ON TIMEBOARD

UA 4566 on time

United Airlines 4566: State College to Chicago at 1:56 p.m. (past 12 months)

On time
73%
304 flights · likely 68–78%
Cancelled
2.3%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+133 min
average delay
Similar flights
68%
UA, same route & hour

About 1 in 4 UA 4566 flights from State College arrived 15+ minutes late, diverted or cancelled over the past year (27%); 2.3% were cancelled. The typical flight landed 9 minutes early.

UA 4566: SCE → ORD

Scheduled to leave State College at 1:56 p.m. local time, operated by GoJet as G7 4566. Over the past year it arrived on time 73% of the time (304 flights), better than other UA flights on the route at that hour (68%). Last seen in the data Aug 10, 2026.

Month by month

40%70%100%Sep 2025: 86% on time (29 flights)86SepOct 2025: 83% on time (30 flights)83OctNov 2025: 73% on time (26 flights)73NovDec 2025: 53% on time (17 flights)53DecJan 2026: 56% on time (18 flights)56JanFeb 2026: 83% on time (24 flights)83FebMar 2026: 74% on time (31 flights)74MarApr 2026: 67% on time (30 flights)67AprMay 2026: 64% on time (28 flights)64MayJun 2026: 80% on time (30 flights)80JunJul 2026: 74% on time (31 flights)74JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday4777%
Tuesday3876%
Wednesday4178%
Thursday4576%
Friday4370%
Saturday4667%
Sunday4470%

Why it was late

Late inbound plane 61%Air traffic & airport (NAS) 29%Airline (crew, maintenance, ops) 9%Severe weather 2%

All flights SCE → ORD · Connecting off UA 4566? Check the risk

Questions

How often is UA 4566 from SCE to ORD late?

United Airlines 4566 from State College, PA to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 27% of 304 scheduled flights between September 2025 and August 2026. 2.3% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.