Best Time to Fly MEM to HOU: On-Time Stats by Hour & Airline
Memphis International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
831 flights were scheduled from Memphis (MEM) to Houston (HOU) in the last 12 months, and 77.6% of those that flew arrived on time, in line with the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (88% on time) and Sunday the weakest day of the week (72%).
0.7% of flights were cancelled, versus 1.8% nationally.
MEM 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 | 77.6% | 48 min | 0.7% | 831 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MEM to HOU
On-time arrival % by scheduled departure hour (local time), 1,617 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.7% | 1.4% | 345 |
| 6am–7am | 92.7% | 2.2% | 226 |
| 7am–8am | 97.8% | 0.0% | 46 |
| 8am–9am | Limited data | 23 | |
| 9am–10am | Limited data | 9 | |
| 10am–11am | 84.6% | 0.0% | 53 |
| 11am–12pm | 84.5% | 1.2% | 85 |
| 12pm–1pm | 65.1% | 0.0% | 166 |
| 1pm–2pm | Limited data | 21 | |
| 2pm–3pm | Limited data | 5 | |
| 4pm–5pm | Limited data | 2 | |
| 5pm–6pm | 85.6% | 1.1% | 91 |
| 6pm–7pm | 74.3% | 0.9% | 229 |
| 7pm–8pm | 65.8% | 0.5% | 200 |
| 8pm–9pm | 60.9% | 0.9% | 116 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MEM 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) | 73.3% | -9.5 pts | 0.0% | 30 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.7% | -2.1 pts | 1.7% | 58 |
| Summer peak (Jun 15 - Aug 15) | 68.5% | -14.4 pts | 0.3% | 299 |
| All other days | 82.8% | — | 1.1% | 1,230 |
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).