Flight OddsUA4540 CAE → ORD
United Airlines · Columbia, SC to Chicago, IL · 29 flights observed, 2026-04-01 to 2026-04-29 · 666 mi
UA4540 covers more than one route in the data window — the stats below are for CAE → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+5 min
90th percentile
+86 min
Cancellation rate
7%
How often is UA4540 on time?
Across 29 flights on CAE → ORD from 2026-04-01 to 2026-04-29, UA4540 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +86 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 15 | 60% |
| 16-30 min | 2 | 8% |
| 31-60 min | 4 | 16% |
| 61-120 min | 3 | 12% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 25 | 60% | +21 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 67% |
| Wed | 5 | 40% |
| Thu | 2 | 50% |
| Fri | 4 | 50% |
| Sat | 4 | 50% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…