Houston to San Antonio (IAH-SAT): nonstop flights and who flies them

United Airlines flies nonstop between Houston (IAH) and San Antonio (SAT), roughly 105 times a week. With United Airlines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. United Airlines fly the route nonstop in 2LNR's schedule data; the timetable and the reverse direction are below.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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105
Nonstop flights a week
191 mi
Nonstop distance
Free
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Houston to San Antonio flight schedule

Scheduled nonstop departures for IAH to SAT, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Houston (IAH) to San Antonio (SAT)
Date Flight Airline Departs IAH Arrives SAT Duration Aircraft
UA 320United Airlines09:3010:361h 6m7M9
UA 1684United Airlines09:3910:451h 6m739
UA 6201United Airlines09:3910:461h 7mE7W
UA 6202United Airlines12:0813:171h 9mE7W
UA 5287United Airlines12:2013:291h 9mE7W
UA 5517United Airlines12:2013:291h 9mE7W
UA 1819United Airlines14:3115:391h 8m320
UA 697United Airlines14:3515:431h 8m320
UA 277United Airlines16:3517:431h 8m738
UA 292United Airlines16:3517:431h 8m738
UA 413United Airlines16:3517:431h 8m73G
UA 5379United Airlines16:3517:441h 9mE7W
UA 1477United Airlines18:5019:581h 8m73G
UA 1542United Airlines20:0521:161h 11m739
UA 2198United Airlines21:4022:441h 4m7M9
UA 6161United Airlines09:3010:371h 7mE7W
UA 6201United Airlines09:3910:461h 7mE7W
UA 1684United Airlines09:5310:591h 6m739
UA 6202United Airlines12:0813:171h 9mE7W
UA 5287United Airlines12:2013:291h 9mE7W
UA 5517United Airlines12:2013:291h 9mE7W
UA 1819United Airlines14:3115:391h 8m320
UA 697United Airlines14:3515:431h 8m320
UA 5379United Airlines16:3517:441h 9mE7W
UA 6157United Airlines16:3517:441h 9mE7W
UA 1477United Airlines18:4519:531h 8m73G
UA 1542United Airlines20:0521:161h 11m739
UA 2198United Airlines21:4022:441h 4m7M9
UA 6161United Airlines09:3010:371h 7mE7W
UA 6201United Airlines09:3910:461h 7mE7W
UA 6202United Airlines12:0813:171h 9mE7W
UA 5287United Airlines12:2013:291h 9mE7W
UA 5517United Airlines12:2013:291h 9mE7W
UA 1819United Airlines14:3115:391h 8m320
UA 697United Airlines14:3515:431h 8m320
UA 5379United Airlines16:3517:441h 9mE7W
UA 6157United Airlines16:3517:441h 9mE7W
UA 1477United Airlines18:4519:531h 8m73G
UA 1542United Airlines20:0521:161h 11m739
UA 2198United Airlines21:4022:441h 4m7M9

Showing the first 40 of 91 scheduled IAH to SAT departures across the next 7 days with service. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every IAH to SAT date on the interactive map

The full IAH to SAT nonstop schedule

United Airlines fly the route nonstop in 2LNR's schedule data. This page carries the full IAH to SAT nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See real availability

Confirmed upgrade and award seats on each IAH to SAT departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See IAH to SAT on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Houston to San Antonio nonstop

Carriers operating IAH to SAT nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See IAH to SAT on the interactive map →

Frequently asked questions about IAH to SAT

How far is San Antonio from Houston?
IAH to SAT covers about 191 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from IAH to SAT?
United Airlines is currently the only airline flying IAH to SAT nonstop. None of them is a carrier 2LNR reads inventory for, so this page carries the IAH to SAT schedule rather than a space claim.
How many flights a week are there from IAH to SAT?
About 105 nonstop flights a week run between Houston and San Antonio in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from IAH to SAT depart?
Scheduled IAH to SAT nonstops in the next 7 days with service leave between 09:30 and 21:40, local time at Houston. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Does 2LNR show upgrade or award space on IAH to SAT?
Not on this route: none of United Airlines is a carrier 2LNR reads inventory for. The page carries the full IAH to SAT nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full IAH to SAT nonstop schedule

Every scheduled departure on this route, with who flies it. On the routes 2LNR does read inventory for, upgrade and award space shows by date, the next 14 days free on every product and the full horizon on Pro.

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