Flight profile · United Airlines
UA2633
Denver (DEN) to San Francisco (SFO) · scheduled 3:55 PM – 5:50 PM
How UA2633 performs
481 operations, 2025-03-06 to 2026-06-30.
UA2633 arrived on time 75.9% of the time, against 68.5% for all DEN → SFO flights — this specific departure is 7.4 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 1.9 points better.
Source: US DOT Bureau of Transportation Statistics · 481 operations between 2025-03-06 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2633 | 75.9% | 0.83% | -4 min | 10.1% | 481 |
| 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 · 2025-03-06 to 2026-06-30
Other routes UA2633 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 |
|---|---|---|---|
| PHL→DEN Philadelphia to Denver | 2026-05-01 – 2026-05-20 | 20 | — |
| SFO→SAN San Francisco to San Diego | 2024-12-19 – 2026-01-05 | 306 | 77.6% |
| CLE→DEN Cleveland to Denver | 2025-06-26 – 2025-10-24 | 30 | — |
| SAN→ORD San Diego to Chicago | 2024-12-19 – 2025-07-31 | 142 | 89.4% |
| STL→DEN St. Louis to Denver | 2025-05-01 – 2025-05-21 | 21 | — |
| LGA→DEN New York to Denver | 2025-03-31 – 2025-04-30 | 23 | — |
| PDX→SFO Portland to San Francisco | 2023-11-28 – 2025-02-12 | 281 | 81.0% |
| SFO→IAH San Francisco to Houston | 2024-08-19 – 2024-12-02 | 104 | 82.7% |
| KOA→SFO Kailua-Kona to San Francisco | 2024-11-01 – 2024-11-01 | 1 | — |
| ORD→PDX Chicago to Portland | 2024-06-27 – 2024-08-18 | 53 | — |
| ORD→BDL Chicago to Hartford | 2024-05-02 – 2024-05-22 | 21 | — |
| SFO→PHL San Francisco to Philadelphia | 2024-03-31 – 2024-05-01 | 32 | — |
| SFO→AUS San Francisco to Austin | 2023-12-21 – 2024-03-30 | 94 | 77.6% |
| MCO→ORD Orlando to Chicago | 2024-02-08 – 2024-02-08 | 1 | — |
| IAH→AUS Houston to Austin | 2023-12-17 – 2023-12-17 | 1 | — |
| IAH→SAT Houston to San Antonio | 2023-12-03 – 2023-12-10 | 2 | — |
| IAH→PDX Houston to Portland | 2023-07-01 – 2023-11-27 | 150 | 85.3% |
| STL→IAH St. Louis to Houston | 2023-07-01 – 2023-11-27 | 147 | 88.4% |
Because the same number has served different journeys, the statistics above describe only the route UA2633 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 481 records of UA2633 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.