United Airlines · Newark, NJ to Greensboro/High Point, NC · 148 flights observed, 2025-10-26 to 2026-03-28 · 445 mi
UA4509 covers more than one route in the data window — the stats below are for EWR → GSO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4509 on time?
Across 148 flights on EWR → GSO from 2025-10-26 to 2026-03-28, UA4509 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +103 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 97 | 68% |
| 16-30 min | 9 | 6% |
| 31-60 min | 13 | 9% |
| 61-120 min | 10 | 7% |
| 2+ hrs | 14 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 5 | 60% | +19 min |
| 2025-11 | 27 | 63% | +38 min |
| 2025-12 | 29 | 52% | +74 min |
| 2026-01 | 29 | 66% | +14 min |
| 2026-02 | 25 | 88% | -10 min |
| 2026-03 | 28 | 75% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 55% |
| Tue | 21 | 71% |
| Wed | 21 | 67% |
| Thu | 21 | 76% |
| Fri | 22 | 73% |
| Sat | 17 | 65% |
| Sun | 21 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…