Houston (IAH) to San Antonio (SAT) flights
One airline flies nonstop from Houston (IAH) to San Antonio (SAT): United Airlines. The two airports are 191 miles (307 km) apart. United Airlines is in Star Alliance. There are also 4 ways to fly it with one stop, through Dallas, Monterrey and New Orleans and more.
Airlines flying nonstop from IAH to SAT
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to SAT with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAH to SAT with one stop
4 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Dallas (DFW)American Airlines the whole way
- Via Monterrey (MTY)VivaAerobus the whole way
- Via New Orleans (MSY)United Airlines, then Southwest Airlines
- Via Memphis (MEM)United Airlines, then Breeze Airways
IAH to SAT: common questions
Which airlines fly nonstop from IAH to SAT?
United Airlines (Star Alliance) flies nonstop from Houston (IAH) to San Antonio (SAT).
How far is Houston from San Antonio by plane?
Houston (IAH) and San Antonio (SAT) are 191 miles (307 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAH to SAT award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IAH to SAT cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAH to SAT with taxes and fees.
Where can I connect between Houston and San Antonio?
The most direct connections are through Dallas (DFW), Monterrey (MTY), New Orleans (MSY) and Memphis (MEM). On 2 of them the same airline flies both flights, for example American Airlines through Dallas.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.