Flight OddsUA4578 EWR → CHA
United Airlines · Newark, NJ to Chattanooga, TN · 59 flights observed, 2026-01-07 to 2026-03-27 · 718 mi
UA4578 covers more than one route in the data window — the stats below are for EWR → CHA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-14 min
90th percentile
+59 min
Cancellation rate
8%
How often is UA4578 on time?
Across 59 flights on EWR → CHA from 2026-01-07 to 2026-03-27, UA4578 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +59 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 39 | 72% |
| 16-30 min | 7 | 13% |
| 31-60 min | 2 | 4% |
| 61-120 min | 5 | 9% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 15 | 80% | +2 min |
| 2026-02 | 19 | 68% | +1 min |
| 2026-03 | 20 | 70% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 67% |
| Tue | 1 | 100% |
| Wed | 12 | 83% |
| Thu | 11 | 73% |
| Fri | 12 | 67% |
| Sat | No data | — |
| Sun | 9 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…