Best Time to Fly MIA to GRR: On-Time Stats by Hour & Airline
Miami International → Gerald R. Ford International
Data through July 2026 · Last updated October 18, 2026
225 flights were scheduled from Miami (MIA) to Grand Rapids (GRR) in the last 12 months, and 67.9% of those that flew arrived on time, 9.7 points below the US average of 77.6%.
Among 2 airlines, Envoy Air led with 80.8% on time and American Airlines was last with 60.7%.
Over 24 months, Tuesday was the most reliable day (81% on time) and March the worst month (54%).
The cancellation rate was 1.3% (US average 1.8%).
MIA to GRR 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 | 80.8% | 38 min | 0.0% | 79 |
| American Airlines | 60.7% | 82 min | 2.0% | 146 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to GRR
On-time arrival % by scheduled departure hour (local time), 406 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | Limited data | 4 | |
| 4pm–5pm | Limited data | 1 | |
| 7pm–8pm | 59.5% | 2.4% | 124 |
| 8pm–9pm | 75.5% | 0.4% | 246 |
| 9pm–10pm | 96.7% | 0.0% | 31 |
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 GRR
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) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 53.3% | -21.4 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | Limited data | 13 | ||
| All other days | 74.7% | — | 1.1% | 349 |
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).