LGA (New York) to IAH (Houston) flights arrive on time 79% of the time. The most reliable airline on this route is United Airlines at 82%. The average delay is 89 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.LGA → IAH
LGA (New York) to IAH (Houston)
LGA → IAH on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 79% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
United Airlines edges out SkyWest Airlines on this route — 82% vs 74% on time.
Airline Comparison
United Airlines leads at 82% on time; SkyWest Airlines trails at 74%.
Accurate?
Good to know
Departing from LGA
80% on timeExpect ~21 min sitting on the taxiway after your gate pushes back. LGA has long runway queues.
TSA is currently ~9 min. Best time: 4 AM (about 5 min).
LGA cancels 3.1% of flights — higher than average. Have a backup plan.
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 ~11 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what United Airlines owes you — refund rights, action plan, complaint email. Free.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.