Flight profile · United Airlines
UA2666
Denver (DEN) to Santa Ana (SNA) · scheduled 7:50 AM – 9:21 AM
How UA2666 performs
979 operations, 2023-07-01 to 2026-06-30.
UA2666 arrived on time 90.9% of the time, against 80.1% for all DEN → SNA flights — this specific departure is 10.9 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 7.1 points better.
Source: US DOT Bureau of Transportation Statistics · 979 operations between 2023-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2666 | 90.9% | 0.20% | -12 min | 2.4% | 979 |
| United Airlines on DEN → SNA | 83.8% | 0.45% | -8 min | 4.2% | 5,280 |
| All DEN → SNA flights | 80.1% | 0.57% | -5 min | 4.5% | 11,037 |
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30
By day of week
Does UA2666 run worse on particular days?
Tuesday is historically the most reliable day and Saturday the least, a gap of 8.4 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · 2023-07-01 to 2026-06-30 · Days with fewer than 120 operations are not scored.
Other routes UA2666 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.
Because the same number has served different journeys, the statistics above describe only the route UA2666 currently operates. Blending them would produce an average of two different flights.
Data and methodology
Calculated by FlyerIntel from 979 records of UA2666 operating DEN → SNA, 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.