Flight OddsUA4551 FSD → ORD
United Airlines · Sioux Falls, SD to Chicago, IL · 113 flights observed, 2025-07-01 to 2026-05-21 · 462 mi
UA4551 covers more than one route in the data window — the stats below are for FSD → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
+7 min
90th percentile
+88 min
Cancellation rate
2%
How often is UA4551 on time?
Across 113 flights on FSD → ORD from 2025-07-01 to 2026-05-21, UA4551 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +88 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 71 | 64% |
| 16-30 min | 17 | 15% |
| 31-60 min | 9 | 8% |
| 61-120 min | 6 | 5% |
| 2+ hrs | 8 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 42% | +47 min |
| 2025-08 | 29 | 62% | +32 min |
| 2025-09 | 29 | 66% | +10 min |
| 2025-10 | 21 | 95% | -3 min |
| 2026-05 | 1 | 100% | -26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 80% |
| Tue | 16 | 81% |
| Wed | 17 | 65% |
| Thu | 18 | 61% |
| Fri | 17 | 53% |
| Sat | 12 | 25% |
| Sun | 16 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…