Flight profile · Delta Air Lines
DL1492
St. Louis (STL) to Salt Lake City (SLC) · scheduled 5:00 PM – 8:25 PM
How DL1492 performs
455 operations, 2025-01-07 to 2026-06-30.
DL1492 arrived on time 85.0% of the time, against 88.9% for all STL → SLC flights — this specific departure is 3.9 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 4.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 455 operations between 2025-01-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1492 | 85.0% | 1.54% | -9 min | 6.1% | 455 |
| Delta Air Lines on STL → SLC | 89.2% | 0.66% | -11 min | 4.1% | 2,881 |
| All STL → SLC flights | 88.9% | 0.65% | -11 min | 4.1% | 2,923 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-01-07 to 2026-06-30
Other routes DL1492 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 |
|---|---|---|---|
| SLC→STL Salt Lake City to St. Louis | 2025-01-07 – 2026-06-30 | 280 | 81.9% |
| DTW→MCO Detroit to Orlando | 2024-06-07 – 2026-01-04 | 176 | 56.1% |
| MSP→DFW Minneapolis to Dallas–Fort Worth | 2024-12-10 – 2024-12-10 | 1 | — |
| ATL→JAN Atlanta to Jackson | 2024-09-09 – 2024-10-06 | 28 | — |
| JAN→ATL Jackson to Atlanta | 2024-09-09 – 2024-10-06 | 28 | — |
| SLC→ORD Salt Lake City to Chicago | 2023-07-01 – 2024-06-06 | 167 | 74.1% |
| ORD→SLC Chicago to Salt Lake City | 2023-07-01 – 2024-06-06 | 150 | 72.3% |
| MCO→BOS Orlando to Boston | 2024-05-11 – 2024-06-01 | 5 | — |
| JFK→TPA New York to Tampa | 2024-04-09 – 2024-05-06 | 28 | — |
| MSP→FAR Minneapolis to Fargo | 2024-01-08 – 2024-03-09 | 62 | — |
| MSP→DCA Minneapolis to Washington | 2023-09-16 – 2023-11-04 | 8 | — |
| AUS→JFK Austin to New York | 2023-09-05 – 2023-09-15 | 11 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1492 currently operates. Blending them would produce an average of two different flights.
Why DL1492 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL1492 on STL → SLC. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on STL → SLC
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| DL2363 | Delta Air Lines | 92.2% | 12 min early | 754 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 455 records of DL1492 operating STL → 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.