Which airline is most reliable for DTW (Detroit) to IAH (Houston)?

The most reliable airline on the DTW to IAH route is United Airlines, with an on-time arrival rate of 85%.

How often are flights delayed from DTW to IAH?

About 21% of flights from DTW to IAH experience delays. 79% arrive on time.

What's the average delay on DTW to IAH flights?

When flights from DTW to IAH are delayed, the average delay is approximately 67 minutes.

Is a short connection safe after a DTW to IAH flight?

With 79% of DTW to IAH flights arriving on time and an average delay of 67 minutes when late, a connection under 60 minutes at IAH is risky. We recommend at least 75-90 minutes for domestic connections after this route.

DTW → IAH

DTW (Detroit) to IAH (Houston)

DTW (Detroit) to IAH (Houston) flights arrive on time 79% of the time. The most reliable airline on this route is United Airlines at 85%. The average delay is 67 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

DTW → IAH on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

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 is significantly more reliable on this route at 85% on time vs Frontier Airlines at 64%.

Airline Comparison

United Airlines leads at 85% on time; Frontier Airlines trails at 64%.

Accurate?

Good to know

Departing from DTW

80% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. DTW has long runway queues.

TSA is currently ~5 min. Best time: 4 AM (about 5 min).

More about DTW →

Arriving at IAH

79% on time

When flights into IAH are late, the average delay is 77 minutes. Build buffer if you have ground plans.

If connecting at IAH: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.

More about IAH →Connection times at IAH →

Flight cancelled or delayed?

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Flying out of DTW? We'll brief you.

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DTW Airport IAH Airport

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Data last updated August 2026. Source: Bureau of Transportation Statistics.