UA4003United Airlines · MEM → IAH
live · 46m ago
Route confirmed United Airlines

UA4003 MemphisMEM · 09:00 HoustonIAH · 10:57

UA4003 by United Airlines flies from Memphis (MEM) to Houston (IAH) for the Wed, Aug 19 departure.

Right nowDeparts today · today · as of 06:50
09:00

departs MEM · on schedule

Typical arrival−24 minmedian over 2 operations

The route today

live boards
MEMMemphisOn-time likelyMEM delay board →
IAHHoustonOn-time likelyIAH delay board →
MEM→IAHevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
1.9%Chance of cancellation
+16 minAvg hub delay right now

Conditions at MEM and IAH are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 Memphis to Houston flights today

same route · United Airlines
UA2639departs 06:45
UA6207departs 06:45
UA537departs 07:00
UA255departs 09:00
UA5285departs 11:44
UA5525departs 11:46

If UA4003 is cancelled, these are the other United Airlines nonstop flights from Memphis to Houston on the same day, with scheduled departure times in MEM local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA4003 actually runs

Pro Flight Search has tracked every published board update for UA4003 across the MEM and IAH boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed -24 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA4003 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
08-18MEM 09:00IAH 10:57 10:33 (−24)
08-17MEM IAH 10:57 10:25 (−32)

Board clocks recorded as MEM and IAH published them.

Planning around UA4003? 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 — UA4003 Memphis to Houston on-time performance, measured from the MEM and IAH airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4003
How we measure this →