Flight OddsUA5666 IDA → DEN
United Airlines · Idaho Falls, ID to Denver, CO · 139 flights observed, 2025-10-26 to 2026-06-30 · 458 mi
UA5666 covers more than one route in the data window — the stats below are for IDA → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-5 min
90th percentile
+47 min
Cancellation rate
0%
How often is UA5666 on time?
Across 139 flights on IDA → DEN from 2025-10-26 to 2026-06-30, UA5666 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +47 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 | 100 | 72% |
| 16-30 min | 14 | 10% |
| 31-60 min | 13 | 9% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 6 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 4 | 75% | -4 min |
| 2025-11 | 23 | 91% | -2 min |
| 2025-12 | 29 | 69% | +6 min |
| 2026-01 | 31 | 87% | -8 min |
| 2026-02 | 11 | 91% | -3 min |
| 2026-05 | 11 | 36% | +20 min |
| 2026-06 | 30 | 50% | +43 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 76% |
| Tue | 18 | 83% |
| Wed | 21 | 62% |
| Thu | 19 | 58% |
| Fri | 20 | 75% |
| Sat | 18 | 56% |
| Sun | 22 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…