UA3985United Airlines · IAH → SDF
live · 53m ago
Route confirmed United Airlines

UA3985 HoustonIAH · 16:32 LouisvilleSDF · 19:25

UA3985 by United Airlines flies from Houston (IAH) to Louisville (SDF) for the Fri, Oct 16 departure.

Right nowScheduled · gate B42 · as of 00:22
16:32

departs IAH · on schedule

Typical gate push+260 minmedian posted departure
Typical arrival+290 minmedian over 1 operations

The route today

live boards
IAHHoustonOn-time likelyIAH delay board →
SDFLouisvilleOn-time likelySDF delay board →
IAH→SDFevery 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
2.6%Chance of cancellation
+7 minAvg hub delay right now

Conditions at IAH and SDF 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 Houston to Louisville flights today

same route · United Airlines
UA3990departs 09:47
UA4052departs 18:45
UA3234departs 21:00

If UA3985 is cancelled, these are the other United Airlines nonstop flights from Houston to Louisville on the same day, with scheduled departure times in IAH local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA3985 actually runs

Pro Flight Search has tracked every published board update for UA3985 across the IAH and SDF boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +260 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA3985 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-15IAH 16:32 16:30 (−2)SDF 19:25 00:15 (+290)
10-14IAH 16:32 20:52 (+260)SDF

Aircraft

Recent tails: N86334.

Board clocks recorded as IAH and SDF published them.

Planning around UA3985? 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 — UA3985 Houston to Louisville on-time performance, measured from the IAH and SDF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3985
How we measure this →