Houston to San Antonio Flight Time & Schedules

How Long Does It Normally Take to Fly from Houston to San Antonio?

A nonstop flight from Houston to San Antonio generally takes about 1 hour to 1 hour 11 minutes, depending on which Houston airport you use and the individual departure. Nonstop service to San Antonio International Airport (SAT) is available from both George Bush Intercontinental Airport (IAH) and William P. Hobby Airport (HOU).

The route is particularly short. IAH and San Antonio are approximately 191 miles apart, while the distance from Hobby Airport to SAT is about 192 miles.

United Airlines operates nonstop service from IAH to San Antonio, while Southwest Airlines provides direct flights from Hobby Airport. This gives travelers nonstop choices from both of Houston's main commercial airports.

Connecting flights are available as well, but they normally make little sense for such a short route unless the fare or schedule is particularly convenient. Some one-stop journeys through Dallas take around three to four hours or more, compared with approximately one hour nonstop.

When choosing a flight, compare the Houston departure airport, scheduled travel time and departure hour. The difference in flying time between IAH and Hobby is small, so airport location and airline preference may be more important.

Average Nonstop Journey Time from Houston to San Antonio

Most direct Houston-to-San Antonio flights require around one hour.Flights from IAH are listed at approximately 1 hour 8 minutes to 1 hour 11 minutes, while Southwest gives an average HOU–SAT flying time of 1 hour. Other published HOU schedules range up to around 1 hour 10 minutes.

A direct journey from George Bush Intercontinental Airport (IAH) to San Antonio International Airport (SAT) generally takes approximately 1 hour 8 minutes to 1 hour 11 minutes.

The airport-to-airport distance is approximately 191 miles (307 km).

United Airlines operates the nonstop IAH–SAT route and offers multiple direct departures throughout the day.

For passengers based in northern Houston or those already connecting through IAH, this route provides a straightforward way to reach San Antonio without another transfer.

Travelers can also fly directly from William P. Hobby Airport (HOU) to San Antonio International Airport.
Southwest Airlines lists the average flight time at approximately 1 hour, while published schedules can range from around 1 hour to 1 hour 10 minutes.

The HOU–SAT route covers approximately 192 miles (309 km).

Southwest Airlines operates nonstop flights between Hobby and San Antonio. Travelers who live closer to central or southern Houston may find Hobby more convenient than making the longer ground journey to IAH.

Although a connection is unnecessary for most travelers, some itineraries route through the Dallas area.

Certain HOU–DFW–SAT schedules take approximately 3 hours 6 minutes to 3 hours 26 minutes, depending on the connection.

From IAH, one-stop journeys through Dallas/Fort Worth International Airport (DFW) have been listed at approximately 3 hours 19 minutes to 4 hours 15 minutes overall.

These options are considerably slower than the nonstop flight, so they are generally worth considering only when they offer a more suitable fare or departure schedule.

Both IAH and Hobby have direct flights to San Antonio, so most passengers will not need a connection.
When one-stop itineraries are offered, Dallas/Fort Worth is one possible transfer point.

Some connecting schedules can take three to four hours, while longer waits may extend the trip further.
For comparison, Expedia notes that connecting HOU–SAT journeys can add several hours compared with the roughly one-hour nonstop flight.

When reviewing these options, check the complete elapsed journey time rather than looking only at the duration of each flight segment.

Houston to San Antonio Journey Time by Route

Departure Airport	Arrival Airport	Route Code	Approximate Journey Time
George Bush Intercontinental Airport (IAH)	San Antonio International Airport (SAT)	IAH–SAT	Around 1 hr 8 mins–1 hr 11 mins nonstop
William P. Hobby Airport (HOU)	San Antonio International Airport (SAT)	HOU–SAT	Around 1 hr–1 hr 10 mins nonstop
George Bush Intercontinental Airport (IAH)	San Antonio International Airport (SAT)	IAH–DFW–SAT	Around 3 hrs 19 mins–4 hrs 15 mins with one stop
William P. Hobby Airport (HOU)	San Antonio International Airport (SAT)	HOU–DFW–SAT	Around 3 hrs 6 mins–3 hrs 26 mins with one stop

The quickest option is normally a direct flight from either Houston airport. IAH–SAT covers approximately 191 miles, while HOU–SAT is around 192 miles.
These timings should be treated as estimates. Weather conditions, ground delays, air-traffic instructions and connection times can all affect the final journey.

Which Airlines Fly Directly from Houston to San Antonio?

United Airlines

Southwest Airlines

Do Houston and San Antonio Have the Same Local Time

No. Houston and San Antonio are in the same time zone, so there is no clock difference between the two cities.

Both cities follow Central Time. They observe Central Daylight Time during the daylight-saving period and Central Standard Time during the remainder of the year.

For example, if it is 3:00 PM in Houston, it is also 3:00 PM in San Antonio.

Because there is no time-zone adjustment, comparing the departure and arrival times on a flight itinerary is straightforward.

Explore More Flight Times & Routes

Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below.

Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Houston Flight Times.