Best Time to Fly DFW to MIA: On-Time Stats by Hour & Airline
Dallas/Fort Worth International → Miami International
Data through July 2026 · Last updated October 18, 2026
4,822 flights were scheduled from Dallas/Fort Worth (DFW) to Miami (MIA) in the last 12 months, and 68.3% of those that flew arrived on time, 9.3 points below the US average of 77.6%.
Spirit Airlines was the most punctual of the 3 airlines on the route at 80.7%, while American Airlines trailed at 67.6%.
September has been the best month (76% on time) and Saturday the weakest day of the week (66%).
2.5% of flights were cancelled, versus 1.8% nationally.
DFW 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 |
|---|---|---|---|---|
| Spirit Airlines | 80.7% | 62 min | 2.4% | 249 |
| Frontier Airlines | 67.9% | 108 min | 1.9% | 270 |
| American Airlines | 67.6% | 73 min | 2.6% | 4,303 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DFW to MIA
On-time arrival % by scheduled departure hour (local time), 9,618 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 84.4% | 1.8% | 892 |
| 6am–7am | 81.9% | 1.4% | 763 |
| 7am–8am | 79.2% | 1.3% | 860 |
| 8am–9am | 79.1% | 1.8% | 743 |
| 9am–10am | 74.3% | 1.6% | 194 |
| 10am–11am | 77.9% | 1.0% | 834 |
| 11am–12pm | 76.4% | 0.0% | 55 |
| 12pm–1pm | 69.5% | 1.6% | 636 |
| 1pm–2pm | 75.9% | 2.1% | 145 |
| 2pm–3pm | 58.9% | 1.4% | 635 |
| 3pm–4pm | 53.5% | 1.5% | 399 |
| 4pm–5pm | 62.2% | 2.4% | 674 |
| 5pm–6pm | 64.8% | 2.3% | 602 |
| 6pm–7pm | 57.0% | 2.8% | 641 |
| 7pm–8pm | 60.2% | 3.4% | 612 |
| 8pm–9pm | 53.2% | 4.6% | 695 |
| 9pm–10pm | 57.4% | 3.0% | 237 |
| 10pm–11pm | 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 DFW 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) | 74.4% | +2.5 pts | 0.0% | 195 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.1% | -3.7 pts | 1.9% | 368 |
| Summer peak (Jun 15 - Aug 15) | 58.4% | -13.4 pts | 1.8% | 1,649 |
| All other days | 71.8% | — | 2.2% | 7,406 |
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).