Flight OddsUA5666 SLC → DEN
United Airlines · Salt Lake City, UT to Denver, CO · 117 flights observed, 2025-07-01 to 2025-10-25 · 391 mi
UA5666 covers more than one route in the data window — the stats below are for SLC → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-2 min
90th percentile
+64 min
Cancellation rate
0%
How often is UA5666 on time?
Across 117 flights on SLC → DEN from 2025-07-01 to 2025-10-25, UA5666 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +64 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 98 | 84% |
| 16-30 min | 3 | 3% |
| 31-60 min | 4 | 3% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 11 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | +48 min |
| 2025-08 | 31 | 81% | +26 min |
| 2025-09 | 30 | 97% | -9 min |
| 2025-10 | 25 | 68% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 94% |
| Tue | 17 | 88% |
| Wed | 17 | 65% |
| Thu | 17 | 88% |
| Fri | 17 | 82% |
| Sat | 17 | 76% |
| Sun | 16 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…