Best Time to Fly CHS to HOU: On-Time Stats by Hour & Airline
Charleston AFB/International → William P Hobby
Data through July 2026 · Last updated October 18, 2026
193 flights were scheduled from Charleston (CHS) to Houston (HOU) in the last 12 months, and 79.8% of those that flew arrived on time, 2.2 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Friday was the most reliable day (86% on time) and June the worst month (57%).
The cancellation rate was 0.0% (US average 1.8%).
CHS 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 | 79.8% | 42 min | 0.0% | 193 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CHS to HOU
On-time arrival % by scheduled departure hour (local time), 420 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.5% | 0.0% | 111 |
| 6am–7am | 100.0% | 0.0% | 41 |
| 10am–11am | Limited data | 9 | |
| 12pm–1pm | 78.0% | 0.0% | 52 |
| 1pm–2pm | Limited data | 12 | |
| 2pm–3pm | Limited data | 11 | |
| 3pm–4pm | 79.5% | 0.0% | 73 |
| 4pm–5pm | 67.7% | 0.0% | 31 |
| 5pm–6pm | Limited data | 9 | |
| 6pm–7pm | Limited data | 16 | |
| 7pm–8pm | 67.4% | 0.0% | 46 |
| 8pm–9pm | Limited data | 9 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CHS 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 | 11 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 22 | ||
| Summer peak (Jun 15 - Aug 15) | 70.8% | -12.6 pts | 0.0% | 91 |
| All other days | 83.4% | — | 0.0% | 296 |
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).