Flight profile · United Airlines
UA1859
Houston (IAH) to Austin (AUS) · scheduled 12:10 PM – 1:08 PM
How UA1859 performs
288 operations, 2025-08-19 to 2026-06-30.
UA1859 arrived on time 82.7% of the time, against 76.6% for all IAH → AUS flights — this specific departure is 6.2 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 6.3 points better.
Source: US DOT Bureau of Transportation Statistics · 288 operations between 2025-08-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1859 | 82.7% | 1.39% | -5 min | 4.9% | 288 |
| United Airlines on IAH → AUS | 76.4% | 1.24% | -3 min | 8.8% | 7,006 |
| All IAH → AUS flights | 76.6% | 1.21% | -3 min | 8.9% | 7,300 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-08-19 to 2026-06-30
Other routes UA1859 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 |
|---|---|---|---|
| PIT→IAH Pittsburgh to Houston | 2026-03-29 – 2026-06-30 | 93 | 91.4% |
| PHL→IAH Philadelphia to Houston | 2026-02-12 – 2026-03-04 | 21 | — |
| LGA→IAH New York to Houston | 2025-12-18 – 2026-01-05 | 9 | — |
| MCO→ORD Orlando to Chicago | 2025-12-26 – 2026-01-03 | 8 | — |
| MSP→IAH Minneapolis to Houston | 2025-12-02 – 2025-12-17 | 16 | — |
| AUS→EWR Austin to Newark | 2025-10-26 – 2025-12-01 | 36 | — |
| ORD→SNA Chicago to Santa Ana | 2025-05-22 – 2025-08-18 | 89 | — |
| SAV→ORD Savannah to Chicago | 2025-03-06 – 2025-06-23 | 96 | 83.0% |
| ORD→LAS Chicago to Las Vegas | 2025-03-30 – 2025-05-21 | 50 | — |
| EWR→SAV Newark to Savannah | 2023-07-01 – 2025-04-30 | 28 | — |
| ATL→ORD Atlanta to Chicago | 2024-06-27 – 2025-03-05 | 188 | 86.5% |
| ORD→LAX Chicago to Los Angeles | 2025-02-13 – 2025-03-05 | 21 | — |
| STL→SFO St. Louis to San Francisco | 2024-12-19 – 2025-01-06 | 19 | — |
| PIT→ORD Pittsburgh to Chicago | 2024-12-01 – 2024-12-01 | 1 | — |
| DCA→IAH Washington to Houston | 2024-10-27 – 2024-10-27 | 1 | — |
| JAC→IAH Jackson to Houston | 2024-07-06 – 2024-08-18 | 14 | — |
| IAH→IND Houston to Indianapolis | 2024-07-14 – 2024-07-21 | 2 | — |
| ORD→LGA Chicago to New York | 2024-05-23 – 2024-06-26 | 29 | — |
| IAH→SNA Houston to Santa Ana | 2024-05-02 – 2024-05-22 | 21 | — |
| RSW→CLE Fort Myers to Cleveland | 2024-03-07 – 2024-05-01 | 56 | — |
| CLE→PHX Cleveland to Phoenix | 2024-03-07 – 2024-03-30 | 24 | — |
| MCO→IAD Orlando to Washington | 2024-02-15 – 2024-03-06 | 21 | — |
| ORD→IAD Chicago to Washington | 2024-01-09 – 2024-02-14 | 37 | — |
| IAD→BTV Washington to Burlington | 2023-07-03 – 2024-01-08 | 101 | 88.9% |
| DCA→ORD Washington to Chicago | 2023-10-29 – 2023-12-20 | 49 | — |
| DEN→EWR Denver to Newark | 2023-08-25 – 2023-08-27 | 3 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1859 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 288 records of UA1859 operating IAH → AUS, 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.