Best Time to Fly TUS to HOU: On-Time Stats by Hour & Airline
Tucson International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 87.7% of Tucson (TUS) to Houston (HOU) flights arrived on time (171 scheduled flights). That is 10.1 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (94% on time) and December the worst month (75%).
The cancellation rate was 0.0% (US average 1.8%).
TUS 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 | 87.7% | 79 min | 0.0% | 171 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly TUS to HOU
On-time arrival % by scheduled departure hour (local time), 536 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.3% | 0.0% | 91 |
| 6am–7am | 94.2% | 0.0% | 69 |
| 7am–8am | Limited data | 8 | |
| 9am–10am | Limited data | 12 | |
| 10am–11am | 91.9% | 0.0% | 75 |
| 11am–12pm | Limited data | 7 | |
| 12pm–1pm | Limited data | 6 | |
| 1pm–2pm | 92.9% | 0.0% | 85 |
| 2pm–3pm | 88.0% | 1.3% | 76 |
| 3pm–4pm | 71.7% | 2.1% | 47 |
| 4pm–5pm | 71.7% | 2.1% | 47 |
| 5pm–6pm | Limited data | 13 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on TUS 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 | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 26 | ||
| Summer peak (Jun 15 - Aug 15) | 85.5% | -3.7 pts | 0.0% | 77 |
| All other days | 89.2% | — | 0.7% | 420 |
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).