How often are EWR to IAH flights on time?

Flights from Newark (EWR) to Houston (IAH) arrive on time 86% of the time across 21,718 flights of official data.

Which airline is most reliable on the EWR to IAH route?

Spirit Airlines has the best on-time record on this route at 86% across 2,443 flights.

Route reliability

Flights from Newark to Houston arrive on time 86% of the time across 21,718 flights. Here’s how each airline really performs.

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On-time rate

21,718 flights

Airline	On-time	Flights
Spirit Airlines	86%	2,443
United Airlines	86%	19,275

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg IAH → EWR.

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Score real EWR–IAH flights on reliability, weather, and connection safety — not just price.

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