About 1 in 6 AA 4085 flights from Columbus arrived 15+ minutes late, diverted or cancelled over the past year (18%); 0.0% were cancelled. The typical flight landed 5 minutes early.
AA 4085: CMH → MIA
Scheduled to leave Columbus at 6:19 p.m. local time, operated by Envoy as MQ 4085. Over the past year it arrived on time 82% of the time (132 flights), in line with other AA flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.
Usually American Airlines's last flight of the day from Columbus to Miami (100% of days). American Airlines's last CMH–MIA flight was cancelled 0.3% of the time, against 0.1% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 5:08 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 20 | 90% |
| Tuesday | 19 | — |
| Wednesday | 18 | — |
| Thursday | 19 | — |
| Friday | 19 | — |
| Saturday | 19 | — |
| Sunday | 18 | — |
Why it was late
All flights CMH → MIA · Connecting off AA 4085? Check the risk
Questions
How often is AA 4085 from CMH to MIA late?
American Airlines 4085 from Columbus, OH to Miami, FL arrived 15 or more minutes late, was diverted or was cancelled on 18% of 132 scheduled flights between September 2025 and August 2026. 0.0% 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 American Airlines for today's flight. Method.