Cheap flights from Houston to San Antonio

William P. Hobby
HOU
San Antonio
SAT

Flight deals from Houston to San Antonio

Below you can see the best deals on flights Houston — San Antonio for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 22 September, from $128.

Top 10 cheap flights from Houston to San Antonio

F9
F9
$ 112

Houston — San Antonio

22:38—19:25
10 Sep 2026
20 h 47 m
1 stop
F9
F9
$ 128

Houston — San Antonio

06:30—19:25
8 Sep 2026
36 h 55 m
1 stop
F9
F9
$ 128

Houston — San Antonio

10:30—19:25
9 Sep 2026
8 h 55 m
1 stop
F9
F9
$ 128

Houston — San Antonio

10:30—19:25
12 Sep 2026
8 h 55 m
1 stop
F9
F9
$ 129

Houston — San Antonio

11:35—19:31
2 Sep 2026
7 h 56 m
1 stop
F9
F9
$ 129

Houston — San Antonio

11:35—19:31
1 Sep 2026
31 h 56 m
1 stop
F9
F9
$ 129

Houston — San Antonio

06:30—19:31
1 Sep 2026
37 h 1 m
1 stop
F9
F9
$ 130

Houston — San Antonio

11:35—19:31
31 Aug 2026
7 h 56 m
1 stop
F9
F9
$ 130

Houston — San Antonio

06:30—19:31
31 Aug 2026
13 h 1 m
1 stop
F9
F9
$ 130

Houston — San Antonio

22:04—19:31
31 Aug 2026
21 h 27 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Houston — San Antonio flight

Looking for cheap flights from Houston to San Antonio? Compare fares from different airlines, check the flight schedule and travel time — and book your Houston — San Antonio ticket online at the best price.

The route has direct flights — around 103 flights per week, flights are operated by United Airlines, a nonstop flight takes about 1 h 2 min, the distance between the cities is around 305 km.

Planning your trip? You may find our San Antonio travel guide, how to get from the airport into town and San Antonio weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $128Min. price
SeptemberCheapest
AugustPeak season
YesDirect flights
305 kmDistance
1 h 2 minTravel time
1Airlines
103 / wkFlights

Flight schedule from Houston to San Antonio

The table shows direct flights from Houston to San Antonio on the selected date. The flight takes approximately 1 h 2 min. Regular flights are operated by United Airlines. Departures from George Bush Intercontinental Airport and William P. Hobby Airport airports, arrivals at San Antonio International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 15 Aug 2026

Flight ticket prices by day: Houston — San Antonio

Below is a calendar of the lowest flight ticket prices for Houston — San Antonio by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $128 in September, and the most expensive are around $189 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Houston to San Antonio by month. Tickets are usually cheapest in May (around $96) and priciest in July (about $144) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$102lowMay$96lowSep$96low
Feb$102lowJun$132highOct$102low
Mar$114mediumJul$144highNov$138high
Apr$108mediumAug$114mediumDec$138high

Some values are estimated based on seasonality.

When to fly

Weather in San Antonio: it is warmest in August (up to 36 °C on average) and coolest in January (around 18 °C). The driest month is July.

Tickets are usually cheapest in September and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Antonio

Dry and wet days · San Antonio

Wind speed and direction · San Antonio

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How to get the best deal on a Houston — San Antonio ticket

  • Book ahead: fares for Houston — San Antonio are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Houston is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San Antonio is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Houston — San Antonio route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    34x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight IAH → SAT34x/week
      Duration
      1h 9m
      Days
      MTWTFSS
    100.0%Open →

Cities and airports on the Houston — San Antonio route

Flights Houston — San Antonio depart from George Bush Intercontinental Airport and William P. Hobby Airport and arrive at San Antonio International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Houston

HOU
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

San Antonio

SAT
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Houston — San Antonio flight

How long is the flight from Houston to San Antonio?

A nonstop Houston — San Antonio flight takes about 1 h 2 min — the distance between the cities is around 305 km.

How far is it from Houston to San Antonio?

The distance from Houston to San Antonio is about 305 km, which a nonstop flight covers in around 1 h 2 min.

Are there direct flights from Houston to San Antonio?

Yes, there are nonstop flights Houston — San Antonio — around 103 flights per week.

Which airlines fly from Houston to San Antonio?

Airlines operating Houston — San Antonio include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Houston — San Antonio flights use?

Flights from Houston depart from George Bush Intercontinental Airport, William P. Hobby Airport, and arrive at San Antonio International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Houston to San Antonio?

The price of a Houston — San Antonio ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in August. Tickets typically cost between $128 and $189. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Houston — San Antonio?

Flights Houston — San Antonio are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Houston to San Antonio?

To catch a low fare Houston — San Antonio, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Houston

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Where else you can fly from San Antonio

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DallasLos AngelesChicagoAtlantaLas VegasDenverPhoenixMinneapolisMexico CitySalt Lake CityDetroitCharlotteSeattleMonterreyOrlandoNew York CityPhiladelphiaGuadalajaraMiamiWashington, D.C.Fort LauderdaleSan JuanCancunBostonTorontoQuerétaroSan FranciscoLeonTampaSan Luis PotosíBrownsvilleManhattanLafayette

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