Flight profile · Delta Air Lines
DL1585
Atlanta (ATL) to Houston (IAH) · scheduled 7:05 AM – 8:43 AM
How DL1585 performs
912 operations, 2023-09-05 to 2026-06-30.
DL1585 arrived on time 85.0% of the time, against 75.7% for all ATL → IAH flights — this specific departure is 9.3 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 8.4 points better.
Source: US DOT Bureau of Transportation Statistics · 912 operations between 2023-09-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1585 | 85.0% | 1.86% | -4 min | 1.9% | 912 |
| Delta Air Lines on ATL → IAH | 76.6% | 1.49% | -2 min | 7.0% | 7,119 |
| All ATL → IAH flights | 75.7% | 1.65% | -3 min | 8.7% | 13,939 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30
By day of week
Does DL1585 run worse on particular days?
Tuesday is historically the most reliable day and Wednesday the least, a gap of 5.9 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-09-05 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes DL1585 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 DL1585 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 912 records of DL1585 operating ATL → IAH, 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.