$99+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAT
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Find cheap flights from Galveston to San Antonio with Cheapflights
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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
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Best
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One-way
Cheapest flights from Galveston to San AntonioExplore 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 March 23, 2026.
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 March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 4/237:00 am
HOU
- SAT
1 stop5h 25m
Southwest
Tue 4/285:05 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/23![Southwest logo]()
$229
This Southwest deal was found by Cheapflights users on 3/19. 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 4/1510:55 am
HOU
- SAT
Nonstop1h 05m
Southwest
Wed 4/155:05 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/19![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 3/22. 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.
Sat 4/258:15 am
HOU
- SAT
Nonstop1h 00m
Southwest
Mon 4/275:45 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/22![Southwest logo]()
$240
This Southwest deal was found by Cheapflights users on 3/19. 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.
Thu 4/910:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Mon 4/135:45 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/19![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 5/75:30 pm
HOU
- SAT
1 stop6h 00m
Southwest
Thu 5/144:45 pm
SAT
- HOU
1 stop7h 10m
Southwest
Deal found 3/23![Southwest logo]()
$259
Best flights from Galveston to San AntonioDiscover carefully curated flight deals from Galveston to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from Galveston to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 4/237:00 am
HOU
- SAT
1 stop5h 25m
Southwest
Tue 4/2812:30 pm
SAT
- HOU
1 stop5h 20m
Southwest
Deal found 3/23![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 5/76:40 pm
HOU
- SAT
1 stop5h 50m
Southwest
Thu 5/145:45 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/23![Southwest logo]()
$250
This Southwest deal was found by Cheapflights users on 3/18. 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.
Fri 4/179:30 am
HOU
- SAT
1 stop3h 45m
Southwest
Sat 4/183:40 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/18![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 3/19. 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.
Thu 4/96:00 am
HOU
- SAT
1 stop3h 15m
Southwest
Mon 4/137:30 am
SAT
- HOU
1 stop6h 25m
Southwest
Deal found 3/19![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 3/19. 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.
Fri 4/175:30 pm
HOU
- SAT
1 stop4h 30m
Southwest
Sun 4/196:40 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/19![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 3/18. 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.
Fri 4/1010:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Sun 4/126:10 am
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/18![Southwest logo]()
$304
This Southwest deal was found by Cheapflights users on 3/21. 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.
Thu 4/2310:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Sun 4/266:10 am
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/21![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 3/21. 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.
Mon 5/255:30 pm
HOU
- SAT
1 stop4h 30m
Southwest
Sat 5/303:40 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/21![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 3/20. 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.
Fri 6/1210:35 pm
HOU
- SAT
Nonstop0h 55m
Southwest
Sun 6/147:30 am
SAT
- HOU
1 stop3h 05m
Southwest
Deal found 3/20![Southwest logo]()
$319
Last-minute flights from Galveston to San AntonioDiscover last-minute flight deals from Galveston to San Antonio. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Galveston to San Antonio. Data last updated March 23, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 3/19. 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.
Thu 4/910:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Mon 4/135:45 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/19![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 3/19. 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 4/1510:55 am
HOU
- SAT
Nonstop1h 05m
Southwest
Wed 4/155:05 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/19![Southwest logo]()
$237
This American Airlines deal was found by Cheapflights users on 3/23. 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 4/208:21 pm
HOU
- SAT
1 stop3h 35m
American Airlines
Mon 4/278:31 pm
SAT
- HOU
1 stop3h 16m
American Airlines
Deal found 3/23![American Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 4/237:00 am
HOU
- SAT
1 stop5h 25m
Southwest
Tue 4/285:05 pm
SAT
- HOU
Nonstop1h 05m
Southwest
Deal found 3/23![Southwest logo]()
$229
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 4/258:15 am
HOU
- SAT
Nonstop1h 00m
Southwest
Mon 4/271:00 pm
SAT
- HOU
Nonstop1h 00m
Southwest
Deal found 3/23![Southwest logo]()
$240
One-way flights from Galveston to San AntonioSearch for one-way flight options from Galveston to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from Galveston to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/22. 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 4/222:50 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Deal found 3/22![Southwest logo]()
$99
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 4/3010:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Deal found 3/23![Southwest logo]()
$120
This Southwest deal was found by Cheapflights users on 3/20. 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.
