Flight profile · United Airlines
UA2025
Washington (IAD) to San Juan (SJU) · scheduled 5:32 PM – 10:22 PM
How UA2025 performs
433 operations, 2023-07-01 to 2026-06-30.
UA2025 arrived on time 73.1% of the time, against 81.0% for all IAD → SJU flights — this specific departure is 8.0 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 10.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 433 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2025 | 73.1% | 0.23% | -3 min | 8.1% | 433 |
| United Airlines on IAD → SJU | 83.6% | 0.46% | -7 min | 4.4% | 1,517 |
| All IAD → SJU flights | 81.0% | 0.56% | -7 min | 5.7% | 1,621 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
Other routes UA2025 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 |
|---|---|---|---|
| DFW→DEN Dallas–Fort Worth to Denver | 2025-09-25 – 2025-10-25 | 31 | — |
| SFO→DEN San Francisco to Denver | 2025-08-19 – 2025-09-24 | 37 | — |
| DEN→MKE Denver to Milwaukee | 2025-08-20 – 2025-09-24 | 25 | — |
| IAD→SMF Washington to Sacramento | 2025-05-01 – 2025-05-21 | 21 | — |
| PHX→ORD Phoenix to Chicago | 2024-10-27 – 2024-12-18 | 50 | — |
| IAH→DCA Houston to Washington | 2024-09-26 – 2024-10-26 | 31 | — |
| PHX→IAH Phoenix to Houston | 2024-08-20 – 2024-09-25 | 37 | — |
| LAX→DEN Los Angeles to Denver | 2024-05-02 – 2024-05-22 | 21 | — |
| SFO→OGG San Francisco to Kahului | 2023-09-29 – 2024-03-30 | 131 | 86.0% |
| ORD→ICT Chicago to Wichita | 2024-01-09 – 2024-02-14 | 37 | — |
| SFO→PHX San Francisco to Phoenix | 2023-12-23 – 2023-12-30 | 2 | — |
| ORD→CMH Chicago to Columbus | 2023-12-14 – 2023-12-20 | 7 | — |
| BOS→ORD Boston to Chicago | 2023-10-29 – 2023-10-29 | 1 | — |
| IAH→PIT Houston to Pittsburgh | 2023-09-05 – 2023-09-28 | 24 | — |
| PIT→ORD Pittsburgh to Chicago | 2023-09-05 – 2023-09-28 | 24 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2025 currently operates. Blending them would produce an average of two different flights.
Why UA2025 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA2025 on IAD → SJU. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on IAD → SJU
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA2021 | United Airlines | 88.4% | 9 min early | 1,043 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 433 records of UA2025 operating IAD → SJU, 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.