JAX to IAH flight delays & on-time performance
Nonstop flights from Jacksonville International Airport to George Bush Intercontinental Airport · 816 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at JAX or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Jacksonville (JAX) to Houston (IAH) arrived on time 88% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.4% were cancelled, and 5% arrived an hour or more late.
- Departures scheduled around 6am did best (97% on time); around 4pm did worst (71%).
- Tuesday was the most reliable day to fly (95% on time) and Sunday the least (81%).
- The largest source of delay minutes was late-arriving aircraft (42%).
Which airline is most on time from JAX to IAH?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 88% | 0.4% | 9 min | 4.7% | 668 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 68% | 0.0% | 75 min | 16.0% | 25 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am97%117 flights
- 7am92%244 flights
- 9am88%24 flights
- 11am90%70 flights
- 4pm71%85 flights
- 5pm81%148 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday85%0.0% cancelled
- Tuesday95%0.0% cancelled
- Wednesday91%0.0% cancelled
- Thursday89%1.0% cancelled
- Friday86%0.0% cancelled
- Saturday87%1.0% cancelled
- Sunday81%1.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft42%
- Air traffic control & airport congestion30%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather67%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion0%
- Security0%
JAX to IAH: common questions
- How often are JAX to IAH flights on time?
- 88% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Jacksonville to Houston cancelled?
- 0.4% of scheduled flights were cancelled (3 of 693).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 90 min behind schedule on average, and 5.1% of flights were an hour or more late.
- How long is taxi time at JAX?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to JAX — 77% on time
More flights from Jacksonville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: JAX → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.