Jacksonville (JAX) to Houston (IAH): On-Time Performance
Data through May 2026
Jacksonville (JAX) to Houston (IAH) effectively runs on two schedules. In March 2025, 97% of arrivals were on time; in December 2024 that fell to 73% — a 24-point seasonal swing. Across the full period the route averages 88% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 79%), which matters most in the rough months.
- On-time
- 88%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.5%
- Flights/day
- 2.0
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 816 mi
Monthly on-time trend
Best time to fly from JAX to IAH
Aim for departures around 6 a.m. (97% on-time); avoid 4 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 85% | 11 min |
| Tuesdaybest | 94% | 5 min |
| Wednesday | 90% | 9 min |
| Thursday | 85% | 11 min |
| Friday | 86% | 13 min |
| Saturday | 89% | 13 min |
| Sunday | 84% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft36%
- Airline operations31%
- National airspace system29%
- Weather4%
Frequently asked questions
- How often are flights from JAX to IAH delayed?
- 13% of JAX–IAH flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from JAX to IAH?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 4 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from JAX to IAH?
- The scheduled JAX–IAH flight time averages 2h 33m over 816 miles. Actual arrival times vary — flights on this route land 15+ minutes late 13% of the time.
- How often are JAX to IAH flights cancelled?
- 1.5% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from JAX to IAH?
- December 2024 was the roughest month in this dataset, with only 73% of arrivals on time. The best was March 2025 at 97%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 1,423 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.