Flight profile · United Airlines
UA2091
San Francisco (SFO) to Chicago (ORD) · scheduled 6:45 AM – 12:24 PM
How UA2091 performs
278 operations, 2025-09-25 to 2026-06-30.
UA2091 arrived on time 92.4% of the time, against 79.1% for all SFO → ORD flights — this specific departure is 13.3 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 11.8 points better.
Source: US DOT Bureau of Transportation Statistics · 278 operations between 2025-09-25 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2091 | 92.4% | 0.00% | -16 min | 2.2% | 278 |
| United Airlines on SFO → ORD | 80.6% | 1.00% | -8 min | 6.4% | 10,627 |
| All SFO → ORD flights | 79.1% | 1.09% | -8 min | 7.0% | 15,597 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-09-25 to 2026-06-30
Other routes UA2091 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→RDU Chicago to Raleigh–Durham | 2026-02-12 – 2026-06-30 | 132 | 81.1% |
| RDU→IAD Raleigh–Durham to Washington | 2026-02-12 – 2026-03-04 | 18 | — |
| ORD→CLE Chicago to Cleveland | 2023-11-28 – 2025-12-01 | 59 | — |
| ORD→IAH Chicago to Houston | 2025-09-25 – 2025-10-25 | 31 | — |
| IAH→BNA Houston to Nashville | 2025-09-25 – 2025-10-24 | 26 | — |
| ORD→DSM Chicago to Des Moines | 2025-08-19 – 2025-09-24 | 37 | — |
| BNA→EWR Nashville to Newark | 2025-05-01 – 2025-08-18 | 104 | 73.5% |
| ORD→TPA Chicago to Tampa | 2025-03-30 – 2025-04-28 | 22 | — |
| ORD→RSW Chicago to Fort Myers | 2025-03-06 – 2025-03-29 | 18 | — |
| ORD→EWR Chicago to Newark | 2024-12-19 – 2025-03-05 | 77 | — |
| LGA→ORD New York to Chicago | 2024-10-27 – 2024-12-18 | 45 | — |
| ORD→SEA Chicago to Seattle | 2023-07-01 – 2024-10-26 | 312 | 85.4% |
| ICT→ORD Wichita to Chicago | 2024-08-20 – 2024-09-25 | 37 | — |
| SEA→SFO Seattle to San Francisco | 2024-05-23 – 2024-08-18 | 51 | — |
| SFO→SBA San Francisco to Santa Barbara | 2024-05-23 – 2024-05-31 | 9 | — |
| SEA→IAD Seattle to Washington | 2024-05-22 – 2024-05-22 | 1 | — |
| IAH→FLL Houston to Fort Lauderdale | 2024-03-07 – 2024-03-30 | 24 | — |
| MCO→ORD Orlando to Chicago | 2024-02-15 – 2024-03-06 | 21 | — |
| ORD→LAS Chicago to Las Vegas | 2024-01-11 – 2024-02-13 | 22 | — |
| PHL→ORD Philadelphia to Chicago | 2024-01-12 – 2024-01-12 | 1 | — |
| LAS→SJC Las Vegas to San Jose | 2024-01-08 – 2024-01-08 | 1 | — |
| SFO→BOI San Francisco to Boise | 2024-01-02 – 2024-01-05 | 4 | — |
| BHM→LAX Birmingham to Los Angeles | 2023-12-30 – 2023-12-30 | 1 | — |
| IAH→XNA Houston to Fayetteville/Springdale/Rogers | 2023-10-13 – 2023-10-13 | 1 | — |
| IAH→SFO Houston to San Francisco | 2023-08-27 – 2023-08-27 | 1 | — |
| SFO→IAH San Francisco to Houston | 2023-07-19 – 2023-07-19 | 1 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2091 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 278 records of UA2091 operating SFO → 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.