Flight profile · Delta Air Lines
DL2173
Boise (BOI) to Salt Lake City (SLC) · scheduled 6:00 AM – 7:30 AM
How DL2173 performs
1,090 operations, 2023-07-01 to 2026-06-27.
Source: US DOT Bureau of Transportation Statistics · 1,090 operations between 2023-07-01 to 2026-06-27
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL2173 | 88.7% | 0.73% | -8 min | 3.7% | 1,090 |
| Delta Air Lines on BOI → SLC | 88.8% | 0.67% | -11 min | 4.4% | 4,298 |
| All BOI → SLC flights | 89.4% | 0.59% | -12 min | 4.1% | 5,070 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-27
By day of week
Does DL2173 run worse on particular days?
Saturday is historically the most reliable day and Monday the least, a gap of 9.1 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-27 · Days with fewer than 120 operations are not scored.
Data and methodology
Calculated by FlyerIntel from 1,090 records of DL2173 operating BOI → 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.