Flight profile · Delta Air Lines
DL1231
New York (LGA) to Detroit (DTW) · scheduled 6:00 AM – 7:55 AM
How DL1231 performs
754 operations, 2024-06-07 to 2026-06-30.
DL1231 arrived on time 94.1% of the time, against 81.0% for all LGA → DTW flights — this specific departure is 13.1 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 12.8 points better.
Source: US DOT Bureau of Transportation Statistics · 754 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1231 | 94.1% | 3.71% | -11 min | 1.7% | 754 |
| Delta Air Lines on LGA → DTW | 81.3% | 1.94% | -11 min | 8.0% | 5,931 |
| All LGA → DTW flights | 81.0% | 2.93% | -11 min | 8.3% | 12,232 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1231 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.
Because the same number has served different journeys, the statistics above describe only the route DL1231 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 754 records of DL1231 operating LGA → 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.