Best Time to Fly PIT to HOU: On-Time Stats by Hour & Airline
Pittsburgh International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
316 flights were scheduled from Pittsburgh (PIT) to Houston (HOU) in the last 12 months, and 77.1% of those that flew arrived on time, 0.6 points below 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 (81% on time) and March the worst month (60%).
The cancellation rate was 0.3% (US average 1.8%).
PIT 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 | 77.1% | 48 min | 0.3% | 316 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PIT to HOU
On-time arrival % by scheduled departure hour (local time), 639 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 23 | |
| 6am–7am | Limited data | 1 | |
| 7am–8am | Limited data | 8 | |
| 8am–9am | Limited data | 7 | |
| 9am–10am | Limited data | 9 | |
| 10am–11am | Limited data | 8 | |
| 11am–12pm | Limited data | 20 | |
| 12pm–1pm | 80.0% | 0.0% | 90 |
| 1pm–2pm | 86.3% | 0.0% | 51 |
| 2pm–3pm | Limited data | 15 | |
| 3pm–4pm | Limited data | 26 | |
| 4pm–5pm | Limited data | 8 | |
| 5pm–6pm | 72.0% | 0.4% | 252 |
| 6pm–7pm | 58.6% | 1.4% | 71 |
| 7pm–8pm | 56.0% | 0.0% | 50 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PIT 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 | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 60.0% | -17.2 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 67.5% | -9.8 pts | 0.0% | 123 |
| All other days | 77.2% | — | 0.6% | 474 |
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).