Flight OddsUA4589 ORD → DAY
United Airlines · Chicago, IL to Dayton, OH · 135 flights observed, 2026-01-06 to 2026-06-30 · 240 mi
UA4589 covers more than one route in the data window — the stats below are for ORD → DAY, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
+2 min
90th percentile
+88 min
Cancellation rate
7%
How often is UA4589 on time?
Across 135 flights on ORD → DAY from 2026-01-06 to 2026-06-30, UA4589 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +88 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 | 87 | 70% |
| 16-30 min | 13 | 10% |
| 31-60 min | 7 | 6% |
| 61-120 min | 9 | 7% |
| 2+ hrs | 9 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 22 | 73% | +9 min |
| 2026-02 | 27 | 78% | +21 min |
| 2026-03 | 28 | 57% | +72 min |
| 2026-04 | 1 | 100% | +5 min |
| 2026-05 | 18 | 72% | +12 min |
| 2026-06 | 29 | 69% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 82% |
| Tue | 18 | 61% |
| Wed | 18 | 72% |
| Thu | 19 | 63% |
| Fri | 17 | 53% |
| Sat | 18 | 83% |
| Sun | 18 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…