ON TIMEBOARD

UA 4507 on time

United Airlines 4507: Chicago to Chattanooga at 5:50 p.m. (past 12 months)

On time
60%
184 flights · likely 53–67%
Cancelled
6.0%
of scheduled flights
Typical arrival
+2 min
median vs schedule
When late
+110 min
average delay
Similar flights
60%
UA, same route & hour

About 1 in 3 UA 4507 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (40%); 6.0% were cancelled. The typical flight landed 2 minutes late.

UA 4507: ORD → CHA

Scheduled to leave Chicago at 5:50 p.m. local time, operated by GoJet as G7 4507. Over the past year it arrived on time 60% of the time (184 flights), in line with other UA flights on the route at that hour (60%). Last seen in the data Aug 10, 2026.

Usually United Airlines's last flight of the day from Chicago to Chattanooga (64% of days). United Airlines's last ORD–CHA flight was cancelled 5.8% of the time, against 2.8% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 6:55 a.m. the next morning.

Month by month

30%65%100%Jul 2025: 43% on time (30 flights)43JulAug 2025: 56% on time (18 flights)56AugOct 2025: too few flights (6 flights)OctNov 2025: 59% on time (29 flights)59NovDec 2025: 53% on time (30 flights)53DecJan 2026: too few flights (5 flights)JanMar 2026: too few flights (3 flights)MarApr 2026: 48% on time (29 flights)48AprMay 2026: too few flights (11 flights)MayJun 2026: 63% on time (30 flights)63JunJul 2026: 68% on time (31 flights)68JulAug 2026: too few flights (10 flights)Aug

By day of week

DayFlightsOn time
Monday2850%
Tuesday2669%
Wednesday2560%
Thursday2556%
Friday2662%
Saturday2662%
Sunday2864%

Why it was late

Late inbound plane 57%Airline (crew, maintenance, ops) 22%Severe weather 12%Air traffic & airport (NAS) 10%

All flights ORD → CHA · Connecting off UA 4507? Check the risk

Questions

How often is UA 4507 from ORD to CHA late?

United Airlines 4507 from Chicago, IL to Chattanooga, TN arrived 15 or more minutes late, was diverted or was cancelled on 40% of 184 scheduled flights between September 2025 and August 2026. 6.0% 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.