Flight profile · United Airlines
UA1990
Austin (AUS) to Chicago (ORD) · scheduled 5:35 PM – 8:25 PM
How UA1990 performs
957 operations, 2023-07-01 to 2026-06-30.
UA1990 arrived on time 71.9% of the time, against 78.0% for all AUS → ORD flights — this specific departure is 6.1 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 9.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 957 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1990 | 71.9% | 0.73% | 1 min | 9.4% | 957 |
| United Airlines on AUS → ORD | 81.3% | 0.70% | -7 min | 6.8% | 4,002 |
| All AUS → ORD flights | 78.0% | 1.09% | -6 min | 8.4% | 9,352 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA1990 run worse on particular days?
Tuesday is historically the most reliable day and Thursday the least, a gap of 23.0 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 UA1990 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→MSP Chicago to Minneapolis | 2026-05-23 – 2026-05-30 | 2 | — |
| LAX→AUS Los Angeles to Austin | 2025-09-25 – 2026-05-20 | 152 | 88.8% |
| ORD→MSN Chicago to Madison | 2024-05-03 – 2026-04-30 | 53 | — |
| ORD→DTW Chicago to Detroit | 2026-04-02 – 2026-04-27 | 16 | — |
| MEM→IAH Memphis to Houston | 2025-12-02 – 2025-12-17 | 16 | — |
| ORD→SFO Chicago to San Francisco | 2024-05-23 – 2025-11-30 | 37 | — |
| IAD→LAX Washington to Los Angeles | 2025-09-25 – 2025-10-25 | 31 | — |
| EWR→IAH Newark to Houston | 2024-09-26 – 2024-09-26 | 1 | — |
| AUS→SFO Austin to San Francisco | 2023-10-19 – 2023-10-19 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1990 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 957 records of UA1990 operating AUS → ORD, 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.