Flight profile · United Airlines
UA2348
San Francisco (SFO) to Denver (DEN) · scheduled 8:35 AM – 12:09 PM
How UA2348 performs
350 operations, 2025-05-22 to 2026-06-30.
UA2348 arrived on time 86.2% of the time, against 76.7% for all SFO → DEN flights — this specific departure is 9.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 3.5 points better.
Source: US DOT Bureau of Transportation Statistics · 350 operations between 2025-05-22 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2348 | 86.2% | 0.86% | -5 min | 4.6% | 350 |
| United Airlines on SFO → DEN | 82.7% | 0.54% | -8 min | 5.8% | 10,065 |
| All SFO → DEN flights | 76.7% | 0.61% | -5 min | 7.7% | 16,605 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-05-22 to 2026-06-30
Other routes UA2348 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 |
|---|---|---|---|
| DEN→RSW Denver to Fort Myers | 2026-02-14 – 2026-06-28 | 32 | — |
| DEN→MIA Denver to Miami | 2026-04-30 – 2026-05-20 | 21 | — |
| DEN→SLC Denver to Salt Lake City | 2025-01-07 – 2026-03-27 | 226 | 78.3% |
| EWR→DEN Newark to Denver | 2025-09-25 – 2025-09-25 | 1 | — |
| PHX→DEN Phoenix to Denver | 2025-03-30 – 2025-05-21 | 50 | — |
| MSP→DEN Minneapolis to Denver | 2024-12-03 – 2025-03-05 | 56 | — |
| ORD→MSP Chicago to Minneapolis | 2024-06-27 – 2025-01-06 | 160 | 85.6% |
| BNA→ORD Nashville to Chicago | 2024-10-27 – 2024-12-02 | 34 | — |
| ROC→ORD Rochester to Chicago | 2024-08-19 – 2024-10-26 | 69 | — |
| IAD→ORD Washington to Chicago | 2024-06-27 – 2024-08-18 | 52 | — |
| ORD→ORF Chicago to Norfolk | 2024-05-24 – 2024-06-26 | 34 | — |
| BOS→DEN Boston to Denver | 2024-05-23 – 2024-05-23 | 1 | — |
| IND→SFO Indianapolis to San Francisco | 2024-03-31 – 2024-05-22 | 53 | — |
| SFO→PHL San Francisco to Philadelphia | 2024-03-07 – 2024-03-30 | 24 | — |
| SFO→LAX San Francisco to Los Angeles | 2024-02-15 – 2024-03-06 | 14 | — |
| EWR→TPA Newark to Tampa | 2024-01-09 – 2024-02-14 | 36 | — |
| PBI→EWR West Palm Beach to Newark | 2023-12-21 – 2024-01-08 | 19 | — |
| ORD→DTW Chicago to Detroit | 2023-11-28 – 2023-12-20 | 22 | — |
| MCI→ORD Kansas City to Chicago | 2023-11-28 – 2023-12-20 | 20 | — |
| PHL→ORD Philadelphia to Chicago | 2023-10-29 – 2023-11-27 | 29 | — |
| IAH→DFW Houston to Dallas–Fort Worth | 2023-09-29 – 2023-10-28 | 30 | — |
| MEM→DEN Memphis to Denver | 2023-09-05 – 2023-09-28 | 24 | — |
| ORD→PDX Chicago to Portland | 2023-08-01 – 2023-09-04 | 35 | — |
| PIT→ORD Pittsburgh to Chicago | 2023-08-01 – 2023-09-04 | 35 | — |
| ORD→GSP Chicago to Greenville/Greer/Spartanburg | 2023-07-01 – 2023-07-31 | 31 | — |
| RDU→ORD Raleigh–Durham to Chicago | 2023-07-01 – 2023-07-31 | 28 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2348 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 350 records of UA2348 operating SFO → DEN, 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.