About 1 in 9 AA 3640 flights from Greensboro arrived 15+ minutes late, diverted or cancelled over the past year (11%); 1.1% were cancelled. The typical flight landed 11 minutes early.
AA 3640: GSO → MIA
Scheduled to leave Greensboro at 7:10 a.m. local time, operated by Envoy as MQ 3640. Over the past year it arrived on time 89% of the time (365 flights), in line with other AA flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 89% |
| Tuesday | 52 | 92% |
| Wednesday | 52 | 87% |
| Thursday | 52 | 90% |
| Friday | 52 | 94% |
| Saturday | 52 | 85% |
| Sunday | 52 | 88% |
Why it was late
All flights GSO → MIA · Connecting off AA 3640? Check the risk
Questions
How often is AA 3640 from GSO to MIA late?
American Airlines 3640 from Greensboro/High Point, NC to Miami, FL arrived 15 or more minutes late, was diverted or was cancelled on 11% of 365 scheduled flights between September 2025 and August 2026. 1.1% 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.