Flight OddsUA5231 SBN → ORD
United Airlines · South Bend, IN to Chicago, IL · 364 flights observed, 2025-07-01 to 2026-06-30 · 84 mi
On-time arrival
72%
Median delay
+1 min
90th percentile
+74 min
Cancellation rate
2%
How often is UA5231 on time?
Across 364 flights on SBN → ORD from 2025-07-01 to 2026-06-30, UA5231 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +74 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 | 255 | 72% |
| 16-30 min | 37 | 10% |
| 31-60 min | 20 | 6% |
| 61-120 min | 17 | 5% |
| 2+ hrs | 27 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +7 min |
| 2025-08 | 30 | 80% | +12 min |
| 2025-09 | 30 | 83% | +5 min |
| 2025-10 | 31 | 77% | +11 min |
| 2025-11 | 28 | 64% | +36 min |
| 2025-12 | 30 | 53% | +46 min |
| 2026-01 | 30 | 60% | +44 min |
| 2026-02 | 27 | 59% | +38 min |
| 2026-03 | 28 | 68% | +19 min |
| 2026-04 | 30 | 67% | +18 min |
| 2026-05 | 31 | 84% | +7 min |
| 2026-06 | 30 | 87% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 58% |
| Tue | 52 | 69% |
| Wed | 49 | 86% |
| Thu | 52 | 71% |
| Fri | 51 | 69% |
| Sat | 51 | 82% |
| Sun | 51 | 67% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…