Best Time to Fly HOU to RDU: On-Time Stats by Hour & Airline
William P Hobby → Raleigh-Durham International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 71.0% of Houston (HOU) to Raleigh/Durham (RDU) flights arrived on time (354 scheduled flights). That is 6.6 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
November has been the best month (88% on time) and Thursday the weakest day of the week (67%).
0.6% of flights were cancelled, versus 1.8% nationally.
HOU to RDU 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 | 71.0% | 44 min | 0.6% | 354 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to RDU
On-time arrival % by scheduled departure hour (local time), 722 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 1 | |
| 10am–11am | 88.7% | 0.0% | 62 |
| 11am–12pm | 81.2% | 1.4% | 146 |
| 12pm–1pm | Limited data | 9 | |
| 1pm–2pm | Limited data | 28 | |
| 2pm–3pm | 64.3% | 0.0% | 230 |
| 3pm–4pm | 62.9% | 0.8% | 133 |
| 4pm–5pm | 78.9% | 0.0% | 71 |
| 5pm–6pm | Limited data | 2 | |
| 6pm–7pm | Limited data | 15 | |
| 7pm–8pm | Limited data | 7 | |
| 8pm–9pm | Limited data | 18 | |
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 RDU
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) | 80.0% | +4.9 pts | 0.0% | 35 |
| Summer peak (Jun 15 - Aug 15) | 54.2% | -20.9 pts | 0.0% | 120 |
| All other days | 75.1% | — | 0.7% | 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).