Flight profile · Delta Air Lines
DL871
Salt Lake City (SLC) to Seattle (SEA) · scheduled 5:10 PM – 6:24 PM
How DL871 performs
699 operations, 2024-06-07 to 2026-06-30.
DL871 arrived on time 85.2% of the time, against 81.0% for all SLC → SEA flights — this specific departure is 4.2 percentage points better than the route as a whole.
Source: US DOT Bureau of Transportation Statistics · 699 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL871 | 85.2% | 0.29% | -10 min | 4.0% | 699 |
| Delta Air Lines on SLC → SEA | 84.9% | 0.38% | -9 min | 3.7% | 6,615 |
| All SLC → SEA flights | 81.0% | 0.69% | -7 min | 4.1% | 11,934 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL871 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 |
|---|---|---|---|
| CVG→ATL Cincinnati / Covington to Atlanta | 2024-05-07 – 2024-06-06 | 26 | — |
| ATL→ROC Atlanta to Rochester | 2024-05-11 – 2024-06-01 | 5 | — |
| ROC→ATL Rochester to Atlanta | 2024-05-11 – 2024-06-01 | 5 | — |
| MYR→ATL Myrtle Beach to Atlanta | 2024-04-09 – 2024-05-06 | 28 | — |
| SFO→ATL San Francisco to Atlanta | 2023-11-05 – 2024-04-08 | 94 | 88.3% |
| PHX→ATL Phoenix to Atlanta | 2024-02-15 – 2024-03-08 | 23 | — |
| ATL→PBI Atlanta to West Palm Beach | 2023-10-28 – 2023-11-04 | 8 | — |
| ABQ→LAX Albuquerque to Los Angeles | 2023-10-12 – 2023-10-16 | 5 | — |
| ORD→MSP Chicago to Minneapolis | 2023-09-05 – 2023-10-08 | 34 | — |
| ATL→SEA Atlanta to Seattle | 2023-07-10 – 2023-09-04 | 57 | — |
| DFW→LAX Dallas–Fort Worth to Los Angeles | 2023-07-01 – 2023-07-09 | 9 | — |
| LAX→DFW Los Angeles to Dallas–Fort Worth | 2023-07-01 – 2023-07-09 | 9 | — |
Because the same number has served different journeys, the statistics above describe only the route DL871 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 699 records of DL871 operating SLC → SEA, 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.