Chattanooga (CHA) to Houston (IAH): On-Time Performance
Data through July 2026
Chattanooga (CHA) to Houston (IAH) is a thinner route than most in this dataset — 247 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 64% arrived on time, noticeably below the national average of 78%.
- On-time
- 64%
- arrived <15 min late
- Avg delay
- 39 min
- completed flights
- Cancelled
- 0.4%
- Flights/day
- 0.68
- last 12 months
- Duration
- 2h 25m
- scheduled
- Distance
- 686 mi
Best time to fly from CHA to IAH
Departure time makes little difference on this route — on-time rates stay within a few points across the day.
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 51% | 71 min |
| Tuesday | 67% | 28 min |
| Wednesdaybest | 72% | 21 min |
| Thursday | 63% | 30 min |
| Friday | 69% | 22 min |
| Saturday | 56% | 58 min |
| Sunday | 68% | 47 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft28%
- Airline operations47%
- National airspace system14%
- Weather11%
Frequently asked questions
- How often are flights from CHA to IAH delayed?
- 36% of CHA–IAH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 39 minutes.
- What is the best time of day to fly from CHA to IAH?
- Departures around 7 a.m. have the best record (64% on-time), while departures around 5 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CHA to IAH?
- The scheduled CHA–IAH flight time averages 2h 25m over 686 miles. Actual arrival times vary — flights on this route land 15+ minutes late 36% of the time.
- How often are CHA to IAH flights cancelled?
- 0.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What day of the week is most reliable for CHA to IAH?
- Wednesday flights have the best record at 72% on-time. Day-of-week differences on this route are meaningful — Monday trails at 51%.
Explore related pages
More routes from CHA
Other ways to fly to Houston (IAH)
Related guides
Based on 247 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.