HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$49+ Cheap flights from Galveston, TX to San Antonio (SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAT
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Galveston to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Galveston to San Antonio

Keep the following information in mind while searching for Galveston to San Antonio flight deals. Data was last updated August 1, 2025.

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

January

Cheapest in

August

Average price

$160
From Galveston to San Antonio
Search Deals
One-way flight from Galveston to San Antonio
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Galveston to San Antonio

Cheapest flights from Galveston to San Antonio
Explore the most affordable flight options available from Galveston to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2011:30 amHOU - SAT
Nonstop1h 00mSouthwest
Sat 8/236:15 pmSAT - HOU
Nonstop1h 00mSouthwest
Deal found 7/30$97
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amHOU - SAT
1 stop5h 54mAmerican Airlines
Sat 9/2012:44 pmSAT - HOU
1 stop3h 11mAmerican Airlines
Deal found 7/30$289

Cheapflights Fare Finder

 
Customize your flight search to find flights from Galveston to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Galveston to San Antonio that are best for you.

Fly from

Galveston

Fly to

San Antonio

Route

Depart

Return

Price

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Wed 8/20

11:30 am-12:30 pm

Nonstop1h 00m

San Antonio

Sat 8/23

6:15 pm-7:15 pm

Nonstop1h 00m

$97

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sat 9/13

6:44 pm-10:13 pm

1 stop3h 29m

San Antonio

Sat 9/20

12:44 pm-3:55 pm

1 stop3h 11m

$289

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sat 8/30

3:10 pm-4:10 pm

Nonstop1h 00m

$49

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sun 9/14

6:22 pm-10:44 pm

1 stop4h 22m

$144

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Fri 9/26

6:37 pm-1:55 pm

1 stop19h 18m

$172

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Thu 11/13

8:47 am-10:27 pm

3 stops13h 40m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Galveston to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Galveston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Galveston to San Antonio

What is the cheapest month to book a flight from Galveston to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Galveston to San Antonio (average of $295). Flying from Galveston to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from G4L to SAT?

Find hourly flight availability from Galveston to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

When flying from Galveston to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Galveston to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Galveston to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Galveston to San Antonio flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated August 1, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from Galveston to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Galveston to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Galveston?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Galveston. On average, San Antonio has 1 inbound flight from Galveston per day from 2 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • What are the cheapest airlines to fly from Galveston to San Antonio one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $49. Users have also found prices from $97 and $172 on American Airlines and Delta, respectively.

  • What are the cheapest flights from Galveston to San Antonio?

    On average you can expect to pay $293 for a flight from Galveston to San Antonio. The cheapest flight overall is $97 while the most popular route, (Houston Hobby - San Antonio) is currently priced at $97.

  • Can I find deals for flights from Galveston to San Antonio that include hotel bookings?

    Yes. In addition to deals on Galveston to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Galveston to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Galveston to San Antonio.

  • Can I find deals for business class flights from Galveston to San Antonio?

    Yes. Cheapflights offers flight deals from Galveston to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Galveston to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Galveston to San Antonio (average of $295). Flying from Galveston to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Galveston to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Hobby flights
Dallas/Fort Worth to George Bush Intcntl flights
George Bush Intcntl to Dallas/Fort Worth flights
Hobby to Dallas/Fort Worth flights
Dallas/Fort Worth to Brownsville flights
Dallas/Fort Worth to El Paso flights
El Paso to Dallas/Fort Worth flights
Harlingen to Dallas/Fort Worth flights
Corpus Christi to Dallas/Fort Worth flights
Love Field to Hobby flights
San Antonio to Dallas/Fort Worth flights
Dallas/Fort Worth to Austin flights
Hobby to Love Field flights
Dallas/Fort Worth to San Antonio flights
Midland to Hobby flights
Harlingen to Love Field flights
Love Field to El Paso flights
El Paso to Hobby flights
George Bush Intcntl to El Paso flights
Hobby to El Paso flights
Lubbock to Hobby flights
Dallas/Fort Worth to Lubbock flights
Austin to Dallas/Fort Worth flights
San Antonio to Love Field flights
McAllen to Dallas/Fort Worth flights
Hobby to Lubbock flights
El Paso to George Bush Intcntl flights
Dallas/Fort Worth to Corpus Christi flights
Hobby to Midland flights
Hobby to McAllen flights
San Antonio to Hobby flights
Love Field to Austin flights
El Paso to Love Field flights
Amarillo to Dallas/Fort Worth flights
Hobby to San Antonio flights
Midland to George Bush Intcntl flights
El Paso to San Antonio flights
San Antonio to George Bush Intcntl flights
George Bush Intcntl to McAllen flights
Austin to El Paso flights
Dallas/Fort Worth to McAllen flights
George Bush Intcntl to San Antonio flights
Dallas/Fort Worth to Midland flights
George Bush Intcntl to Lubbock flights
McAllen to Austin flights
Brownsville to Dallas/Fort Worth flights
Love Field to San Antonio flights
George Bush Intcntl to Midland flights
Hobby to Amarillo flights
Lubbock to George Bush Intcntl flights

Top 2 airlines flying from Galveston to San Antonio

Discover the top 2 airlines that operate flights from Galveston to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$97Average$310FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$132Average$305FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.