Allegiant AirG4
Flights G49200 20:10 We
live
Direct flights from Houston (HOU) to Houston (IAH): 1 nonstop departure observed each week across 1 airline. The nonstop covers 38 km, an estimated 33 minutes in the air. Measured by Pro Flight Search from live flight boards at Houston and Houston. Updated 25 October 2026 at 04:39 UTC.
HOU
Houston
smooth · +7
IAH
Houston
smooth · +0
38 km · ~0h 33m est.
Running clean · 1 airline · 1x weekly · nonstop
94 / 100
route health from live HOU and IAH delay boards
Flight time~0h 33mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Allegiant Air
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 daysAirports right now
live boardsWeather lens
Current conditions put the pressure at HOU: 34% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Houston to Houston route actually runs
Pro Flight Search records official board updates for nonstop HOU to IAH flights through the day: 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.
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 — Houston (HOU) to Houston (IAH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/HOU-IAH
HOU to IAH questions
Is HOU–IAH running on time right now?
Smooth skies ahead. The departure side at HOU is the weaker end, route health score 94/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from HOU to IAH?
Great-circle distance is 38 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 33–33 min gate-to-gate on this route.
How often does HOU–IAH fly?
Allegiant Air runs the route with about 1 flight a week (wed). 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 HOU 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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