UA2399 HoustonIAH · 11:55 San DiegoSAN · 13:17
UA2399 by United Airlines flies from Houston (IAH) to San Diego (SAN) for the Thu, Oct 8 departure.
en route from IAH to SAN
board checked 31m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 12:33.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IAH and SAN 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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Houston to San Diego flights today
same route · United AirlinesIf UA2399 is cancelled, these are the other United Airlines nonstop flights from Houston to San Diego 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 UA2399 actually runs
Pro Flight Search has tracked every published board update for UA2399 across the IAH and SAN boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: departed +38 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA2399 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as IAH and SAN published them.
Planning around UA2399? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA2399 Houston to San Diego on-time performance, measured from the IAH and SAN airport boards.
https://proflightsearch.com/flight/UA2399
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