Flight profile · United Airlines
UA1392
Washington (IAD) to Boston (BOS) · scheduled 12:55 PM – 2:40 PM
How UA1392 performs
118 operations, 2026-03-05 to 2026-06-30.
UA1392 arrived on time 84.7% of the time, against 77.6% for all IAD → BOS flights — this specific departure is 7.1 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.1 points better.
Source: US DOT Bureau of Transportation Statistics · 118 operations between 2026-03-05 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1392 | 84.7% | 0.00% | -10 min | 2.5% | 118 |
| United Airlines on IAD → BOS | 77.6% | 1.48% | -5 min | 8.9% | 4,463 |
| All IAD → BOS flights | 77.6% | 1.47% | -5 min | 8.9% | 4,475 |
Source: FlyerIntel analysis of US DOT BTS data · 2026-03-05 to 2026-06-30
Other routes UA1392 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→IAH Boston to Houston | 2026-03-29 – 2026-06-30 | 91 | 68.1% |
| MSY→IAD New Orleans to Washington | 2024-03-31 – 2026-06-29 | 744 | 90.9% |
| SMF→SFO Sacramento to San Francisco | 2025-12-08 – 2025-12-15 | 2 | — |
| PIT→ORD Pittsburgh to Chicago | 2025-10-01 – 2025-10-01 | 1 | — |
| EWR→CHS Newark to Charleston | 2025-09-30 – 2025-09-30 | 1 | — |
| ORD→TVC Chicago to Traverse City | 2025-09-24 – 2025-09-24 | 1 | — |
| ROC→EWR Rochester to Newark | 2025-04-06 – 2025-04-27 | 4 | — |
| HNL→SFO Honolulu to San Francisco | 2025-03-30 – 2025-03-30 | 1 | — |
| SLC→EWR Salt Lake City to Newark | 2025-02-16 – 2025-03-02 | 3 | — |
| IAD→SFO Washington to San Francisco | 2024-10-27 – 2024-12-29 | 39 | — |
| IAD→RDU Washington to Raleigh–Durham | 2024-04-01 – 2024-05-22 | 30 | — |
| MCO→DEN Orlando to Denver | 2024-03-07 – 2024-03-30 | 18 | — |
| DEN→MCO Denver to Orlando | 2024-02-15 – 2024-03-06 | 21 | — |
| EWR→CLT Newark to Charlotte | 2023-09-05 – 2024-02-14 | 142 | 87.2% |
| MTJ→EWR Montrose to Newark | 2023-12-21 – 2024-01-08 | 19 | — |
| IAH→SEA Houston to Seattle | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1392 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 118 records of UA1392 operating IAD → 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.