Flight OddsUA5599 BIL → ORD
United Airlines · Billings, MT to Chicago, IL · 117 flights observed, 2025-07-01 to 2025-10-25 · 1,060 mi
UA5599 covers more than one route in the data window — the stats below are for BIL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-5 min
90th percentile
+40 min
Cancellation rate
0%
How often is UA5599 on time?
Across 117 flights on BIL → ORD from 2025-07-01 to 2025-10-25, UA5599 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +40 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 91 | 79% |
| 16-30 min | 11 | 10% |
| 31-60 min | 3 | 3% |
| 61-120 min | 7 | 6% |
| 2+ hrs | 3 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 68% | +12 min |
| 2025-08 | 29 | 83% | +4 min |
| 2025-09 | 30 | 77% | +9 min |
| 2025-10 | 25 | 92% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 87% |
| Tue | 17 | 82% |
| Wed | 17 | 76% |
| Thu | 17 | 76% |
| Fri | 17 | 76% |
| Sat | 16 | 88% |
| Sun | 16 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…