LAX (Los Angeles) to IAH (Houston) flights arrive on time 86% of the time. The most reliable airline on this route is United Airlines at 88%. The average delay is 68 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated April 2026.LAX → IAH
LAX (Los Angeles) to IAH (Houston)
LAX → IAH on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is usually on time. About 86% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines is significantly more reliable on this route at 88% on time vs Frontier Airlines at 57%.
Airline Comparison
United Airlines leads at 88% on time; Frontier Airlines trails at 57%.
Accurate?
Good to know
Departing from LAX
82% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. LAX has long runway queues.
TSA is currently ~18 min. Best time: 4 AM (about 5 min).
Arriving at IAH
80% on timeWhen flights into IAH are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at IAH: TSA is ~9 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated April 2026. Source: Bureau of Transportation Statistics.