Flight profile · United Airlines
UA671
Denver (DEN) to Santa Barbara (SBA) · scheduled 11:30 AM – 1:07 PM
How UA671 performs
389 operations, 2025-03-06 to 2026-06-30.
UA671 arrived on time 82.9% of the time, against 77.4% for all DEN → SBA flights — this specific departure is 5.5 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 5.4 points better.
Source: US DOT Bureau of Transportation Statistics · 389 operations between 2025-03-06 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA671 | 82.9% | 0.00% | -2 min | 4.1% | 389 |
| United Airlines on DEN → SBA | 77.5% | 0.86% | -4 min | 6.5% | 2,325 |
| All DEN → SBA flights | 77.4% | 0.82% | -3 min | 6.3% | 3,405 |
Source: FlyerIntel analysis of US DOT BTS data · 2025-03-06 to 2026-06-30
Other routes UA671 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 |
|---|---|---|---|
| JAX→DEN Jacksonville to Denver | 2026-02-12 – 2026-06-30 | 134 | 90.3% |
| SYR→DEN Syracuse to Denver | 2026-01-06 – 2026-02-11 | 36 | — |
| ORD→DEN Chicago to Denver | 2025-12-18 – 2026-01-05 | 19 | — |
| ORF→DEN Norfolk to Denver | 2025-10-26 – 2025-12-01 | 37 | — |
| MIA→DEN Miami to Denver | 2025-08-19 – 2025-09-24 | 37 | — |
| XNA→DEN Fayetteville/Springdale/Rogers to Denver | 2025-06-26 – 2025-08-18 | 54 | — |
| CLT→ORD Charlotte to Chicago | 2025-05-22 – 2025-06-25 | 35 | — |
| DEN→SJC Denver to San Jose | 2025-02-13 – 2025-03-05 | 21 | — |
| PHL→DEN Philadelphia to Denver | 2025-02-13 – 2025-03-05 | 21 | — |
| BIL→DEN Billings to Denver | 2024-05-23 – 2025-02-12 | 266 | 86.0% |
| DEN→BZN Denver to Bozeman | 2023-07-01 – 2024-05-22 | 327 | 83.0% |
| PHX→DEN Phoenix to Denver | 2023-10-30 – 2023-11-27 | 17 | — |
Because the same number has served different journeys, the statistics above describe only the route UA671 currently operates. Blending them would produce an average of two different flights.
Why UA671 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding, fuelling — within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA671 on DEN → SBA. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Data and methodology
Calculated by FlyerIntel from 389 records of UA671 operating DEN → SBA, 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.
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