Flight profile · United Airlines
UA1803
Pittsburgh (PIT) to Chicago (ORD) · scheduled 7:00 AM – 7:39 AM
How UA1803 performs
348 operations, 2024-06-28 to 2026-06-30.
UA1803 arrived on time 88.7% of the time, against 82.3% for all PIT → ORD flights — this specific departure is 6.4 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.0 points better.
Source: US DOT Bureau of Transportation Statistics · 348 operations between 2024-06-28 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1803 | 88.7% | 0.86% | -6 min | 4.1% | 348 |
| United Airlines on PIT → ORD | 81.7% | 1.24% | -6 min | 7.1% | 3,379 |
| All PIT → ORD flights | 82.3% | 1.47% | -9 min | 7.2% | 9,887 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-28 to 2026-06-30
Other routes UA1803 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→DSM Chicago to Des Moines | 2026-06-25 – 2026-06-30 | 6 | — |
| ORD→DEN Chicago to Denver | 2024-10-27 – 2026-06-24 | 606 | 85.2% |
| DEN→COS Denver to Colorado Springs | 2026-05-21 – 2026-06-24 | 35 | — |
| DEN→HDN Denver to Hayden | 2026-01-06 – 2026-03-04 | 58 | — |
| RDU→ORD Raleigh–Durham to Chicago | 2025-08-19 – 2025-12-17 | 111 | 91.9% |
| DEN→LAS Denver to Las Vegas | 2025-08-19 – 2025-09-24 | 34 | — |
| DEN→SJC Denver to San Jose | 2025-06-26 – 2025-07-31 | 34 | — |
| DCA→ORD Washington to Chicago | 2025-05-01 – 2025-05-21 | 21 | — |
| DEN→SFO Denver to San Francisco | 2024-12-19 – 2025-01-06 | 19 | — |
| ORD→JAX Chicago to Jacksonville | 2024-08-19 – 2024-10-26 | 69 | — |
| ORD→BOS Chicago to Boston | 2023-07-01 – 2024-08-16 | 369 | 89.6% |
| SEA→IAH Seattle to Houston | 2024-05-23 – 2024-05-31 | 9 | — |
| IAD→ATL Washington to Atlanta | 2024-02-14 – 2024-02-14 | 1 | — |
| RDU→IAD Raleigh–Durham to Washington | 2024-02-07 – 2024-02-08 | 2 | — |
| ORD→CHS Chicago to Charleston | 2024-02-01 – 2024-02-01 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1803 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 348 records of UA1803 operating PIT → 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.