Greensboro/High Point (GSO) to Miami (MIA): On-Time Performance
Data through May 2026
The calendar drives reliability on GSO–MIA. August 2024 flights landed on schedule 100% of the time, but December 2025 dropped to 78% — a gap of 22 points. Across the full period the route averages 89% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 80%), which matters most in the rough months.
- On-time
- 89%
- arrived <15 min late
- Avg delay
- 7 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 1.3
- last 12 months
- Duration
- 2h 9m
- scheduled
- Distance
- 710 mi
Monthly on-time trend
Best time to fly from GSO to MIA
Aim for departures around 7 a.m. (91% on-time); avoid 7 p.m. departures (80%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 87% | 8 min |
| Tuesday | 88% | 14 min |
| Wednesday | 90% | 6 min |
| Thursday | 88% | 7 min |
| Fridaybest | 92% | 3 min |
| Saturday | 87% | 6 min |
| Sunday | 91% | 6 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft22%
- Airline operations51%
- National airspace system24%
- Weather4%
Frequently asked questions
- How often are flights from GSO to MIA delayed?
- 11% of GSO–MIA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 7 minutes.
- What is the best time of day to fly from GSO to MIA?
- Departures around 7 a.m. have the best record (91% on-time), while departures around 7 p.m. have the worst (80%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GSO to MIA?
- The scheduled GSO–MIA flight time averages 2h 9m over 710 miles. Actual arrival times vary — flights on this route land 15+ minutes late 11% of the time.
- How often are GSO to MIA flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from GSO to MIA?
- December 2025 was the roughest month in this dataset, with only 78% of arrivals on time. The best was August 2024 at 100%. If your dates are flexible, that 22-point gap is worth planning around.
Explore related pages
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Based on 914 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.