About 1 in 2 UA 4603 flights from Madison arrived 15+ minutes late, diverted or cancelled over the past year (50%); 7.9% were cancelled. The typical flight landed 7 minutes late.
UA 4603: MSN → ORD
Scheduled to leave Madison at 5:45 p.m. local time, operated by GoJet as G7 4603. Over the past year it arrived on time 50% of the time (139 flights), better than other UA flights on the route at that hour (44%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Madison to Chicago (98% of days). United Airlines's last MSN–ORD flight was cancelled 6.0% of the time, against 3.1% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 5:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 23 | 57% |
| Tuesday | 17 | — |
| Wednesday | 16 | — |
| Thursday | 22 | 41% |
| Friday | 22 | 45% |
| Saturday | 17 | — |
| Sunday | 22 | 41% |
Why it was late
All flights MSN → ORD · Connecting off UA 4603? Check the risk
Questions
How often is UA 4603 from MSN to ORD late?
United Airlines 4603 from Madison, WI to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 50% of 139 scheduled flights between September 2025 and August 2026. 7.9% 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.