About 1 in 2 UA 5140 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (43%); 8.0% were cancelled. The typical flight landed 1 minutes late.
UA 5140: ORD → CMX
Scheduled to leave Chicago at 9:25 p.m. local time, operated by SkyWest as OO 5140. Over the past year it arrived on time 57% of the time (364 flights), in line with other UA flights on the route at that hour (57%). Last seen in the data Aug 31, 2026.
Usually United Airlines's last flight of the day from Chicago to Hancock (100% of days). United Airlines's last ORD–CMX flight was cancelled 8.0% of the time, against 6.4% for its earlier ones. If it's cancelled, the next United Airlines flight is usually around 11:55 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 66% |
| Tuesday | 52 | 60% |
| Wednesday | 52 | 50% |
| Thursday | 51 | 55% |
| Friday | 52 | 60% |
| Saturday | 52 | 63% |
| Sunday | 52 | 42% |
Why it was late
All flights ORD → CMX · Connecting off UA 5140? Check the risk
Questions
How often is UA 5140 from ORD to CMX late?
United Airlines 5140 from Chicago, IL to Hancock/Houghton, MI arrived 15 or more minutes late, was diverted or was cancelled on 43% of 364 scheduled flights between September 2025 and August 2026. 8.0% 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.