Direct (nonstop) flights from Houston to San Antonio
1 airline flys nonstop from William P. Hobby Airport (HOU) to San Antonio International (SAT). It's 192 miles (309 km), about 1h in the air. Operated by Southwest Airlines.
Southwest Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Houston to San Antonio with one stop · direct emits 36 kg CO₂ per passenger
Looking for the return flight?
SAT → HOU: Flights from San Antonio to HoustonOther direct flights from Houston
Direct flights from San Antonio (SAT)
Frequently Asked Questions
How long is the direct flight from Houston to San Antonio?
A nonstop flight from Houston (HOU) to San Antonio (SAT) takes approximately 1 hours. The distance is 192 miles (309 km).
Which airlines fly nonstop from Houston to San Antonio?
Just Southwest Airlines.
Is there a nonstop flight from Houston to San Antonio?
Yes. 1 airline: Southwest Airlines.
How far is Houston from San Antonio?
The flight distance from Houston to San Antonio is 192 miles (309 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Houston to San Antonio?
At 1h, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Houston to San Antonio?
Roughly 36 kg CO2 per passenger one-way. That's about the same as driving 180 km.
Is the return flight from San Antonio to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to San Antonio?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at William P. Hobby Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.