Flight profile · Delta Air Lines
DL2851
Seattle (SEA) to Denver (DEN) · scheduled 7:55 PM – 11:28 PM
How DL2851 performs
559 operations, 2024-06-07 to 2026-06-30.
DL2851 arrived on time 75.3% of the time, against 78.3% for all SEA → DEN flights — this specific departure is 3.0 percentage points worse than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 559 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2851 | 75.3% | 0.89% | -8 min | 7.2% | 559 |
| Delta Air Lines on SEA → DEN | 75.8% | 0.65% | -5 min | 7.8% | 2,781 |
| All SEA → DEN flights | 78.3% | 0.77% | -5 min | 6.5% | 19,613 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL2851 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 |
|---|---|---|---|
| ATL→JAX Atlanta to Jacksonville | 2024-01-15 – 2024-05-06 | 73 | — |
| BTV→ATL Burlington to Atlanta | 2023-12-16 – 2024-01-07 | 23 | — |
| IND→DTW Indianapolis to Detroit | 2023-10-09 – 2023-12-15 | 59 | — |
| DTW→IND Detroit to Indianapolis | 2023-10-09 – 2023-12-15 | 57 | — |
| IND→ATL Indianapolis to Atlanta | 2023-09-05 – 2023-10-08 | 34 | — |
| ATL→CAE Atlanta to Columbia | 2023-07-05 – 2023-09-04 | 43 | — |
| PNS→ATL Pensacola to Atlanta | 2023-07-01 – 2023-07-08 | 2 | — |
Because the same number has served different journeys, the statistics above describe only the route DL2851 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 559 records of DL2851 operating SEA → 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.