Flight OddsUA645 DEN → FSD
United Airlines · Denver, CO to Sioux Falls, SD · 326 flights observed, 2025-07-01 to 2026-06-30 · 483 mi
UA645 covers more than one route in the data window — the stats below are for DEN → FSD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-3 min
90th percentile
+75 min
Cancellation rate
1%
How often is UA645 on time?
Across 326 flights on DEN → FSD from 2025-07-01 to 2026-06-30, UA645 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +75 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 239 | 74% |
| 16-30 min | 20 | 6% |
| 31-60 min | 23 | 7% |
| 61-120 min | 15 | 5% |
| 2+ hrs | 24 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 39% | +118 min |
| 2025-08 | 17 | 65% | +44 min |
| 2025-09 | 6 | 67% | +74 min |
| 2025-10 | 31 | 84% | +10 min |
| 2025-11 | 29 | 83% | +4 min |
| 2025-12 | 31 | 77% | +8 min |
| 2026-01 | 31 | 81% | -1 min |
| 2026-02 | 27 | 74% | +8 min |
| 2026-03 | 29 | 76% | +17 min |
| 2026-04 | 29 | 86% | +11 min |
| 2026-05 | 30 | 83% | +11 min |
| 2026-06 | 30 | 70% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 65% |
| Tue | 47 | 81% |
| Wed | 44 | 80% |
| Thu | 46 | 63% |
| Fri | 47 | 74% |
| Sat | 46 | 83% |
| Sun | 45 | 76% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…