Flight profile · Delta Air Lines
DL956
Atlanta (ATL) to Denver (DEN) · scheduled 10:30 PM – 11:49 PM
How DL956 performs
757 operations, 2023-07-01 to 2026-06-30.
DL956 arrived on time 71.5% of the time, against 77.2% for all ATL → DEN flights — this specific departure is 5.7 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 6.6 points worse.
Source: US DOT Bureau of Transportation Statistics · 757 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL956 | 71.5% | 1.72% | -1 min | 6.9% | 757 |
| Delta Air Lines on ATL → DEN | 78.1% | 0.86% | -4 min | 5.9% | 8,490 |
| All ATL → DEN flights | 77.2% | 0.93% | -4 min | 7.2% | 17,571 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes DL956 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 |
|---|---|---|---|
| ORF→ATL Norfolk to Atlanta | 2025-01-06 – 2025-03-07 | 51 | — |
| ATL→ORF Atlanta to Norfolk | 2025-01-20 – 2025-03-07 | 39 | — |
| SLC→BNA Salt Lake City to Nashville | 2024-01-18 – 2024-03-08 | 15 | — |
| ATL→DAB Atlanta to Daytona Beach | 2024-02-19 – 2024-02-19 | 1 | — |
| DAB→ATL Daytona Beach to Atlanta | 2024-02-19 – 2024-02-19 | 1 | — |
| DTW→BWI Detroit to Baltimore | 2023-11-23 – 2023-11-24 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route DL956 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 757 records of DL956 operating ATL → 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.