$114 Find Cheap Flights from San Antonio to Houston - Compare and Save

Among airlines operating San Antonio to Houston flights:

• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between San Antonio and Houston. The airlines offering nonstop flights on this route include:

• United Airlines
• Southwest

Flights from San Antonio to Houston usually depart from San Antonio (SAT) and may arrive at several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from San Antonio to Houston:

• Economy Class
• Premium Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $166 round-trip via Denver Intl (DEN), compared to $335 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Connecting flights from San Antonio to Houston most commonly pass through:

• Denver Intl (DEN) - 50% of one-stop connections
• Fort Lauderdale (FLL) - 50% of one-stop connections
Together, these airports account for 100% of one-stop bookings on this route.

Yes. Being flexible with your travel dates can save you up to 35% on the San Antonio to Houston route. Monday is the cheapest departure day at $283 round-trip on average, while Sunday is the most expensive at $433, a difference of $150. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Antonio to Houston route, 18% of flights were delayed in the past 3 months, with delays averaging 1 hour 36 minutes.

Morning is the busiest departure period on San Antonio to Houston flights, with 50% of flights leaving in that window. Afternoon departures account for 30%, evening flights for 20%, and night flights for 0%.

Some of the most popular sights in Houston are Downtown Houston, George R. Brown Convention Center and Galleria Mall. These are among the most viewed places in Houston on KAYAK.

These are the earliest and latest flight times available from San Antonio to Houston:

• Earliest: departs at 5:15 am and lands at 6:21 am
• Latest: departs at 9:00 pm and lands at 10:06 pm.

The flight takes about 1h 06m.

A nonstop flight from San Antonio to Houston takes 1h 06m, covering 187 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $195 to $1,034. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from San Antonio to Houston are currently lower than usual. Average one-way flight prices are about $122, which is 47% below the typical average for this route.

Southwest is the only airline operating San Antonio to Houston flights. 82% of its flights are on time.

Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 17h 19m, compared with 18h 39m via Fort Lauderdale (FLL).

Since Houston is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Houston George Bush Intcntl Airport (IAH) — daily rates from around $3:

• ACO Rent A Car
• Easirent
• America Car Rental
• Hertz
• Thrifty

Near Houston Hobby Airport (HOU) — daily rates from around $20:

• Thrifty
• Dollar
• Alamo
• Hertz
• Budget

Round-trip flights from San Antonio to Houston range from $248 to $476, with an average of $323 over the past 12 months. Anything below $248 counts as a good deal.