IAH to JAX flight delays
Houston, TX (IAH) Jacksonville, FL (JAX) · 816 miles
717 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
76.05%
Arrived on time
Within 15 minutes of schedule
0.42%
Cancelled
Share of scheduled flights
65 min
When late, late by
Average across delayed arrivals
17 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 42.4 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. JAX to IAH arrives on time 11.5 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Only United Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
The Houston to Jacksonville route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, United Airlines arrived on time most often on IAH to JAX. Flights ran closest to schedule in January and worst in July.
Every airline on IAH to JAX
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 692 | 76.63% | 0.43% | 64 min | C |
| SkyWest Airlines | 25 | 60% | 0% | 73 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
JAX to IAH Jacksonville back to Houston 87.54% on time AOther routes from Houston
Common questions
Are flights from Houston to Jacksonville usually delayed?
76.05% of flights on the IAH to JAX route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Houston to Jacksonville?
Only United Airlines appears in the published record on this route, with 692 flights and 76.63% arriving on time.
How often are IAH to JAX flights cancelled?
0.42% of scheduled flights did not operate — about 4 in every thousand. That is in the normal range.
What is the best month to fly Houston to Jacksonville?
January, when 93.3% of flights arrived on time. The worst was July at 50.9%.
When IAH to JAX flights are late, how late are they?
About 65 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAH to JAX during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →