Flight profile · Delta Air Lines
DL1540
Philadelphia (PHL) to Detroit (DTW) · scheduled 6:00 AM – 7:55 AM
How DL1540 performs
735 operations, 2024-06-07 to 2026-06-30.
DL1540 arrived on time 92.1% of the time, against 81.3% for all PHL → DTW flights — this specific departure is 10.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 6.6 points better.
Source: US DOT Bureau of Transportation Statistics · 735 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1540 | 92.1% | 1.90% | -17 min | 4.9% | 735 |
| Delta Air Lines on PHL → DTW | 85.5% | 1.34% | -15 min | 7.1% | 4,317 |
| All PHL → DTW flights | 81.3% | 2.16% | -11 min | 8.4% | 9,054 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1540 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| LGA→BOS New York to Boston | 2024-04-09 – 2024-06-06 | 51 | — |
| SLC→DFW Salt Lake City to Dallas–Fort Worth | 2024-03-10 – 2024-04-08 | 30 | — |
| MSP→MCO Minneapolis to Orlando | 2024-01-08 – 2024-03-09 | 62 | — |
| MCO→MSP Orlando to Minneapolis | 2024-01-11 – 2024-03-09 | 50 | — |
| ATL→EWR Atlanta to Newark | 2023-12-16 – 2023-12-30 | 13 | — |
| EWR→ATL Newark to Atlanta | 2023-12-16 – 2023-12-30 | 13 | — |
| MSP→VPS Minneapolis to Valparaiso | 2023-11-05 – 2023-12-12 | 17 | — |
| VPS→MSP Valparaiso to Minneapolis | 2023-11-05 – 2023-12-12 | 17 | — |
| DEN→ATL Denver to Atlanta | 2023-11-20 – 2023-11-27 | 2 | — |
| LAS→AUS Las Vegas to Austin | 2023-11-24 – 2023-11-24 | 1 | — |
| HOU→ATL Houston to Atlanta | 2023-10-09 – 2023-11-04 | 27 | — |
| PDX→SEA Portland to Seattle | 2023-09-06 – 2023-10-08 | 33 | — |
| IAH→LAX Houston to Los Angeles | 2023-07-01 – 2023-09-04 | 60 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1540 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 735 records of DL1540 operating PHL → DTW, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.