DL548
DL548 (Delta Air Lines) is a multi-stop service on 8 routes, busiest Phoenix to New York. Of 479 departures recorded from October 2024 to July 2026, 85.1% left on time, according to the US BTS.
- On-time departures85.1%of 479 flights
- Average delay11.6 min
- July 202622▲ 4.8%vs July 2025
- Cancelled2.1%
- Legs flown under this number8
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 | 30 | 30 | 0.0% |
| February | 28 | 28 | 0.0% |
| March | 25 | 21 | ▼ 16.0% |
| April | 19 | 27 | ▲ 42.1% |
| May | 25 | 21 | ▼ 16.0% |
| June | 24 | 17 | ▼ 29.2% |
| July | 21 | 22 | ▲ 4.8% |
| August | 19 | – | – |
| September | 17 | – | – |
| October | 18 | – | in progress |
| November | 16 | – | – |
| December | 21 | – | – |
| Year to date (Jan–Jul) | 172 | 166 | ▼ 3.5% |
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 | 69.0% | 82.1% | ▲ 19.1% |
| February | 74.1% | 88.9% | ▲ 20.0% |
| March | 84.0% | 79.0% | ▼ 6.0% |
| April | 79.0% | 81.5% | ▲ 3.2% |
| May | 96.0% | 95.2% | ▼ 0.8% |
| June | 83.3% | 88.2% | ▲ 5.9% |
| July | 94.7% | 86.4% | ▼ 8.8% |
| August | 94.7% | – | – |
| September | 70.6% | – | – |
| October | 77.8% | – | in progress |
| November | 93.3% | – | – |
| December | 85.7% | – | – |
| Year-to-date average (Jan–Jul) | 82.9% | 85.9% | ▲ 3.7% |
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 | 2 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 5 | ▲ 25.0% |
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 97.9% 469
- Cancelled 2.1% 10
Share of all recorded flights in the period, all legs. · Oct 13, 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 |
|---|---|---|---|---|
| PHX JFK Phoenix Sky Harbor International Airport – John F. Kennedy International Airport | 3,458 | 9.3 min | 87.0% | 335 |
| DFW LGA Dallas Fort Worth International Airport – LaGuardia Airport | 2,231 | 21.6 min | 73.4% | 66 |
| ATL ILM Hartsfield Jackson Atlanta International Airport – Wilmington International Airport | 606 | 11.8 min | 86.4% | 62 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 11 | 11 | 100.0% | 0 |
| November 2024 | 19 | 19 | 89.5% | 0 |
| December 2024 | 20 | 20 | 95.0% | 0 |
| January 2025 | 30 | 29 | 69.0% | 1 |
| February 2025 | 28 | 27 | 74.1% | 1 |
| March 2025 | 25 | 25 | 84.0% | 0 |
| April 2025 | 19 | 19 | 79.0% | 0 |
| May 2025 | 25 | 25 | 96.0% | 0 |
| June 2025 | 24 | 24 | 83.3% | 0 |
| July 2025 | 21 | 19 | 94.7% | 2 |
| August 2025 | 19 | 19 | 94.7% | 0 |
| September 2025 | 17 | 17 | 70.6% | 0 |
| October 2025 | 18 | 18 | 77.8% | 0 |
| November 2025 | 16 | 15 | 93.3% | 1 |
| December 2025 | 21 | 21 | 85.7% | 0 |
| January 2026 | 30 | 28 | 82.1% | 2 |
| February 2026 | 28 | 27 | 88.9% | 1 |
| March 2026 | 21 | 19 | 79.0% | 2 |
| April 2026 | 27 | 27 | 81.5% | 0 |
| May 2026 | 21 | 21 | 95.2% | 0 |
| June 2026 | 17 | 17 | 88.2% | 0 |
| July 2026 | 22 | 22 | 86.4% | 0 |