Best Time to Fly HOU to PIT: On-Time Stats by Hour & Airline
William P Hobby → Pittsburgh International
Data through July 2026 · Last updated October 18, 2026
316 flights were scheduled from Houston (HOU) to Pittsburgh (PIT) in the last 12 months, and 72.0% of those that flew arrived on time, 5.7 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (80% on time) and June the worst month (57%).
The cancellation rate was 0.6% (US average 1.8%).
HOU to PIT 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 | 72.0% | 47 min | 0.6% | 316 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to PIT
On-time arrival % by scheduled departure hour (local time), 640 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 1 | |
| 8am–9am | Limited data | 5 | |
| 10am–11am | 80.0% | 1.2% | 86 |
| 11am–12pm | Limited data | 26 | |
| 12pm–1pm | 72.3% | 0.0% | 65 |
| 1pm–2pm | 74.4% | 0.0% | 133 |
| 2pm–3pm | 81.8% | 0.0% | 66 |
| 3pm–4pm | 63.8% | 1.2% | 81 |
| 4pm–5pm | 75.0% | 0.0% | 44 |
| 5pm–6pm | Limited data | 13 | |
| 6pm–7pm | 66.2% | 0.0% | 68 |
| 7pm–8pm | 68.9% | 0.0% | 45 |
| 8pm–9pm | Limited data | 7 | |
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 PIT
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 | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 60.0% | -17.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 61.0% | -16.2 pts | 0.0% | 123 |
| All other days | 77.2% | — | 0.4% | 475 |
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).