Best Time to Fly HOU to CMH: On-Time Stats by Hour & Airline
William P Hobby → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
355 flights were scheduled from Houston (HOU) to Columbus (CMH) in the last 12 months, and 76.5% of those that flew arrived on time, 1.1 points below the US 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 (83% on time) and July the worst month (53%).
The cancellation rate was 0.3% (US average 1.8%).
HOU to CMH 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 | 76.5% | 50 min | 0.3% | 355 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to CMH
On-time arrival % by scheduled departure hour (local time), 716 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | Limited data | 1 | |
| 10am–11am | 75.0% | 0.0% | 52 |
| 11am–12pm | 80.3% | 1.6% | 62 |
| 12pm–1pm | 83.3% | 0.0% | 31 |
| 1pm–2pm | 80.4% | 1.1% | 93 |
| 2pm–3pm | 60.0% | 0.0% | 30 |
| 3pm–4pm | 78.6% | 0.0% | 140 |
| 4pm–5pm | 71.6% | 0.0% | 67 |
| 5pm–6pm | Limited data | 14 | |
| 6pm–7pm | 67.1% | 0.0% | 74 |
| 7pm–8pm | 77.3% | 0.0% | 97 |
| 8pm–9pm | 56.9% | 0.0% | 51 |
| 9pm–10pm | Limited data | 4 | |
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 CMH
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) | 66.7% | -10.4 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 63.2% | -13.9 pts | 0.0% | 125 |
| All other days | 77.1% | — | 0.4% | 549 |
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).