Flight OddsUA323 BOI → ORD
United Airlines · Boise, ID to Chicago, IL · 36 flights observed, 2025-10-26 to 2025-12-01 · 1,437 mi
UA323 covers more than one route in the data window — the stats below are for BOI → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
-2 min
90th percentile
+71 min
Cancellation rate
3%
How often is UA323 on time?
Across 36 flights on BOI → ORD from 2025-10-26 to 2025-12-01, UA323 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +71 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 25 | 71% |
| 16-30 min | 2 | 6% |
| 31-60 min | 4 | 11% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 3 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | -12 min |
| 2025-11 | 28 | 71% | +31 min |
| 2025-12 | 1 | 0% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 33% |
| Tue | 5 | 100% |
| Wed | 5 | 60% |
| Thu | 4 | 100% |
| Fri | 5 | 60% |
| Sat | 4 | 100% |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…