Flight profile · United Airlines
UA1443
Washington (IAD) to Charlotte Amalie (STT) · scheduled 8:15 AM – 12:19 PM
How UA1443 performs
914 operations, 2023-07-01 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 914 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1443 | 87.9% | 0.44% | -11 min | 2.3% | 914 |
| United Airlines on IAD → STT | 88.0% | 0.53% | -11 min | 2.3% | 952 |
| All IAD → STT flights | 88.0% | 0.53% | -11 min | 2.3% | 952 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA1443 run worse on particular days?
Thursday is historically the most reliable day and Sunday the least, a gap of 5.3 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 UA1443 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 |
|---|---|---|---|
| MCO→LAX Orlando to Los Angeles | 2023-09-05 – 2023-09-28 | 24 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1443 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 914 records of UA1443 operating IAD → STT, 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.