Best Time to Fly CVG to MIA: On-Time Stats by Hour & Airline
Cincinnati/Northern Kentucky International → Miami International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.0% of Cincinnati (CVG) to Miami (MIA) flights arrived on time (983 scheduled flights). That is 3.4 points above the national average of 77.6%.
Envoy Air was the most punctual of the 3 airlines on the route at 83.3%, while Frontier Airlines trailed at 72.5%.
November has been the best month (92% on time) and Sunday the weakest day of the week (76%).
0.8% of flights were cancelled, versus 1.8% nationally.
CVG to MIA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Air | 83.3% | 51 min | 0.6% | 779 |
| American Airlines | 75.3% | 139 min | 1.3% | 76 |
| Frontier Airlines | 72.5% | 79 min | 1.8% | 112 |
| Republic Airways | Limited data | 15 | ||
| Delta Air Lines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CVG to MIA
On-time arrival % by scheduled departure hour (local time), 2,087 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.2% | 2.5% | 118 |
| 6am–7am | 86.2% | 0.7% | 673 |
| 7am–8am | 93.7% | 0.0% | 127 |
| 8am–9am | 81.5% | 1.6% | 303 |
| 9am–10am | Limited data | 11 | |
| 10am–11am | Limited data | 8 | |
| 11am–12pm | 76.9% | 3.6% | 55 |
| 12pm–1pm | Limited data | 12 | |
| 1pm–2pm | Limited data | 24 | |
| 2pm–3pm | Limited data | 10 | |
| 3pm–4pm | Limited data | 8 | |
| 4pm–5pm | Limited data | 8 | |
| 5pm–6pm | 69.0% | 1.4% | 145 |
| 6pm–7pm | 73.3% | 0.9% | 341 |
| 7pm–8pm | 66.1% | 1.4% | 222 |
| 8pm–9pm | Limited data | 17 | |
| 9pm–10pm | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CVG to MIA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 82.5% | +1.0 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.8% | -12.6 pts | 0.0% | 109 |
| Summer peak (Jun 15 - Aug 15) | 75.6% | -5.8 pts | 0.7% | 286 |
| All other days | 81.5% | — | 1.3% | 1,652 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).