Flight profile · Delta Air Lines
DL1027
Atlanta (ATL) to Burlington (BTV) · scheduled 9:30 PM – 11:59 PM
How DL1027 performs
754 operations, 2024-06-07 to 2026-06-30.
DL1027 arrived on time 76.9% of the time, against 80.0% for all ATL → BTV flights — this specific departure is 3.2 percentage points worse than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 754 operations between 2024-06-07 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| DL1027 | 76.9% | 2.12% | -2 min | 5.6% | 754 |
| Delta Air Lines on ATL → BTV | 80.0% | 1.51% | -6 min | 4.9% | 1,123 |
| All ATL → BTV flights | 80.0% | 1.51% | -6 min | 4.9% | 1,123 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30
Other routes DL1027 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 DL1027 currently operates. Blending them would produce an average of two different flights.
Why DL1027 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for DL1027 on ATL → BTV. 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 754 records of DL1027 operating ATL → BTV, 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.
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