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$116+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAT
Jan 18 — Jan 251
Sun 1/18
Sun 1/25
1 adult, Economy
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Cheap 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 December 19, 2025.

This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/2410:13 amHOU - SAT
1 stop7h 58mAmerican Airlines
Thu 12/258:21 amSAT - HOU
1 stop7h 26mAmerican Airlines
Deal found 12/16$395
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/3112:09 pmHOU - SAT
1 stop7h 01mAmerican Airlines
Tue 1/67:00 pmSAT - HOU
1 stop3h 46mAmerican Airlines
Deal found 12/17$402
This Southwest deal was found by Cheapflights users on 12/18. 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.
Tue 12/308:30 pmHOU - SAT
Nonstop1h 00mSouthwest
Wed 12/316:20 amSAT - HOU
Nonstop1h 00mSouthwest
Deal found 12/18$456
This Southwest deal was found by Cheapflights users on 12/16. 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 12/2411:05 amHOU - SAT
Nonstop1h 05mSouthwest
Thu 12/256:20 amSAT - HOU
Nonstop1h 00mSouthwest
Deal found 12/16$493
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/2510:13 amHOU - SAT
1 stop7h 44mAmerican Airlines
Sun 12/285:00 amSAT - HOU
1 stop3h 32mAmerican Airlines
Deal found 12/17$499
This Southwest deal was found by Cheapflights users on 12/18. 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.
Tue 12/238:30 pmHOU - SAT
Nonstop1h 00mSouthwest
Tue 12/306:40 pmSAT - HOU
Nonstop1h 00mSouthwest
Deal found 12/18$574
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Mon 12/229:05 amHOU - SAT
1 stop5h 05mAmerican Airlines
Sat 12/275:00 amSAT - HOU
1 stop3h 32mAmerican Airlines
Deal found 12/18$594

Find 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 December 19, 2025.

Round-trip from

$231
(Southwest)

One-way from

$116
(Southwest)

Popular in

January

Cheapest in

August

Average price

$402
From Galveston to San Antonio
Search Deals
One-way flight from Galveston to San Antonio
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 19, 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 1/14

4:40 pm-5:40 pm

Nonstop1h 00m

San Antonio

Wed 1/21

12:25 pm-7:35 pm

2 stops7h 10m

$246

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Tue 1/20

4:40 pm-5:40 pm

Nonstop1h 00m

San Antonio

Fri 1/23

4:40 pm-5:45 pm

Nonstop1h 05m

$260

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sun 1/25

7:50 am-8:50 am

Nonstop1h 00m

San Antonio

Wed 1/28

4:40 pm-5:45 pm

Nonstop1h 05m

$260

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Mon 1/12

11:05 am-12:10 pm

Nonstop1h 05m

San Antonio

Tue 1/13

1:45 pm-2:45 pm

Nonstop1h 00m

$261

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sat 1/10

2:30 pm-3:30 pm

Nonstop1h 00m

San Antonio

Mon 1/12

1:45 pm-2:45 pm

Nonstop1h 00m

$281

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sat 1/17

11:25 am-12:30 pm

Nonstop1h 05m

San Antonio

Sat 1/24

6:35 am-7:35 am

Nonstop1h 00m

$281

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Sun 1/11

2:15 pm-3:15 pm

Nonstop1h 00m

San Antonio

Tue 1/13

4:40 pm-5:45 pm

Nonstop1h 05m

$281

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Mon 1/12

5:30 pm-9:05 pm

1 stop3h 35m

San Antonio

Wed 1/14

8:20 am-2:50 pm

2 stops6h 30m

$286

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Tue 2/10

4:40 pm-5:40 pm

Nonstop1h 00m

$116

HoustonSan Antonio

HOU - SAT

HOUSAT

Houston Hobby

Tue 1/13

11:05 am-12:10 pm

Nonstop1h 05m

$116

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 16 results
1
2

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, June is the cheapest month in which you can book a flight from Galveston to San Antonio (average of $77). Flying from Galveston to San Antonio in December is currently the most expensive (average of $222). 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 December 19, 2025.

When flying from Galveston to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 30% versus a flight at noon.

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 at noon 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 December 19, 2025.
See what other customers who have flown with Southwest and United 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
7.9
Good
4,252 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
7.9
Good
4,252 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,094 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 0 inbound flights from Galveston per day from 2 airlines. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from Galveston to San Antonio?

    Airlines like Southwest fly from Galveston to San Antonio in about 1h. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 192 mi. Most flights are nonstop.

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

    On average you can expect to pay $327 for a flight from Galveston to San Antonio. The cheapest flight overall is $246 while the most popular route, (Houston Hobby - San Antonio) is currently priced at $158.

  • 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, June is the cheapest month in which you can book a flight from Galveston to San Antonio (average of $77). Flying from Galveston to San Antonio in December is currently the most expensive (average of $222). 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
Kerrville

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Galveston to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$97Average$259FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$97Average$271FlexibilityNo cancel feeOn-time63%

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