Flight profile · Delta Air Lines
DL1291
Dallas–Fort Worth (DFW) to Salt Lake City (SLC) · scheduled 8:15 AM – 10:15 AM
How DL1291 performs
932 operations, 2023-07-01 to 2026-06-30.
DL1291 arrived on time 88.4% of the time, against 72.1% for all DFW → SLC flights — this specific departure is 16.2 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 5.7 points better.
Source: US DOT Bureau of Transportation Statistics · 932 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1291 | 88.4% | 1.18% | -10 min | 4.7% | 932 |
| Delta Air Lines on DFW → SLC | 82.6% | 0.89% | -7 min | 6.9% | 4,697 |
| All DFW → SLC flights | 72.1% | 1.78% | -2 min | 10.7% | 11,711 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1291 run worse on particular days?
Tuesday is historically the most reliable day and Saturday the least, a gap of 7.3 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes DL1291 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→ATL St. Louis to Atlanta | 2024-01-08 – 2024-03-09 | 62 | — |
| ATL→ROA Atlanta to Roanoke | 2023-09-05 – 2023-12-15 | 100 | 90.9% |
Because the same number has served different journeys, the statistics above describe only the route DL1291 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 932 records of DL1291 operating DFW → SLC, 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.