UA556 EWR → PHX

United Airlines · Newark, NJ to Phoenix, AZ · 19 flights observed, 2025-12-18 to 2026-01-05 · 2,133 mi

This flight has been getting less reliable recently — 2026-01's on-time rate (60%) is well below the 86% average from earlier months.

UA556 covers more than one route in the data window — the stats below are for EWR → PHX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
79%
Median delay
-10 min
90th percentile
+33 min
Cancellation rate
0%

How often is UA556 on time?

Across 19 flights on EWR → PHX from 2025-12-18 to 2026-01-05, UA556 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +33 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1579%
16-30 min211%
31-60 min15%
61-120 min00%
2+ hrs15%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121486%-5 min
2026-01560%+27 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue2100%
Wed2100%
Thu367%
Fri3100%
Sat367%
Sun333%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…