UA4558 BUF → EWR
United Airlines · Buffalo, NY to Newark, NJ · 55 flights observed, 2026-01-06 to 2026-03-04 · 282 mi
UA4558 covers more than one route in the data window — the stats below are for BUF → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
59%
Median delay
+2 min
90th percentile
+177 min
Cancellation rate
7%
How often is UA4558 on time?
Across 55 flights on BUF → EWR from 2026-01-06 to 2026-03-04, UA4558 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +177 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 | 30 | 59% |
| 16-30 min | 2 | 4% |
| 31-60 min | 1 | 2% |
| 61-120 min | 7 | 14% |
| 2+ hrs | 11 | 22% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 24 | 67% | +37 min |
| 2026-02 | 24 | 54% | +61 min |
| 2026-03 | 3 | 33% | +63 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 67% |
| Tue | 8 | 63% |
| Wed | 9 | 56% |
| Thu | 8 | 63% |
| Fri | 8 | 63% |
| Sat | 8 | 50% |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…