UA4051United Airlines · IAH → JAX
live · just now
Route confirmed United Airlines

UA4051 HoustonIAH · 14:35 JacksonvilleJAX · 17:51

UA4051 by United Airlines flies from Houston (IAH) to Jacksonville (JAX).

Right nowNext departure tomorrow Operates daily
14:35

scheduled from IAH

Typical gate push−2 minmedian posted departure

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
10-29
−2 gate
10-23
−5 gate
10-22
−2 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
IAHHoustonOn-time likelyIAH delay board →
JAXJacksonvilleOn-time likelyJAX delay board →
IAH→JAXevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
2.0%Chance of cancellation
+9 minTypical airport delay in this weather

Conditions at IAH and JAX are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

Houston to Jacksonville with United Airlines · Fri 30 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.3%1.1× usual
Chance a departure leaves 60+ min late
4.6%1.2× usual

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Houston to Jacksonville flights today

same route · United Airlines
UA6131departs 07:35
UA6194departs 07:35
UA2144departs 12:00
UA6143departs 12:20
UA4015departs 14:50
UA2293departs 20:00

If UA4051 is cancelled, these are the other United Airlines nonstop flights from Houston to Jacksonville on the same day, with scheduled departure times in IAH local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA4051 actually runs

Pro Flight Search has tracked every published board update for UA4051 across the IAH and JAX boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: departed -2 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA4051 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-29IAH 14:35 14:33 (−2)JAX
10-23IAH 14:35 14:30 (−5)JAX 17:51
10-22IAH 14:35 14:33 (−2)JAX

Board clocks recorded as IAH and JAX published them.

Planning around UA4051? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA4051 Houston to Jacksonville on-time performance, measured from the IAH and JAX airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4051
How we measure this →