UA231 ATL → EWR

United Airlines · Atlanta, GA to Newark, NJ · 31 flights observed, 2025-07-01 to 2025-07-31 · 746 mi

UA231 covers more than one route in the data window — the stats below are for ATL → EWR, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
86%
Median delay
-9 min
90th percentile
+17 min
Cancellation rate
6%

How often is UA231 on time?

Across 31 flights on ATL → EWR from 2025-07-01 to 2025-07-31, UA231 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +17 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2586%
16-30 min27%
31-60 min00%
61-120 min13%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072986%+2 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue4100%
Wed5100%
Thu5100%
Fri4100%
Sat450%
Sun450%

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