FlightRecord

Houston (IAH) to Jacksonville (JAX): On-Time Performance

Data through May 2026

Houston (IAH) to Jacksonville (JAX) effectively runs on two schedules. In November 2024, 95% of arrivals were on time; in July 2025 that fell to 51% — a 44-point seasonal swing. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (83% vs 74%), which matters most in the rough months.

On-time
75%
arrived <15 min late
Avg delay
18 min
completed flights
Cancelled
1.3%
Flights/day
2.0
last 12 months
Duration
2h 14m
scheduled
Distance
816 mi

Monthly on-time trend

Monthly on-time percentage for IAH to JAX flights50%75%100%June 2024: 65% on-time (61 flights)65Jun 2024July 2024: 57% on-time (61 flights)57August 2024: 78% on-time (65 flights)78September 2024: 73% on-time (65 flights)73Sep 2024October 2024: 82% on-time (88 flights)82November 2024: 95% on-time (60 flights)95December 2024: 63% on-time (61 flights)63Dec 2024January 2025: 80% on-time (58 flights)80February 2025: 78% on-time (54 flights)78March 2025: 64% on-time (36 flights)64Mar 2025April 2025: 77% on-time (30 flights)77May 2025: 68% on-time (82 flights)68June 2025: 66% on-time (57 flights)66Jun 2025July 2025: 51% on-time (56 flights)51August 2025: 69% on-time (36 flights)69September 2025: 92% on-time (36 flights)92Sep 2025October 2025: 87% on-time (68 flights)87November 2025: 83% on-time (88 flights)83December 2025: 75% on-time (63 flights)75Dec 2025January 2026: 93% on-time (61 flights)93February 2026: 77% on-time (56 flights)77March 2026: 71% on-time (62 flights)71Mar 2026April 2026: 82% on-time (61 flights)82May 2026: 67% on-time (75 flights)67

Best time to fly from IAH to JAX

Aim for departures around 7 a.m. (89% on-time); avoid 4 p.m. departures (60%).

On-time percentage by scheduled departure hour, IAH to JAX7 a.m.: 89% on-time (111 flights)78 a.m.: 73% on-time (26 flights)89 a.m.: 72% on-time (53 flights)910 a.m.: 86% on-time (69 flights)1012 p.m.: 71% on-time (209 flights)121 p.m.: 78% on-time (167 flights)134 p.m.: 60% on-time (74 flights)166 p.m.: 77% on-time (384 flights)187 p.m.: 81% on-time (115 flights)198 p.m.: 66% on-time (220 flights)20scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday72%20 min
Tuesdaybest84%8 min
Wednesday74%17 min
Thursday75%19 min
Friday73%20 min
Saturday75%17 min
Sunday71%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 operations28%
  • National airspace system14%
  • Weather12%

Frequently asked questions

How often are flights from IAH to JAX delayed?
25% of IAH–JAX 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 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 25% of the time.
How often are IAH to JAX flights cancelled?
1.3% 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 IAH to JAX?
July 2025 was the roughest month in this dataset, with only 51% of arrivals on time. The best was November 2024 at 95%. If your dates are flexible, that 44-point gap is worth planning around.

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Based on 1,440 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.