F. Kennedy International Airport – Denver International Airport | 2,610 | 10.5 min | 77.3% | 425 |
| JFK DTW John F. Kennedy International Airport – Detroit Metropolitan Wayne County Airport | 817 | 38.8 min | 69.6% | 174 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 80.0% | 0 |
| November 2024 | 29 | 29 | 93.1% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 31 | 30 | 93.3% | 1 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 31 | 31 | 87.1% | 0 |
| April 2025 | 30 | 30 | 70.0% | 0 |
| May 2025 | 31 | 31 | 61.3% | 0 |
| June 2025 | 30 | 29 | 37.9% | 1 |
| July 2025 | 31 | 28 | 64.3% | 3 |
| August 2025 | 31 | 31 | 77.4% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 30 | 30 | 73.3% | 0 |
| November 2025 | 28 | 28 | 82.1% | 0 |
| December 2025 | 13 | 12 | 50.0% | 1 |
| January 2026 | 30 | 29 | 72.4% | 1 |
| February 2026 | 28 | 26 | 76.9% | 2 |
| March 2026 | 31 | 31 | 67.7% | 0 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 21 | 21 | 76.2% | 0 |
| June 2026 | 17 | 17 | 70.6% | 0 |
| July 2026 | 19 | 19 | 84.2% | 0 |