Cheap flights from Houston to San Antonio
190 mi · 45m average nonstop
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Quick answer: Houston to San Antonio at a glance
Cheap flights from Houston (IAH) to San Antonio (SAT) cover 190 miles (305 km) in about 45m nonstop, with 1 airline flying direct — a short-haul domestic route. Search Kayak for today's cheapest live fare. Route difficulty 1/10.
Summary computed from real OpenFlights coordinates — not an estimate. Prices update live on Kayak.
Flying from Houston to San Antonio covers 190 miles (306 km) in approximately 0 hour 45 minutes. 1 airline offers direct flights on this short-haul domestic route. This is a short-haul domestic route typically served by direct flights.
Nonstop distance 190 miles. Direct carriers include UA.
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Airlines on this route
1 airlines fly Houston → San Antonio. All are direct routes.
| Airline | Route type |
|---|---|
| UA | Direct |
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Houston to San Antonio — quick answers
How far is Houston from San Antonio by plane?
The nonstop flight distance from Houston (IAH) to San Antonio (SAT) is 190 miles (305 km), calculated as a great-circle line from published OpenFlights airport coordinates. Actual flown distance is slightly longer due to airways and winds.
How long is the flight from Houston to San Antonio?
The average nonstop flight time from IAH to SAT is 45 minutes. Gate-to-gate time is usually 20–35 minutes longer; connecting itineraries add 1–4 hours depending on the layover.
Which airlines fly from Houston to San Antonio?
1 airlines serve this route nonstop: UA. Schedules and amenities differ by carrier — compare live frequencies and fare classes on Kayak before you book.