Flight profile · United Airlines
UA1783
Los Angeles (LAX) to Boston (BOS) · scheduled 8:20 AM – 4:53 PM
How UA1783 performs
734 operations, 2024-06-27 to 2026-06-30.
UA1783 arrived on time 84.5% of the time, against 80.5% for all LAX → BOS flights — this specific departure is 4.0 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 2.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 734 operations between 2024-06-27 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1783 | 84.5% | 0.41% | -12 min | 5.6% | 734 |
| United Airlines on LAX → BOS | 87.4% | 0.85% | -12 min | 4.1% | 2,243 |
| All LAX → BOS flights | 80.5% | 0.74% | -8 min | 7.2% | 13,840 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-27 to 2026-06-30
Other routes UA1783 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 |
|---|---|---|---|
| BOS→ORD Boston to Chicago | 2023-07-01 – 2026-05-18 | 235 | 73.0% |
| BOS→EWR Boston to Newark | 2024-12-20 – 2025-12-01 | 46 | — |
| DEN→LAX Denver to Los Angeles | 2025-08-01 – 2025-08-18 | 11 | — |
| EWR→JAX Newark to Jacksonville | 2024-05-23 – 2024-06-26 | 35 | — |
| IAH→SAN Houston to San Diego | 2024-05-02 – 2024-05-22 | 21 | — |
| LAX→IAH Los Angeles to Houston | 2024-03-31 – 2024-05-01 | 32 | — |
| PIT→IAD Pittsburgh to Washington | 2024-03-08 – 2024-03-30 | 23 | — |
| JAX→IAD Jacksonville to Washington | 2024-03-07 – 2024-03-07 | 1 | — |
| ORD→SAN Chicago to San Diego | 2023-12-21 – 2024-03-04 | 34 | — |
| ORD→IAH Chicago to Houston | 2023-07-01 – 2023-11-27 | 104 | 69.6% |
| EWR→BOS Newark to Boston | 2023-10-29 – 2023-11-27 | 28 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1783 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 734 records of UA1783 operating LAX → BOS, 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.