Best Time to Fly HOU to TUS: On-Time Stats by Hour & Airline
William P Hobby → Tucson International
Data through July 2026 · Last updated October 18, 2026
171 flights were scheduled from Houston (HOU) to Tucson (TUS) in the last 12 months, and 87.1% of those that flew arrived on time, 9.5 points above the US 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 (87% on time) and May the worst month (65%).
The cancellation rate was 0.0% (US average 1.8%).
HOU to TUS 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 | 87.1% | 44 min | 0.0% | 171 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to TUS
On-time arrival % by scheduled departure hour (local time), 536 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 18 | |
| 8am–9am | 95.2% | 2.3% | 86 |
| 9am–10am | 89.1% | 0.0% | 46 |
| 10am–11am | Limited data | 1 | |
| 11am–12pm | 93.8% | 0.0% | 48 |
| 12pm–1pm | 89.5% | 0.0% | 38 |
| 1pm–2pm | 81.2% | 0.0% | 96 |
| 2pm–3pm | 77.1% | 0.0% | 48 |
| 3pm–4pm | 83.9% | 0.0% | 31 |
| 4pm–5pm | Limited data | 1 | |
| 5pm–6pm | Limited data | 29 | |
| 8pm–9pm | Limited data | 25 | |
| 9pm–10pm | Limited data | 17 | |
| 10pm–11pm | 78.4% | 1.9% | 52 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on HOU to TUS
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) | 85.7% | +1.5 pts | 0.0% | 77 |
| All other days | 84.2% | — | 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).