Flight profile · United Airlines
UA1046
Atlanta (ATL) to Chicago (ORD) · scheduled 6:59 PM – 8:24 PM
How UA1046 performs
909 operations, 2023-07-03 to 2026-06-30.
UA1046 arrived on time 68.5% of the time, against 74.3% for all ATL → ORD flights — this specific departure is 5.8 percentage points worse than the route as a whole. Against United Airlines’s own flights on this route it is 11.5 points worse.
Source: US DOT Bureau of Transportation Statistics · 909 operations between 2023-07-03 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1046 | 68.5% | 1.65% | 4 min | 12.1% | 909 |
| United Airlines on ATL → ORD | 79.9% | 1.18% | -6 min | 7.6% | 4,734 |
| All ATL → ORD flights | 74.3% | 1.63% | -3 min | 9.3% | 17,984 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-03 to 2026-06-30
By day of week
Does UA1046 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 16.6 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-03 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA1046 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 |
|---|---|---|---|
| PBI→ORD West Palm Beach to Chicago | 2026-03-07 – 2026-03-28 | 4 | — |
| ORD→MSP Chicago to Minneapolis | 2025-12-18 – 2026-01-05 | 17 | — |
| OKC→IAH Oklahoma City to Houston | 2025-12-24 – 2025-12-31 | 2 | — |
| SFO→ATL San Francisco to Atlanta | 2025-12-02 – 2025-12-17 | 16 | — |
| ORD→PIT Chicago to Pittsburgh | 2025-03-08 – 2025-03-29 | 4 | — |
| ORD→EYW Chicago to Key West | 2024-12-24 – 2025-01-04 | 12 | — |
| ORD→IND Chicago to Indianapolis | 2024-12-03 – 2024-12-18 | 16 | — |
| MSN→SFO Madison to San Francisco | 2024-08-18 – 2024-08-18 | 1 | — |
| DRO→DEN Durango to Denver | 2024-05-23 – 2024-06-26 | 35 | — |
| ORD→SDF Chicago to Louisville | 2024-05-02 – 2024-05-05 | 2 | — |
| ORD→PSP Chicago to Palm Springs | 2024-04-28 – 2024-04-28 | 1 | — |
| FLL→DEN Fort Lauderdale to Denver | 2023-12-02 – 2023-12-16 | 3 | — |
| ORD→SEA Chicago to Seattle | 2023-07-01 – 2023-11-26 | 88 | — |
| SEA→EWR Seattle to Newark | 2023-07-01 – 2023-09-04 | 66 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1046 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 909 records of UA1046 operating ATL → 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.