UA4592 STL → ORD

United Airlines · St. Louis, MO to Chicago, IL · 53 flights observed, 2026-03-29 to 2026-05-20 · 258 mi

This flight's reliability varies a lot by day of week — 86% on-time on Fridays vs. 50% on Sundays.

UA4592 covers more than one route in the data window — the stats below are for STL → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
66%
Median delay
-1 min
90th percentile
+95 min
Cancellation rate
6%

How often is UA4592 on time?

Across 53 flights on STL → ORD from 2026-03-29 to 2026-05-20, UA4592 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +95 min or later. 6% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3366%
16-30 min510%
31-60 min612%
61-120 min12%
2+ hrs510%

Performance by month

MonthFlightsOn-timeAvg delay
2026-03333%+90 min
2026-042868%+13 min
2026-051968%+29 min

Performance by day of week

DayFlightsOn-time
Mon667%
Tue863%
Wed875%
Thu667%
Fri786%
Sat757%
Sun850%

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