Flight profile · United Airlines
UA427
San Diego (SAN) to Newark (EWR) · scheduled 8:45 PM – 5:05 AM
How UA427 performs
943 operations, 2023-10-29 to 2026-06-30.
Source: US DOT Bureau of Transportation Statistics · 943 operations between 2023-10-29 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA427 | 82.1% | 1.80% | -9 min | 5.1% | 943 |
| United Airlines on SAN → EWR | 83.2% | 1.82% | -11 min | 6.3% | 3,783 |
| All SAN → EWR flights | 82.0% | 1.87% | -10 min | 6.9% | 4,756 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-10-29 to 2026-06-30
By day of week
Does UA427 run worse on particular days?
Tuesday is historically the most reliable day and Thursday the least, a gap of 6.7 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-10-29 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA427 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 UA427 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 943 records of UA427 operating SAN → 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.