Flight profile · United Airlines
UA1155
Newark (EWR) to Austin (AUS) · scheduled 1:00 PM – 3:16 PM
How UA1155 performs
636 operations, 2024-06-27 to 2026-06-30.
UA1155 arrived on time 79.8% of the time, against 77.7% for all EWR → AUS flights — this specific departure is 2.2 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 1.8 points better.
Source: US DOT Bureau of Transportation Statistics · 636 operations between 2024-06-27 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1155 | 79.8% | 1.42% | -8 min | 7.4% | 636 |
| United Airlines on EWR → AUS | 78.0% | 1.93% | -8 min | 9.2% | 4,977 |
| All EWR → AUS flights | 77.7% | 2.31% | -8 min | 9.4% | 5,882 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-27 to 2026-06-30
Other routes UA1155 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 |
|---|---|---|---|
| GRR→ORD Grand Rapids to Chicago | 2026-04-03 – 2026-04-04 | 2 | — |
| ORD→SRQ Chicago to Sarasota/Bradenton | 2026-03-07 – 2026-03-28 | 4 | — |
| TYS→ORD Knoxville/Maryville to Chicago | 2026-01-06 – 2026-02-11 | 12 | — |
| IAD→EWR Washington to Newark | 2025-12-02 – 2025-12-17 | 16 | — |
| RDU→EWR Raleigh–Durham to Newark | 2025-08-19 – 2025-09-24 | 37 | — |
| LGA→ORD New York to Chicago | 2024-05-23 – 2024-06-26 | 29 | — |
| DEN→IND Denver to Indianapolis | 2023-07-01 – 2024-05-22 | 297 | 83.7% |
| ORD→IAH Chicago to Houston | 2023-10-29 – 2023-11-27 | 30 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1155 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 636 records of UA1155 operating EWR → 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.