Flight profile · United Airlines
UA1878
Austin (AUS) to Chicago (ORD) · scheduled 7:00 AM – 9:55 AM
How UA1878 performs
363 operations, 2024-12-19 to 2026-06-30.
UA1878 arrived on time 87.9% of the time, against 78.0% for all AUS → ORD flights — this specific departure is 9.9 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 6.6 points better.
Source: US DOT Bureau of Transportation Statistics · 363 operations between 2024-12-19 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1878 | 87.9% | 1.65% | -8 min | 3.7% | 363 |
| 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 · 2024-12-19 to 2026-06-30
Other routes UA1878 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→CLE Chicago to Cleveland | 2026-04-06 – 2026-05-31 | 53 | — |
| CLE→EWR Cleveland to Newark | 2026-05-21 – 2026-05-31 | 10 | — |
| RNO→SFO Reno to San Francisco | 2026-04-01 – 2026-04-04 | 2 | — |
| ORD→OMA Chicago to Omaha | 2026-02-12 – 2026-03-04 | 21 | — |
| ORD→EWR Chicago to Newark | 2026-01-08 – 2026-02-09 | 20 | — |
| ORD→IND Chicago to Indianapolis | 2025-12-04 – 2025-12-15 | 6 | — |
| ORD→IAD Chicago to Washington | 2025-08-19 – 2025-09-01 | 9 | — |
| ORD→SFO Chicago to San Francisco | 2023-07-01 – 2025-08-18 | 731 | 79.1% |
| SFO→PHX San Francisco to Phoenix | 2025-05-01 – 2025-05-21 | 21 | — |
| SFO→LAS San Francisco to Las Vegas | 2024-08-19 – 2025-04-30 | 70 | — |
| DCA→ORD Washington to Chicago | 2025-03-30 – 2025-04-30 | 28 | — |
| RDU→ORD Raleigh–Durham to Chicago | 2024-02-15 – 2025-03-29 | 181 | 87.0% |
| FLL→ORD Fort Lauderdale to Chicago | 2025-01-09 – 2025-02-10 | 25 | — |
| GRR→ORD Grand Rapids to Chicago | 2024-10-27 – 2024-12-02 | 31 | — |
| MSP→ORD Minneapolis to Chicago | 2024-09-26 – 2024-10-26 | 31 | — |
| SFO→BUR San Francisco to Burbank | 2024-09-26 – 2024-10-25 | 26 | — |
| SFO→JAC San Francisco to Jackson | 2024-05-23 – 2024-08-18 | 88 | — |
| SFO→SBA San Francisco to Santa Barbara | 2024-03-07 – 2024-05-22 | 44 | — |
| SFO→EWR San Francisco to Newark | 2024-02-15 – 2024-03-06 | 17 | — |
| PDX→SFO Portland to San Francisco | 2023-12-21 – 2024-01-08 | 19 | — |
| SFO→SNA San Francisco to Santa Ana | 2023-11-28 – 2023-12-20 | 23 | — |
| LGA→ORD New York to Chicago | 2023-07-01 – 2023-11-27 | 150 | 92.0% |
Because the same number has served different journeys, the statistics above describe only the route UA1878 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 363 records of UA1878 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.