UA2491 HoustonIAH · 09:33 San DiegoSAN · 10:55
UA2491 by United Airlines flies from Houston (IAH) to San Diego (SAN) for the Tue, Aug 18 departure.
departs IAH · on schedule
board checked 14m ago · checking again in 45s
⚖ UA2491 typically leaves +15 and lands −18. The air wins minutes back.Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −18 min · 0 cancelled · 12 operations tracked
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 UA2491 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 UA2491 actually runs
Pro Flight Search has tracked every published board update for UA2491 across the IAH and SAN boards: schedule changes, gate pushes and actual clocks. Usually lands ~22 min early. Based on 9 confirmed landings · 7/9 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how UA2491 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N37409, N38403, N31412, N37408.
Board clocks recorded as IAH and SAN published them.
Planning around UA2491? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — UA2491 Houston to San Diego on-time performance, measured from the IAH and SAN airport boards.
https://proflightsearch.com/flight/UA2491
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