Flight OddsUA4578 DAY → ORD
United Airlines · Dayton, OH to Chicago, IL · 18 flights observed, 2025-12-19 to 2026-01-05 · 240 mi
UA4578 covers more than one route in the data window — the stats below are for DAY → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-23 min
90th percentile
+58 min
Cancellation rate
0%
How often is UA4578 on time?
Across 18 flights on DAY → ORD from 2025-12-19 to 2026-01-05, UA4578 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -23 min, and the worst 10% of flights arrived +58 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 | 14 | 82% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 6% |
| 61-120 min | 2 | 12% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 13 | 77% | -5 min |
| 2026-01 | 4 | 100% | -23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 2 | 50% |
| Wed | 2 | 100% |
| Thu | 1 | 100% |
| Fri | 3 | 67% |
| Sat | 3 | 100% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…