Best Time to Fly OAK to HOU: On-Time Stats by Hour & Airline
Oakland International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.0% of Oakland (OAK) to Houston (HOU) flights arrived on time (376 scheduled flights). That is 0.6 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Monday was the most reliable day (87% on time) and July the worst month (53%).
The cancellation rate was 0.5% (US average 1.8%).
OAK 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 | 77.0% | 40 min | 0.5% | 376 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly OAK to HOU
On-time arrival % by scheduled departure hour (local time), 766 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 92.4% | 0.4% | 239 |
| 6am–7am | 93.2% | 1.2% | 165 |
| 7am–8am | 90.8% | 0.0% | 77 |
| 8am–9am | 78.4% | 0.0% | 37 |
| 9am–10am | Limited data | 19 | |
| 10am–11am | Limited data | 14 | |
| 11am–12pm | Limited data | 18 | |
| 12pm–1pm | Limited data | 19 | |
| 1pm–2pm | 50.9% | 0.0% | 116 |
| 2pm–3pm | Limited data | 21 | |
| 3pm–4pm | Limited data | 23 | |
| 4pm–5pm | Limited data | 17 | |
| 5pm–6pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on OAK 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 | 18 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 88.6% | +1.7 pts | 0.0% | 35 |
| Summer peak (Jun 15 - Aug 15) | 61.1% | -25.7 pts | 0.0% | 127 |
| All other days | 86.8% | — | 0.5% | 586 |
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).