Flight profile · United Airlines
UA1812
Denver (DEN) to San Francisco (SFO) · scheduled 1:25 PM – 3:25 PM
How UA1812 performs
624 operations, 2024-06-27 to 2026-06-30.
UA1812 arrived on time 79.2% of the time, against 68.5% for all DEN → SFO flights — this specific departure is 10.7 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 5.2 points better.
Source: US DOT Bureau of Transportation Statistics · 624 operations between 2024-06-27 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA1812 | 79.2% | 0.00% | -8 min | 8.2% | 624 |
| United Airlines on DEN → SFO | 74.0% | 0.72% | -4 min | 9.4% | 10,066 |
| All DEN → SFO flights | 68.5% | 0.70% | -1 min | 11.2% | 16,595 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-06-27 to 2026-06-30
Other routes UA1812 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 |
|---|---|---|---|
| SFO→PDX San Francisco to Portland | 2026-03-29 – 2026-05-20 | 53 | — |
| LGA→DEN New York to Denver | 2026-04-30 – 2026-05-20 | 21 | — |
| SFO→BUR San Francisco to Burbank | 2025-09-25 – 2025-10-25 | 31 | — |
| SFO→SAN San Francisco to San Diego | 2023-10-29 – 2025-09-24 | 67 | — |
| SFO→ANC San Francisco to Anchorage | 2025-06-26 – 2025-08-18 | 54 | — |
| SFO→LAX San Francisco to Los Angeles | 2024-12-03 – 2025-06-25 | 171 | 83.0% |
| LAX→CLE Los Angeles to Cleveland | 2025-06-01 – 2025-06-25 | 25 | — |
| LAX→LAS Los Angeles to Las Vegas | 2025-01-06 – 2025-01-06 | 1 | — |
| EWR→DEN Newark to Denver | 2024-05-23 – 2024-06-26 | 35 | — |
| DEN→IAH Denver to Houston | 2024-03-31 – 2024-05-22 | 53 | — |
| SYR→DEN Syracuse to Denver | 2024-05-02 – 2024-05-22 | 21 | — |
| IAD→IAH Washington to Houston | 2023-12-21 – 2024-03-30 | 101 | 81.8% |
| LAX→PHX Los Angeles to Phoenix | 2023-12-14 – 2023-12-20 | 7 | — |
| ORD→CLE Chicago to Cleveland | 2023-11-28 – 2023-12-13 | 16 | — |
| PHX→ORD Phoenix to Chicago | 2023-12-13 – 2023-12-13 | 1 | — |
| DEN→EWR Denver to Newark | 2023-07-01 – 2023-10-28 | 120 | 70.4% |
Because the same number has served different journeys, the statistics above describe only the route UA1812 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 624 records of UA1812 operating DEN → SFO, 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.