Best Time to Fly IAH to CHA: On-Time Stats by Hour & Airline
George Bush Intercontinental/Houston → Lovell Field
Data through July 2026 · Last updated October 18, 2026
248 flights were scheduled from Houston (IAH) to Chattanooga (CHA) in the last 12 months, and 66.8% of those that flew arrived on time, 10.8 points below the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (83% on time) and May the worst month (61%).
The cancellation rate was 0.0% (US average 1.8%).
IAH to CHA 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 |
|---|---|---|---|---|
| SkyWest Airlines | 66.8% | 117 min | 0.0% | 248 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAH to CHA
On-time arrival % by scheduled departure hour (local time), 248 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12pm–1pm | 66.7% | 0.0% | 124 |
| 7pm–8pm | 68.9% | 0.0% | 103 |
| 8pm–9pm | Limited data | 21 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on IAH to CHA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Summer peak (Jun 15 - Aug 15) | 68.8% | +3.2 pts | 0.0% | 94 |
| All other days | 65.6% | — | 0.0% | 154 |
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).