Best Time to Fly MIA to CVG: On-Time Stats by Hour & Airline
Miami International → Cincinnati/Northern Kentucky International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.5% of Miami (MIA) to Cincinnati (CVG) flights arrived on time (983 scheduled flights). That is 0.9 points above the national average of 77.6%.
Envoy Air was the most punctual of the 3 airlines on the route at 80.0%, while Frontier Airlines trailed at 68.2%.
October has been the best month (88% on time) and Sunday the weakest day of the week (71%).
0.9% of flights were cancelled, versus 1.8% nationally.
MIA to CVG 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 | 80.0% | 44 min | 0.6% | 788 |
| American Airlines | 78.7% | 102 min | 1.3% | 76 |
| Frontier Airlines | 68.2% | 88 min | 2.6% | 113 |
| Delta Air Lines | Limited data | 1 | ||
| Republic Airways | Limited data | 5 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to CVG
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 | Limited data | 3 | |
| 6am–7am | Limited data | 11 | |
| 7am–8am | Limited data | 11 | |
| 8am–9am | 95.4% | 0.0% | 87 |
| 9am–10am | Limited data | 29 | |
| 10am–11am | 86.5% | 0.0% | 52 |
| 11am–12pm | Limited data | 27 | |
| 12pm–1pm | Limited data | 12 | |
| 1pm–2pm | 70.7% | 0.0% | 42 |
| 2pm–3pm | 84.8% | 1.5% | 334 |
| 3pm–4pm | 61.8% | 1.3% | 77 |
| 4pm–5pm | 67.0% | 1.1% | 267 |
| 5pm–6pm | Limited data | 13 | |
| 6pm–7pm | 85.5% | 1.4% | 70 |
| 7pm–8pm | 76.7% | 1.0% | 624 |
| 8pm–9pm | 75.8% | 1.0% | 96 |
| 9pm–10pm | 78.9% | 2.0% | 247 |
| 10pm–11pm | 79.5% | 2.4% | 85 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MIA to CVG
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) | 67.5% | -12.8 pts | 0.0% | 40 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.6% | -8.8 pts | 0.0% | 109 |
| Summer peak (Jun 15 - Aug 15) | 68.3% | -12.0 pts | 0.7% | 286 |
| All other days | 80.3% | — | 1.4% | 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).