Flight profile · United Airlines
UA1073
Washington (IAD) to Miami (MIA) · scheduled 9:00 AM – 11:49 AM
How UA1073 performs
1,047 operations, 2023-07-01 to 2026-06-30.
UA1073 arrived on time 86.8% of the time, against 81.3% for all IAD → MIA flights — this specific departure is 5.6 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 3.5 points better.
Source: US DOT Bureau of Transportation Statistics · 1,047 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1073 | 86.8% | 1.15% | -10 min | 4.4% | 1,047 |
| United Airlines on IAD → MIA | 83.4% | 0.90% | -9 min | 5.6% | 1,547 |
| All IAD → MIA flights | 81.3% | 1.05% | -8 min | 6.4% | 1,713 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA1073 run worse on particular days?
Thursday is historically the most reliable day and Saturday 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 UA1073 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 UA1073 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 1,047 records of UA1073 operating IAD → MIA, 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.