Flight profile · Delta Air Lines
DL1553
Salt Lake City (SLC) to Denver (DEN) · scheduled 10:20 AM – 12:00 PM
How DL1553 performs
698 operations, 2024-06-07 to 2026-06-30.
DL1553 arrived on time 80.7% of the time, against 77.7% for all SLC → DEN flights — this specific departure is 3.0 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 2.0 points better.
Source: US DOT Bureau of Transportation Statistics · 698 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1553 | 80.7% | 0.43% | -8 min | 5.8% | 698 |
| Delta Air Lines on SLC → DEN | 78.6% | 0.32% | -6 min | 7.8% | 4,981 |
| All SLC → DEN flights | 77.7% | 0.64% | -6 min | 7.1% | 23,658 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1553 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 |
|---|---|---|---|
| DEN→SLC Denver to Salt Lake City | 2024-06-07 – 2026-06-30 | 498 | 82.4% |
| MSP→MEM Minneapolis to Memphis | 2026-03-08 – 2026-04-12 | 31 | — |
| JFK→ATL New York to Atlanta | 2023-07-01 – 2024-06-06 | 221 | 85.0% |
| SAN→BOS San Diego to Boston | 2024-04-09 – 2024-05-06 | 28 | — |
| SEA→SMF Seattle to Sacramento | 2024-04-08 – 2024-04-08 | 1 | — |
| ATL→EGE Atlanta to Eagle | 2024-03-10 – 2024-03-30 | 13 | — |
| EGE→ATL Eagle to Atlanta | 2024-03-10 – 2024-03-30 | 13 | — |
| MSP→BIL Minneapolis to Billings | 2024-01-08 – 2024-03-09 | 62 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1553 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 698 records of DL1553 operating SLC → DEN, 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.