Flight profile · United Airlines
UA2288
Raleigh–Durham (RDU) to Denver (DEN) · scheduled 4:30 PM – 6:20 PM
How UA2288 performs
526 operations, 2024-12-19 to 2026-06-30.
UA2288 arrived on time 76.3% of the time, against 80.9% for all RDU → DEN flights — this specific departure is 4.5 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 · 526 operations between 2024-12-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2288 | 76.3% | 0.19% | -4 min | 11.3% | 526 |
| United Airlines on RDU → DEN | 85.6% | 0.75% | -9 min | 5.2% | 2,536 |
| All RDU → DEN flights | 80.9% | 0.87% | -7 min | 6.5% | 5,725 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-19 to 2026-06-30
Other routes UA2288 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 |
|---|---|---|---|
| ORD→PHL Chicago to Philadelphia | 2026-03-30 – 2026-04-27 | 17 | — |
| IAD→CLE Washington to Cleveland | 2026-03-29 – 2026-03-29 | 1 | — |
| LAX→BWI Los Angeles to Baltimore | 2024-12-18 – 2024-12-18 | 1 | — |
| DEN→FSD Denver to Sioux Falls | 2024-12-03 – 2024-12-17 | 15 | — |
| RDU→IAD Raleigh–Durham to Washington | 2024-10-27 – 2024-12-02 | 37 | — |
| LAX→LAS Los Angeles to Las Vegas | 2024-09-26 – 2024-10-26 | 31 | — |
| ORD→IND Chicago to Indianapolis | 2024-06-27 – 2024-09-25 | 78 | — |
| SMF→ORD Sacramento to Chicago | 2024-08-19 – 2024-09-25 | 38 | — |
| ORD→DCA Chicago to Washington | 2024-08-17 – 2024-08-18 | 2 | — |
| IAD→ORD Washington to Chicago | 2024-05-23 – 2024-06-26 | 35 | — |
| IAH→LAS Houston to Las Vegas | 2023-07-01 – 2024-05-22 | 275 | 79.1% |
| ATL→IAH Atlanta to Houston | 2024-03-08 – 2024-03-29 | 13 | — |
| PDX→DEN Portland to Denver | 2023-12-21 – 2024-01-08 | 19 | — |
| MCO→SFO Orlando to San Francisco | 2023-09-29 – 2023-10-28 | 30 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2288 currently operates. Blending them would produce an average of two different flights.
Why UA2288 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA2288 on RDU → DEN. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 526 records of UA2288 operating RDU → DEN, 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.