About 1 in 3 UA 4171 flights from Birmingham arrived 15+ minutes late, diverted or cancelled over the past year (37%); 3.7% were cancelled. The typical flight landed 3 minutes early.
UA 4171: BHM → ORD
Scheduled to leave Birmingham at 1:42 p.m. local time, operated by GoJet as G7 4171. Over the past year it arrived on time 63% of the time (217 flights), in line with other UA flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Birmingham to Chicago (55% of days). United Airlines's last BHM–ORD flight was cancelled 3.9% of the time, against 2.1% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 7:18 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 31 | 55% |
| Tuesday | 31 | 65% |
| Wednesday | 31 | 55% |
| Thursday | 31 | 65% |
| Friday | 31 | 68% |
| Saturday | 31 | 74% |
| Sunday | 31 | 61% |
Why it was late
All flights BHM → ORD · Connecting off UA 4171? Check the risk
Questions
How often is UA 4171 from BHM to ORD late?
United Airlines 4171 from Birmingham, AL to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 37% of 217 scheduled flights between September 2025 and August 2026. 3.7% 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.