Flight profile · United Airlines
UA489
Denver (DEN) to Houston (IAH) · scheduled 3:40 PM – 7:10 PM
How UA489 performs
934 operations, 2023-07-01 to 2026-06-30.
UA489 arrived on time 71.3% of the time, against 76.9% for all DEN → IAH flights — this specific departure is 5.6 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 6.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 934 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA489 | 71.3% | 0.32% | 1 min | 11.4% | 934 |
| United Airlines on DEN → IAH | 77.3% | 0.78% | -4 min | 8.1% | 11,445 |
| All DEN → IAH flights | 76.9% | 0.83% | -5 min | 8.2% | 14,528 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA489 run worse on particular days?
Tuesday is historically the most reliable day and Thursday the least, a gap of 10.5 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA489 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 |
|---|---|---|---|
| SNA→DEN Santa Ana to Denver | 2023-12-21 – 2026-06-30 | 179 | 93.3% |
| IAH→MCO Houston to Orlando | 2026-03-05 – 2026-03-28 | 21 | — |
| IAH→STL Houston to St. Louis | 2026-02-12 – 2026-03-04 | 21 | — |
| IAH→OMA Houston to Omaha | 2025-10-26 – 2025-12-01 | 37 | — |
| PHL→DEN Philadelphia to Denver | 2025-10-26 – 2025-12-01 | 36 | — |
| MSP→DEN Minneapolis to Denver | 2024-03-07 – 2025-10-24 | 65 | — |
| IAH→DTW Houston to Detroit | 2025-08-01 – 2025-08-18 | 18 | — |
| PHX→DEN Phoenix to Denver | 2024-09-26 – 2025-08-17 | 206 | 85.4% |
| IAH→JAX Houston to Jacksonville | 2025-05-22 – 2025-07-31 | 44 | — |
| IAH→TPA Houston to Tampa | 2025-05-01 – 2025-05-20 | 20 | — |
| COS→ORD Colorado Springs to Chicago | 2024-09-03 – 2024-09-25 | 23 | — |
| EWR→BZN Newark to Bozeman | 2024-08-19 – 2024-09-02 | 15 | — |
| SEA→DEN Seattle to Denver | 2023-09-05 – 2024-08-18 | 112 | 84.3% |
| IAH→BNA Houston to Nashville | 2023-08-01 – 2024-08-18 | 84 | — |
| SAN→DEN San Diego to Denver | 2024-02-15 – 2024-03-06 | 21 | — |
| LAS→ORD Las Vegas to Chicago | 2023-11-01 – 2023-11-27 | 27 | — |
| LAX→DEN Los Angeles to Denver | 2023-08-01 – 2023-10-31 | 38 | — |
Because the same number has served different journeys, the statistics above describe only the route UA489 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 934 records of UA489 operating DEN → IAH, 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.