JFK (New York) to IAH (Houston) flights arrive on time 77% of the time. The most reliable airline on this route is Delta Air Lines at 87%. The average delay is 61 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated March 2026.JFK → IAH
JFK (New York) to IAH (Houston)
JFK → IAH on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines edges out JetBlue Airways on this route — 87% vs 74% on time.
Airline Comparison
Delta Air Lines leads at 87% on time; JetBlue Airways trails at 74%.
Accurate?
Good to know
Departing from JFK
78% on timeExpect ~22 min sitting on the taxiway after your gate pushes back. JFK has long runway queues.
TSA is currently ~12 min. Best time: 4 AM (about 5 min).
JFK cancels 2.3% 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 Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.