United AirlinesUA
Flights UA4558 08:21 Mo Tu Fr Sa Su · UA4248 11:11 daily · UA4909 varies daily · UA4553 16:53 Mo Tu We Th Fr Su
live
Direct flights from Huntsville (HSV) to Houston (IAH): 7 nonstop departures observed each week across 1 airline. The median arrival is 29 minutes early. No cancellations were recorded across the 3 tracked flights. The nonstop covers 956 km, an estimated 1 hour 44 minutes in the air. Measured by Pro Flight Search from live flight boards at Huntsville and Houston. Updated 18 August 2026 at 20:53 UTC.
HSV
Huntsville
tracking
IAH
Houston
smooth · +0
956 km · ~1h 44m est.
Running clean · 1 airline · 7x weekly · nonstop
100 / 100
route health from live HSV and IAH delay boards
Median arrival delay is −29 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−29 minacross the last 3 operated legs
Flight time~1h 44mestimated from route distance
Weekly departures7x1 direct airline on the leg
Current nonstop fares
HSV → IAH · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Huntsville to Houston route actually runs
Pro Flight Search tracks every published board update for nonstop HSV to IAH flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Huntsville (HSV) to Houston (IAH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/HSV-IAH
HSV to IAH questions
Is HSV–IAH running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from HSV to IAH?
Great-circle distance is 956 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 97–112 min gate-to-gate on this route.
How often does HSV–IAH fly?
United Airlines runs the route with about 32 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at HSV and arrival-side delay at IAH, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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