Best Time to Fly DAL to MIA: On-Time Stats by Hour & Airline
Dallas Love Field → Miami International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 70.4% of Dallas (DAL) to Miami (MIA) flights arrived on time (417 scheduled flights). That is 7.2 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (91% on time) and Tuesday the weakest day of the week (68%).
2.2% of flights were cancelled, versus 1.8% nationally.
DAL 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 |
|---|---|---|---|---|
| Southwest Airlines | 70.4% | 65 min | 2.2% | 417 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DAL to MIA
On-time arrival % by scheduled departure hour (local time), 838 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 26 | |
| 7am–8am | 73.8% | 0.0% | 42 |
| 8am–9am | 79.5% | 2.2% | 45 |
| 9am–10am | 81.6% | 0.0% | 87 |
| 10am–11am | 79.2% | 3.6% | 56 |
| 11am–12pm | 78.6% | 2.6% | 116 |
| 12pm–1pm | 63.3% | 0.0% | 60 |
| 1pm–2pm | 58.8% | 1.4% | 70 |
| 2pm–3pm | 69.5% | 1.7% | 60 |
| 3pm–4pm | 59.1% | 0.0% | 44 |
| 4pm–5pm | 70.9% | 3.5% | 57 |
| 5pm–6pm | 64.9% | 0.0% | 77 |
| 6pm–7pm | 60.6% | 2.7% | 73 |
| 7pm–8pm | Limited data | 24 | |
| 8pm–9pm | 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 DAL 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) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 64.5% | -9.0 pts | 3.1% | 32 |
| Summer peak (Jun 15 - Aug 15) | 65.3% | -8.2 pts | 1.9% | 155 |
| All other days | 73.6% | — | 1.3% | 637 |
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).