Best Time to Fly HOU to PHX: On-Time Stats by Hour & Airline
William P Hobby → Phoenix Sky Harbor International
Data through July 2026 · Last updated October 18, 2026
2,098 flights were scheduled from Houston (HOU) to Phoenix (PHX) in the last 12 months, and 76.9% of those that flew arrived on time, 0.7 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
February has been the best month (89% on time) and Sunday the weakest day of the week (78%).
0.5% of flights were cancelled, versus 1.8% nationally.
HOU to PHX 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 | 76.9% | 51 min | 0.5% | 2,098 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to PHX
On-time arrival % by scheduled departure hour (local time), 4,251 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 97.4% | 1.5% | 195 |
| 6am–7am | 96.1% | 0.6% | 334 |
| 7am–8am | 95.1% | 0.4% | 227 |
| 8am–9am | 88.8% | 1.1% | 433 |
| 9am–10am | 91.5% | 0.0% | 177 |
| 10am–11am | 91.7% | 0.0% | 36 |
| 11am–12pm | 81.4% | 1.2% | 163 |
| 12pm–1pm | 81.2% | 1.0% | 307 |
| 1pm–2pm | 79.9% | 1.0% | 201 |
| 2pm–3pm | 75.0% | 0.3% | 285 |
| 3pm–4pm | 73.5% | 0.5% | 205 |
| 4pm–5pm | 85.5% | 0.0% | 221 |
| 5pm–6pm | 67.4% | 0.5% | 220 |
| 6pm–7pm | 72.8% | 0.0% | 206 |
| 7pm–8pm | 59.0% | 0.0% | 273 |
| 8pm–9pm | 75.8% | 0.4% | 274 |
| 9pm–10pm | 68.6% | 0.5% | 211 |
| 10pm–11pm | 70.7% | 0.0% | 283 |
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 PHX
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) | 87.8% | +6.7 pts | 0.0% | 90 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.6% | +1.5 pts | 0.5% | 196 |
| Summer peak (Jun 15 - Aug 15) | 74.8% | -6.3 pts | 0.5% | 662 |
| All other days | 81.1% | — | 0.6% | 3,303 |
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).