Thu 4/1610:25 am
HOU
- SAT
Nonstop1h 00m
Southwest
Deal found 3/20![Southwest logo]()
$129
This American Airlines deal was found by Cheapflights users on 3/23. 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 4/168:21 pm
HOU
- SAT
1 stop3h 35m
American Airlines
Deal found 3/23![American Airlines logo]()
$130
This Southwest deal was found by Cheapflights users on 3/20. 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 5/1910:25 am
HOU
- SAT
2 stops6h 55m
Southwest
Deal found 3/20![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 3/22. 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.
Fri 4/2410:00 pm
HOU
- SAT
Nonstop1h 00m
Southwest
Deal found 3/22![Southwest logo]()
$141
This Southwest deal was found by Cheapflights users on 3/19. 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.
Sat 4/183:00 pm
HOU
- SAT
2 stops6h 00m
Southwest
Deal found 3/19![Southwest logo]()
$144
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 March 23, 2026.
Round-trip from | $229 (Southwest) |
|---|---|
One-way from | $99 (Southwest) |
Popular in | January |
Cheapest in | August |
Average price | $455 |
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 March 23, 2026.
Use the filters below to find and compare flights from Galveston to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Thu 4/23
7:00 am-12:25 pm
1 stop5h 25m
San Antonio
Tue 4/28
12:30 pm-5:50 pm
1 stop5h 20m
$239
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Thu 5/7
6:40 pm-12:30 am
1 stop5h 50m
San Antonio
Thu 5/14
5:45 pm-6:45 pm
Nonstop1h 00m
$250
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Fri 4/17
9:30 am-1:15 pm
1 stop3h 45m
San Antonio
Sat 4/18
3:40 pm-4:45 pm
Nonstop1h 05m
$267
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Thu 4/9
6:00 am-9:15 am
1 stop3h 15m
San Antonio
Mon 4/13
7:30 am-1:55 pm
1 stop6h 25m
$277
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Fri 4/17
5:30 pm-10:00 pm
1 stop4h 30m
San Antonio
Sun 4/19
6:40 pm-7:40 pm
Nonstop1h 00m
$293
Quickest round-trip
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Fri 4/10
10:00 pm-11:00 pm
Nonstop1h 00m
San Antonio
Sun 4/12
6:10 am-7:10 am
Nonstop1h 00m
$304
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Thu 4/23
10:00 pm-11:00 pm
Nonstop1h 00m
San Antonio
Sun 4/26
6:10 am-7:10 am
Nonstop1h 00m
$309
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Mon 5/25
5:30 pm-10:00 pm
1 stop4h 30m
San Antonio
Sat 5/30
3:40 pm-4:45 pm
Nonstop1h 05m
$319
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Fri 6/12
10:35 pm-11:30 pm
Nonstop0h 55m
San Antonio
Sun 6/14
7:30 am-10:35 am
1 stop3h 05m
$319
Cheapest one-way
Quickest one-way
HoustonSan Antonio
HOU - SAT
HOUSAT
Houston Hobby
Wed 4/22
2:50 pm-3:50 pm
Nonstop1h 00m
$99
Showing 1-10 of 19 resultsSorted by cheapest first
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.
HOU-SAT
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
G4L-SAT
HOU-SAT
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 January is currently the most expensive (average of $255). 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 March 23, 2026.
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 morning, which can drop the price by up to 19% versus a flight in the evening.
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 March 23, 2026.
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. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Galveston to San Antonio
Explore weekly flight availability from Galveston to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 23, 2026.
The most flights from G4L to SAT are scheduled on a Saturday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
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 March 23, 2026.
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.
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Galveston and San Antonio flights
Browse other Galveston and San Antonio flight options. Last updated on March 23, 2026.
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Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 23, 2026.
Galveston to San Antonio flights
Consider these flights traveling from Galveston to San Antonio.
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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$323 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$97 | Average$310 | FlexibilityNo cancel fee | On-time63% |