Houston (IAH) to Austin (AUS) flights
One airline flies nonstop from Houston (IAH) to Austin (AUS): United Airlines. The two airports are 140 miles (225 km) apart. United Airlines is in Star Alliance. There are also 13 ways to fly it with one stop, through Dallas, Harlingen and McAllen and more.
Airlines flying nonstop from IAH to AUS
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to AUS 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 AUS with one stop
13 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Dallas (DFW)American Airlines the whole way
- Via Harlingen (HRL)United Airlines, then Southwest Airlines
- Via McAllen (MFE)United Airlines, then Delta Air Lines
- Via Baton Rouge (BTR)United Airlines the whole way
- Via Midland (MAF)United Airlines, then Southwest Airlines
- Via New Orleans (MSY)United Airlines, then Southwest Airlines and Delta Air Lines
- Via Monterrey (MTY)VivaAerobus the whole way
- Via Oklahoma City (OKC)United Airlines, then Southwest Airlines
- Via Lubbock (LBB)United Airlines, then Southwest Airlines
- Via Tulsa (TUL)United Airlines, then Southwest Airlines
- Via Bentonville (XNA)United Airlines, then American Airlines
- Via Amarillo (AMA)United Airlines, then Southwest Airlines
- Via Memphis (MEM)United Airlines, then American Airlines, Delta Air Lines and 1 more
IAH to AUS: common questions
Which airlines fly nonstop from IAH to AUS?
United Airlines (Star Alliance) flies nonstop from Houston (IAH) to Austin (AUS).
How far is Houston from Austin by plane?
Houston (IAH) and Austin (AUS) are 140 miles (225 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 AUS 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 AUS 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 AUS with taxes and fees.
Where can I connect between Houston and Austin?
The most direct connections are through Dallas (DFW), Harlingen (HRL), McAllen (MFE), Baton Rouge (BTR) and Midland (MAF). On 3 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.