Flight OddsUnited Airlines · Salt Lake City, UT to Chicago, IL · 61 flights observed, 2025-08-19 to 2025-10-25 · 1,250 mi
UA2231 covers more than one route in the data window — the stats below are for SLC → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA2231 on time?
Across 61 flights on SLC → ORD from 2025-08-19 to 2025-10-25, UA2231 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +39 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 | 41 | 68% |
| 16-30 min | 9 | 15% |
| 31-60 min | 6 | 10% |
| 61-120 min | 3 | 5% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 10 | 70% | +18 min |
| 2025-09 | 25 | 76% | +11 min |
| 2025-10 | 25 | 60% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 67% |
| Tue | 10 | 80% |
| Wed | 10 | 60% |
| Thu | 9 | 89% |
| Fri | 10 | 30% |
| Sat | 5 | 80% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…