IAH → SATHouston to San Antonio

live

Direct flights from Houston (IAH) to San Antonio (SAT): 7 nonstop departures observed each week across 1 airline. The median arrival is 5 minutes early. No cancellations were recorded across the 1 tracked flight. The nonstop covers 306 km, an estimated 54 minutes in the air. Measured by Pro Flight Search from live flight boards at Houston and San Antonio. Updated 9 September 2026 at 21:53 UTC.

IAH Houston smooth · +4
SAT San Antonio smooth · +0
306 km · ~0h 54m est.
dep bank 09:30–21:357x weekly
Running clean · 1 airline · 7x weekly · nonstop
96 / 100

route health from live IAH and SAT delay boards

Median arrival delay is −5 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−5 minacross the last 1 operated legs
Flight time~0h 54mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
United AirlinesUA

Flights UA6161 09:30 Mo We Th Fr Sa Su · UA1684 varies Mo Tu We Th · UA5287 12:20 Tu We · UA5517 12:20 Mo We Th Fr Sa Su

History

operated legs · board outcomes
09-09UA1684departed−5

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
IAHHouston +4 min smooth 🌤 mostly cloudy · NNE 4 kt Full IAH delay board →
SATSan Antonio +0 min smooth 🌤 scattered clouds · S 7 kt Full SAT delay board →

Weather lens

Current conditions put the pressure at SAT: 36% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Houston to San Antonio route actually runs

Pro Flight Search records official board updates for nonstop IAH to SAT 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 (IAH) to San Antonio (SAT) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/IAH-SAT
How we measure this →

IAH to SAT questions

Is IAH–SAT running on time right now?

Smooth skies ahead. The departure side at IAH is the weaker end, route health score 96/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on IAH–SAT?

Operators schedule morning departures around 09:30 and evening departures around 18:50 from IAH. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SAT delay card to confirm conditions when you'd arrive.

How long is the flight from IAH to SAT?

Great-circle distance is 306 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 52–56 min gate-to-gate on this route.

How often does IAH–SAT fly?

United Airlines runs the route with about 53 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.