Flight profile · United Airlines
UA1997
Washington (IAD) to Newark (EWR) · scheduled 10:30 PM – 11:44 PM
How UA1997 performs
601 operations, 2024-06-27 to 2026-06-30.
UA1997 arrived on time 63.8% of the time, against 73.6% for all IAD → EWR flights — this specific departure is 9.8 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 9.2 points worse.
Source: US DOT Bureau of Transportation Statistics · 601 operations between 2024-06-27 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1997 | 63.8% | 3.83% | 5 min | 16.4% | 601 |
| United Airlines on IAD → EWR | 73.1% | 2.06% | -5 min | 11.5% | 4,031 |
| All IAD → EWR flights | 73.6% | 2.59% | -5 min | 11.5% | 4,471 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-27 to 2026-06-30
Other routes UA1997 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 |
|---|---|---|---|
| MCO→IAD Orlando to Washington | 2024-02-15 – 2026-06-30 | 533 | 71.9% |
| LAX→SFO Los Angeles to San Francisco | 2025-09-25 – 2025-10-25 | 31 | — |
| SFO→IAD San Francisco to Washington | 2025-09-25 – 2025-10-25 | 31 | — |
| EWR→STL Newark to St. Louis | 2025-04-30 – 2025-04-30 | 1 | — |
| SFO→MCO San Francisco to Orlando | 2023-07-01 – 2024-06-26 | 279 | 86.2% |
| MCO→EWR Orlando to Newark | 2023-11-28 – 2024-02-14 | 79 | — |
| PHX→SFO Phoenix to San Francisco | 2023-10-29 – 2023-11-27 | 30 | — |
| IAD→ORF Washington to Norfolk | 2023-09-29 – 2023-10-28 | 30 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1997 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 601 records of UA1997 operating IAD → 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.