DL863
DL863 (Delta Air Lines) is a multi-stop service on 3 routes, busiest New York to Salt Lake City. Of 625 departures recorded from October 2024 to July 2026, 75.7% left on time, according to the US BTS.
- On-time departures75.7%of 625 flights
- Average delay13.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.9%
- 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 | 22 | 31 | ▲ 40.9% |
| February | 25 | 28 | ▲ 12.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 28 | – | – |
| December | 14 | – | – |
| Year to date (Jan–Jul) | 200 | 212 | ▲ 6.0% |
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 | 90.0% | 63.3% | ▼ 29.6% |
| February | 88.0% | 80.8% | ▼ 8.2% |
| March | 77.4% | 76.7% | ▼ 1.0% |
| April | 76.7% | 76.7% | 0.0% |
| May | 77.4% | 67.7% | ▼ 12.5% |
| June | 56.7% | 83.3% | ▲ 47.0% |
| July | 58.6% | 75.0% | ▲ 27.9% |
| August | 80.7% | – | – |
| September | 90.0% | – | – |
| October | 80.7% | – | in progress |
| November | 85.7% | – | – |
| December | 100.0% | – | – |
| Year-to-date average (Jan–Jul) | 75.0% | 74.8% | ▼ 0.2% |
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 | 2 | 1 | ▼ 50.0% |
| February | 0 | 2 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 3 | ▲ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 1 | – | – |
| Year to date (Jan–Jul) | 4 | 7 | ▲ 75.0% |
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 98.1% 613
- Cancelled 1.9% 12
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 |
|---|---|---|---|---|
| JFK SLC John F. Kennedy International Airport – Salt Lake City International Airport | 3,194 | 14.4 min | 74.7% | 581 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 70.0% | 0 |
| November 2024 | 28 | 28 | 75.0% | 0 |
| December 2024 | 31 | 31 | 54.8% | 0 |
| January 2025 | 22 | 20 | 90.0% | 2 |
| February 2025 | 25 | 25 | 88.0% | 0 |
| March 2025 | 31 | 31 | 77.4% | 0 |
| April 2025 | 30 | 30 | 76.7% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 30 | 30 | 56.7% | 0 |
| July 2025 | 31 | 29 | 58.6% | 2 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 90.0% | 0 |
| October 2025 | 31 | 31 | 80.7% | 0 |
| November 2025 | 28 | 28 | 85.7% | 0 |
| December 2025 | 14 | 13 | 100.0% | 1 |
| January 2026 | 31 | 30 | 63.3% | 1 |
| February 2026 | 28 | 26 | 80.8% | 2 |
| March 2026 | 31 | 30 | 76.7% | 1 |
| April 2026 | 30 | 30 | 76.7% | 0 |
| May 2026 | 31 | 31 | 67.7% | 0 |
| June 2026 | 30 | 30 | 83.3% | 0 |
| July 2026 | 31 | 28 | 75.0% | 3 |