Flight profile · United Airlines
UA1173
San Juan (SJU) to Newark (EWR) · scheduled 2:10 PM – 5:41 PM
How UA1173 performs
1,096 operations, 2023-07-01 to 2026-06-30.
UA1173 arrived on time 66.9% of the time, against 73.4% for all SJU → EWR flights — this specific departure is 6.5 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 8.7 points worse.
Source: US DOT Bureau of Transportation Statistics · 1,096 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1173 | 66.9% | 3.56% | 0 min | 13.6% | 1,096 |
| United Airlines on SJU → EWR | 75.6% | 2.18% | -6 min | 9.9% | 3,304 |
| All SJU → EWR flights | 73.4% | 2.07% | -4 min | 10.4% | 6,653 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA1173 run worse on particular days?
Tuesday is historically the most reliable day and Sunday the least, a gap of 14.4 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.
Data and methodology
Calculated by FlyerIntel from 1,096 records of UA1173 operating SJU → EWR, 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.