UA4523 TUL → ORD

United Airlines · Tulsa, OK to Chicago, IL · 21 flights observed, 2026-04-30 to 2026-05-20 · 585 mi

UA4523 covers more than one route in the data window — the stats below are for TUL → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
55%
Median delay
+5 min
90th percentile
+111 min
Cancellation rate
5%

How often is UA4523 on time?

Across 21 flights on TUL → ORD from 2026-04-30 to 2026-05-20, UA4523 arrived within 15 minutes of schedule 55% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +111 min or later. 5% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1155%
16-30 min420%
31-60 min00%
61-120 min315%
2+ hrs210%

Performance by month

MonthFlightsOn-timeAvg delay
2026-041100%-15 min
2026-051953%+25 min

Performance by day of week

DayFlightsOn-time
Mon250%
Tue367%
Wed367%
Thu367%
Fri333%
Sat3100%
Sun30%

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