Flight profile · Delta Air Lines
DL1340
Salt Lake City (SLC) to Billings (BIL) · scheduled 9:05 PM – 10:29 PM
How DL1340 performs
462 operations, 2025-03-26 to 2026-06-30.
DL1340 arrived on time 81.5% of the time, against 89.2% for all SLC → BIL flights — this specific departure is 7.7 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 2.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 462 operations between 2025-03-26 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1340 | 81.5% | 0.43% | -8 min | 6.7% | 462 |
| Delta Air Lines on SLC → BIL | 84.4% | 0.54% | -9 min | 5.3% | 1,107 |
| All SLC → BIL flights | 89.2% | 0.38% | -9 min | 3.3% | 3,152 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-03-26 to 2026-06-30
Other routes DL1340 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.
Because the same number has served different journeys, the statistics above describe only the route DL1340 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 462 records of DL1340 operating SLC → BIL, 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.