Flight profile · United Airlines
UA1477
Houston (IAH) to San Antonio (SAT) · scheduled 6:30 PM – 7:37 PM
How UA1477 performs
491 operations, 2024-12-19 to 2026-06-30.
UA1477 arrived on time 75.3% of the time, against 79.3% for all IAH → SAT flights — this specific departure is 4.0 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 4.1 points worse.
Source: US DOT Bureau of Transportation Statistics · 491 operations between 2024-12-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1477 | 75.3% | 1.22% | -5 min | 9.7% | 491 |
| United Airlines on IAH → SAT | 79.4% | 1.36% | -6 min | 7.5% | 6,327 |
| All IAH → SAT flights | 79.3% | 1.37% | -6 min | 7.6% | 6,810 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-12-19 to 2026-06-30
Other routes UA1477 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→IAH Santa Ana to Houston | 2024-06-27 – 2026-03-04 | 111 | 79.0% |
| PHX→IAH Phoenix to Houston | 2024-11-03 – 2025-10-25 | 229 | 74.9% |
| ORD→PHX Chicago to Phoenix | 2025-03-30 – 2025-09-01 | 153 | 92.8% |
| IAH→BNA Houston to Nashville | 2025-06-26 – 2025-07-31 | 36 | — |
| AUS→IAH Austin to Houston | 2024-12-24 – 2025-01-04 | 6 | — |
| IAH→AUS Houston to Austin | 2023-09-29 – 2024-12-18 | 394 | 72.8% |
| AUS→SFO Austin to San Francisco | 2024-10-17 – 2024-10-18 | 2 | — |
| MSN→IAH Madison to Houston | 2024-10-04 – 2024-10-09 | 4 | — |
| MCO→IAH Orlando to Houston | 2024-03-07 – 2024-05-01 | 56 | — |
| AUS→ORD Austin to Chicago | 2024-03-07 – 2024-03-28 | 10 | — |
| DCA→IAH Washington to Houston | 2023-10-29 – 2023-11-27 | 25 | — |
| BOI→DEN Boise to Denver | 2023-07-01 – 2023-09-28 | 89 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1477 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 491 records of UA1477 operating IAH → SAT, 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.