Flight profile · Delta Air Lines
DL1532
Houston (IAH) to Salt Lake City (SLC) · scheduled 12:00 PM – 1:30 PM
How DL1532 performs
899 operations, 2023-07-01 to 2026-06-30.
DL1532 arrived on time 83.4% of the time, against 81.7% for all IAH → SLC flights — this specific departure is 1.7 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 899 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1532 | 83.4% | 0.33% | -11 min | 6.0% | 899 |
| Delta Air Lines on IAH → SLC | 83.1% | 0.49% | -10 min | 7.0% | 3,073 |
| All IAH → SLC flights | 81.7% | 0.78% | -8 min | 7.3% | 5,909 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1532 run worse on particular days?
Tuesday is historically the most reliable day and Wednesday the least, a gap of 5.4 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.
Other routes DL1532 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→DCA New York to Washington | 2026-06-13 – 2026-06-27 | 3 | — |
| SLC→IAH Salt Lake City to Houston | 2026-06-17 – 2026-06-17 | 1 | — |
| ATL→OMA Atlanta to Omaha | 2024-05-11 – 2024-06-01 | 5 | — |
| SLC→LAX Salt Lake City to Los Angeles | 2024-01-08 – 2024-03-09 | 62 | — |
| AUS→MCO Austin to Orlando | 2023-11-05 – 2023-12-06 | 31 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1532 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 899 records of DL1532 operating IAH → SLC, 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.