About 1 in 5 UA 4543 flights from Green Bay arrived 15+ minutes late, diverted or cancelled over the past year (20%); 0.7% were cancelled. The typical flight landed 3 minutes early.
UA 4543: GRB → ORD
Scheduled to leave Green Bay at 8:00 a.m. local time, operated by GoJet as G7 4543. Over the past year it arrived on time 80% of the time (138 flights), better than other UA flights on the route at that hour (74%). Last seen in the data Jun 24, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 18 | — |
| Tuesday | 22 | 82% |
| Wednesday | 22 | 86% |
| Thursday | 19 | — |
| Friday | 19 | — |
| Saturday | 19 | — |
| Sunday | 19 | — |
Why it was late
All flights GRB → ORD · Connecting off UA 4543? Check the risk
Questions
How often is UA 4543 from GRB to ORD late?
United Airlines 4543 from Green Bay, WI to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 20% of 138 scheduled flights between September 2025 and August 2026. 0.7% 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.