Flight profile · Delta Air Lines
DL1040
Austin (AUS) to Detroit (DTW) · scheduled 5:30 AM – 9:24 AM
How DL1040 performs
1,094 operations, 2023-07-01 to 2026-06-30.
DL1040 arrived on time 94.7% of the time, against 84.8% for all AUS → DTW flights — this specific departure is 9.9 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 9.4 points better.
Source: US DOT Bureau of Transportation Statistics · 1,094 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1040 | 94.7% | 1.10% | -13 min | 1.8% | 1,094 |
| Delta Air Lines on AUS → DTW | 85.3% | 0.86% | -10 min | 5.9% | 3,847 |
| All AUS → DTW flights | 84.8% | 0.88% | -9 min | 6.1% | 3,957 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1040 run worse on particular days?
Monday is historically the most reliable day and Sunday the least, a gap of 4.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,094 records of DL1040 operating AUS → 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.