Flight profile · Delta Air Lines
DL2455
Salt Lake City (SLC) to St. Louis (STL) · scheduled 9:35 AM – 1:30 PM
How DL2455 performs
657 operations, 2024-06-07 to 2026-06-30.
DL2455 arrived on time 87.4% of the time, against 84.2% for all SLC → STL flights — this specific departure is 3.3 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.4 points better.
Source: US DOT Bureau of Transportation Statistics · 657 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2455 | 87.4% | 0.15% | -9 min | 3.2% | 657 |
| Delta Air Lines on SLC → STL | 84.1% | 0.42% | -9 min | 5.4% | 2,881 |
| All SLC → STL flights | 84.2% | 0.41% | -9 min | 5.3% | 2,923 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL2455 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 |
|---|---|---|---|
| STL→SLC St. Louis to Salt Lake City | 2024-06-07 – 2026-06-30 | 537 | 88.6% |
| DTW→MEM Detroit to Memphis | 2026-02-21 – 2026-03-07 | 3 | — |
| PHL→DTW Philadelphia to Detroit | 2023-07-01 – 2024-06-06 | 252 | 94.0% |
| SLC→PHX Salt Lake City to Phoenix | 2024-04-09 – 2024-05-06 | 28 | — |
| SEA→ORD Seattle to Chicago | 2024-01-08 – 2024-03-09 | 62 | — |
| ORD→SEA Chicago to Seattle | 2024-01-15 – 2024-03-08 | 32 | — |
Because the same number has served different journeys, the statistics above describe only the route DL2455 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 657 records of DL2455 operating SLC → STL, 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.