Best Time to Fly RDU to HOU: On-Time Stats by Hour & Airline
Raleigh-Durham International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.9% of Raleigh/Durham (RDU) to Houston (HOU) flights arrived on time (354 scheduled flights). That is 5.3 points above 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 (88% on time) and May the worst month (72%).
The cancellation rate was 0.8% (US average 1.8%).
RDU 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 | 82.9% | 41 min | 0.8% | 354 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly RDU to HOU
On-time arrival % by scheduled departure hour (local time), 722 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.9% | 0.0% | 62 |
| 7am–8am | Limited data | 5 | |
| 8am–9am | 96.3% | 5.3% | 57 |
| 9am–10am | Limited data | 16 | |
| 10am–11am | 95.0% | 1.6% | 61 |
| 11am–12pm | 94.4% | 0.0% | 36 |
| 12pm–1pm | Limited data | 19 | |
| 1pm–2pm | 83.0% | 0.0% | 59 |
| 2pm–3pm | 87.1% | 0.0% | 31 |
| 3pm–4pm | Limited data | 22 | |
| 4pm–5pm | 86.7% | 0.0% | 60 |
| 5pm–6pm | 81.9% | 0.0% | 127 |
| 6pm–7pm | 75.0% | 2.7% | 75 |
| 7pm–8pm | 75.6% | 0.0% | 82 |
| 8pm–9pm | Limited data | 10 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on RDU 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 | 17 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 77.1% | -7.9 pts | 0.0% | 35 |
| Summer peak (Jun 15 - Aug 15) | 87.4% | +2.3 pts | 0.0% | 120 |
| All other days | 85.1% | — | 1.3% | 550 |
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).