Jacksonville (JAX) to Houston (IAH): On-Time Performance
Data through July 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 87% 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
- 87%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 1.9
- 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 (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 85% | 11 min |
| Tuesdaybest | 93% | 12 min |
| Wednesday | 91% | 8 min |
| Thursday | 85% | 11 min |
| Friday | 85% | 14 min |
| Saturday | 89% | 12 min |
| Sunday | 83% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations31%
- National airspace system27%
- Weather2%
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 2024-07 and 2026-07. The average arrival delay across completed flights was 12 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 (70%). 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?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What 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 1,449 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.