Flight OddsUA4806 BOI → ORD
United Airlines · Boise, ID to Chicago, IL · 170 flights observed, 2025-12-02 to 2026-05-20 · 1,437 mi
UA4806 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
84%
Median delay
-14 min
90th percentile
+41 min
Cancellation rate
1%
How often is UA4806 on time?
Across 170 flights on BOI → ORD from 2025-12-02 to 2026-05-20, UA4806 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +41 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 140 | 84% |
| 16-30 min | 8 | 5% |
| 31-60 min | 11 | 7% |
| 61-120 min | 5 | 3% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 30 | 90% | -17 min |
| 2026-01 | 31 | 87% | +3 min |
| 2026-02 | 28 | 93% | -14 min |
| 2026-03 | 30 | 83% | +10 min |
| 2026-04 | 29 | 62% | +12 min |
| 2026-05 | 19 | 89% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 79% |
| Tue | 25 | 84% |
| Wed | 25 | 76% |
| Thu | 22 | 82% |
| Fri | 24 | 75% |
| Sat | 24 | 100% |
| Sun | 23 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…