Best Time to Fly MIA to HOU: On-Time Stats by Hour & Airline
Miami International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
290 flights were scheduled from Miami (MIA) to Houston (HOU) in the last 12 months, and 72.2% of those that flew arrived on time, 5.4 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (89% on time) and March the worst month (70%).
The cancellation rate was 0.7% (US average 1.8%).
MIA to HOU 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 | 72.2% | 65 min | 0.7% | 290 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to HOU
On-time arrival % by scheduled departure hour (local time), 566 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.6% | 0.7% | 142 |
| 6am–7am | Limited data | 24 | |
| 7am–8am | Limited data | 26 | |
| 8am–9am | 87.9% | 0.0% | 34 |
| 9am–10am | Limited data | 1 | |
| 12pm–1pm | Limited data | 3 | |
| 2pm–3pm | Limited data | 12 | |
| 3pm–4pm | Limited data | 15 | |
| 4pm–5pm | 71.2% | 0.0% | 66 |
| 5pm–6pm | 66.2% | 0.0% | 71 |
| 6pm–7pm | 57.4% | 1.6% | 62 |
| 7pm–8pm | 58.6% | 0.0% | 99 |
| 8pm–9pm | Limited data | 10 | |
| 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 MIA to HOU
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 | 8 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 16 | ||
| Summer peak (Jun 15 - Aug 15) | 74.5% | -2.1 pts | 0.7% | 150 |
| All other days | 76.6% | — | 0.5% | 392 |
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).