Flight OddsUA5021 ORD → SUX
United Airlines · Chicago, IL to Sioux City, IA · 238 flights observed, 2025-07-01 to 2026-06-30 · 436 mi
UA5021 covers more than one route in the data window — the stats below are for ORD → SUX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
63%
Median delay
+6 min
90th percentile
+98 min
Cancellation rate
5%
How often is UA5021 on time?
Across 238 flights on ORD → SUX from 2025-07-01 to 2026-06-30, UA5021 arrived within 15 minutes of schedule 63% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +98 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 138 | 63% |
| 16-30 min | 25 | 11% |
| 31-60 min | 17 | 8% |
| 61-120 min | 21 | 10% |
| 2+ hrs | 18 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 52% | +51 min |
| 2025-08 | 28 | 61% | +25 min |
| 2025-09 | 23 | 91% | -4 min |
| 2025-10 | 5 | 80% | +1 min |
| 2025-11 | 25 | 72% | +86 min |
| 2025-12 | 25 | 60% | +63 min |
| 2026-01 | 5 | 80% | +23 min |
| 2026-02 | 17 | 65% | +75 min |
| 2026-03 | 4 | 50% | +36 min |
| 2026-04 | 1 | 0% | +62 min |
| 2026-05 | 31 | 48% | +43 min |
| 2026-06 | 28 | 61% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 71% |
| Tue | 35 | 66% |
| Wed | 30 | 57% |
| Thu | 30 | 73% |
| Fri | 31 | 68% |
| Sat | 29 | 55% |
| Sun | 33 | 52% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…