Flight profile · Delta Air Lines
DL1678
Bozeman (BZN) to Minneapolis (MSP) · scheduled 6:00 AM – 9:30 AM
How DL1678 performs
1,046 operations, 2023-07-01 to 2026-06-30.
DL1678 arrived on time 90.9% of the time, against 87.1% for all BZN → MSP flights — this specific departure is 3.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.8 points better.
Source: US DOT Bureau of Transportation Statistics · 1,046 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1678 | 90.9% | 0.67% | -12 min | 3.7% | 1,046 |
| Delta Air Lines on BZN → MSP | 87.1% | 0.41% | -12 min | 4.2% | 2,416 |
| All BZN → MSP flights | 87.1% | 0.41% | -12 min | 4.2% | 2,416 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does DL1678 run worse on particular days?
Saturday is historically the most reliable day and Sunday the least, a gap of 8.2 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 DL1678 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 |
|---|---|---|---|
| CHS→ATL Charleston to Atlanta | 2026-02-12 – 2026-03-07 | 24 | — |
| VPS→ATL Valparaiso to Atlanta | 2026-01-19 – 2026-01-19 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route DL1678 currently operates. Blending them would produce an average of two different flights.
Why DL1678 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for DL1678 on BZN → MSP. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 1,046 records of DL1678 operating BZN → MSP, 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.