Houston (IAH) to Jacksonville (JAX): On-Time Performance
Data through July 2026
Houston (IAH) to Jacksonville (JAX) effectively runs on two schedules. In November 2024, 95% of arrivals were on time; in July 2026 that fell to 47% — a 48-point seasonal swing. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 73%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 1.9
- last 12 months
- Duration
- 2h 14m
- scheduled
- Distance
- 816 mi
Monthly on-time trend
Best time to fly from IAH to JAX
Aim for departures around 7 a.m. (89% on-time); avoid 4 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 21 min |
| Tuesdaybest | 82% | 9 min |
| Wednesday | 74% | 19 min |
| Thursday | 73% | 19 min |
| Friday | 72% | 20 min |
| Saturday | 75% | 17 min |
| Sunday | 70% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations29%
- National airspace system15%
- Weather12%
Frequently asked questions
- How often are flights from IAH to JAX delayed?
- 26% of IAH–JAX 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 18 minutes.
- What is the best time of day to fly from IAH to JAX?
- Departures around 7 a.m. have the best record (89% on-time), while departures around 4 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAH to JAX?
- The scheduled IAH–JAX flight time averages 2h 14m over 816 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are IAH to JAX flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from IAH to JAX?
- July 2026 was the roughest month in this dataset, with only 47% of arrivals on time. The best was November 2024 at 95%. If your dates are flexible, that 48-point gap is worth planning around.
Explore related pages
More routes from IAH
Other ways to fly to Jacksonville (JAX)
Related guides
Based on 1,464 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.