Best Time to Fly DTW to MIA: On-Time Stats by Hour & Airline
Detroit Metro Wayne County → Miami International
Data through July 2026 · Last updated October 18, 2026
1,777 flights were scheduled from Detroit (DTW) to Miami (MIA) in the last 12 months, and 80.5% of those that flew arrived on time, 2.8 points above the US average of 77.6%.
Among 5 airlines, American Airlines led with 89.5% on time and Frontier Airlines was last with 66.7%.
Over 24 months, Tuesday was the most reliable day (88% on time) and January the worst month (64%).
The cancellation rate was 1.4% (US average 1.8%).
DTW 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 |
|---|---|---|---|---|
| American Airlines | 89.5% | 94 min | 1.0% | 394 |
| Envoy Air | 79.3% | 72 min | 0.0% | 92 |
| Spirit Airlines | 78.7% | 64 min | 3.6% | 278 |
| Delta Air Lines | 78.3% | 56 min | 1.0% | 939 |
| Frontier Airlines | 66.7% | 96 min | 1.6% | 64 |
| Republic Airways | Limited data | 10 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DTW to MIA
On-time arrival % by scheduled departure hour (local time), 3,466 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 83.1% | 2.2% | 267 |
| 6am–7am | 88.9% | 0.8% | 664 |
| 7am–8am | 80.4% | 0.9% | 330 |
| 8am–9am | 86.4% | 0.5% | 393 |
| 9am–10am | 89.6% | 1.3% | 78 |
| 10am–11am | 63.3% | 6.2% | 32 |
| 11am–12pm | 75.0% | 0.0% | 32 |
| 12pm–1pm | 66.2% | 1.4% | 69 |
| 1pm–2pm | 75.1% | 0.4% | 247 |
| 2pm–3pm | 75.2% | 1.5% | 324 |
| 3pm–4pm | 73.2% | 1.2% | 85 |
| 4pm–5pm | 66.4% | 0.9% | 108 |
| 5pm–6pm | 68.9% | 3.2% | 93 |
| 6pm–7pm | 75.2% | 0.2% | 514 |
| 7pm–8pm | 75.0% | 0.9% | 105 |
| 8pm–9pm | 58.9% | 0.0% | 124 |
| 9pm–10pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DTW 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) | 56.2% | -24.4 pts | 0.0% | 64 |
| Christmas & New Year (Dec 20 - Jan 3) | 56.3% | -24.3 pts | 1.8% | 170 |
| Summer peak (Jun 15 - Aug 15) | 81.8% | +1.2 pts | 1.2% | 483 |
| All other days | 80.6% | — | 0.9% | 2,749 |
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).