$109+ 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SAT
Sep 30 — Oct 71
Round-trip
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
Cheapest
Best
Last-minute
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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 9/1611:20 am -
Nonstop1h 00m
Thu 9/176:50 pm -
Nonstop1h 05m
Deal found 8/26![Southwest logo]()
$217
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/248:18 pm -
1 stop3h 37m
Sat 9/262:03 pm -
1 stop3h 56m
Deal found 8/27![American Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 8/26. 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 11/1811:05 am -
Nonstop1h 10m
Thu 11/196:35 am -
Nonstop1h 00m
Deal found 8/26![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 8/31. 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 9/246:00 am -
1 stop4h 35m
Mon 9/286:00 am -
Nonstop1h 00m
Deal found 8/31![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 8/27. 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 9/241:45 pm -
Nonstop1h 00m
Sat 9/263:40 pm -
Nonstop1h 00m
Deal found 8/27![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 8/29. 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 9/293:30 pm -
2 stops7h 40m
Tue 10/66:50 am -
Nonstop1h 00m
Deal found 8/29![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 8/27. 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 10/13:05 pm -
Nonstop1h 00m
Fri 10/21:10 pm -
Nonstop1h 00m
Deal found 8/27![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 8/26. 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 9/2410:05 am -
Nonstop1h 05m
Sun 9/276:30 am -
Nonstop0h 55m
Deal found 8/26![Southwest logo]()
$264
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 August 31, 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 August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/29. 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 9/292:40 pm -
Nonstop1h 00m
Tue 10/67:00 pm -
1 stop3h 15m
Deal found 8/29![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 8/28. 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 10/1310:50 am -
Nonstop1h 00m
Wed 10/145:50 am -
1 stop3h 50m
Deal found 8/28![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 8/26. 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 11/182:55 pm -
1 stop6h 45m
Thu 11/1912:50 pm -
Nonstop1h 00m
Deal found 8/26![Southwest logo]()
$249
This Southwest deal was found by Cheapflights users on 8/28. 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 10/510:00 am -
1 stop3h 55m
Sat 10/102:20 pm -
1 stop4h 40m
Deal found 8/28![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 8/27. 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 10/13:05 pm -
Nonstop1h 00m
Fri 10/21:10 pm -
Nonstop1h 00m
Deal found 8/27![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 8/26. 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 9/2410:05 am -
Nonstop1h 05m
Sun 9/276:30 am -
Nonstop0h 55m
Deal found 8/26![Southwest logo]()
$264
This Southwest deal was found by Cheapflights users on 8/28. 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 9/2610:40 am -
Nonstop1h 00m
Sun 9/277:30 pm -
Nonstop1h 00m
Deal found 8/28![Southwest logo]()
$284
Last-minute flights from Galveston to San AntonioDiscover last-minute flight deals from Galveston to San Antonio. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Galveston to San Antonio. Data last updated August 31, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/248:18 pm -
1 stop3h 37m
Sat 9/262:03 pm -
1 stop3h 56m
Deal found 8/27![American Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 8/27. 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 9/2410:05 am -
Nonstop1h 05m
Sat 9/2612:55 pm -
1 stop5h 55m
Deal found 8/27![Southwest logo]()
$247
This Southwest deal was found by Cheapflights users on 8/31. 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 9/247:00 am -
1 stop3h 35m
Mon 9/285:40 pm -
1 stop4h 00m
Deal found 8/31![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 8/28. 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 9/248:55 pm -
Nonstop1h 05m
Sun 9/276:20 am -
1 stop3h 05m
Deal found 8/28![Southwest logo]()
$277
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/248:18 pm -
1 stop3h 37m
Sun 9/278:31 pm -
1 stop3h 19m
Deal found 8/28![American Airlines logo]()
$287
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/256:19 pm -
1 stop3h 40m
Sun 9/278:31 pm -
1 stop3h 19m
Deal found 8/27![American Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 8/29. 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 9/2610:30 am -
2 stops9h 25m
Sat 10/310:05 am -
1 stop4h 25m
Deal found 8/29![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 8/29. 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 9/293:30 pm -
2 stops7h 40m
Tue 10/66:50 am -
Nonstop1h 00m
Deal found 8/29![Southwest logo]()
$252
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 August 31, 2026.
Search for one-way flight options from Galveston to San Antonio. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Southwest deal was found by Cheapflights users on 8/26. 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 10/2610:00 am -
Nonstop1h 00m
Deal found 8/26![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 8/27. 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 9/2610:40 am -
Nonstop1h 00m
Deal found 8/27![Southwest logo]()
$119
This Southwest deal was found by Cheapflights users on 8/27. 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 10/136:00 am -
1 stop3h 05m
Deal found 8/27![Southwest logo]()
$129
This Southwest deal was found by Cheapflights users on 8/27. 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 11/267:45 am -
Nonstop1h 00m
Deal found 8/27![Southwest logo]()
$131
This Southwest deal was found by Cheapflights users on 8/31. 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 9/233:30 pm -
2 stops7h 40m
Deal found 8/31![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 8/27. 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 9/2510:05 am -
Nonstop1h 05m
Deal found 8/27![Southwest logo]()
$140
This Southwest deal was found by Cheapflights users on 8/31. 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 10/303:05 pm -
Nonstop1h 00m
Deal found 8/31![Southwest logo]()
$149
This Southwest deal was found by Cheapflights users on 8/26. 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 2/265:05 am -
1 stop5h 25m
Deal found 8/26![Southwest logo]()
$150
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/242:01 pm -
1 stop6h 34m
Deal found 8/27![American Airlines logo]()
$154
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 August 31, 2026.
Round-trip from | $237 (American Airlines) |
|---|---|
One-way from | $109 (Southwest) |
Popular in | January |
Cheapest in | October |
Average price | $519 |
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 7,457,451 searches. Data last updated August 31, 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 Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Tue 9/29
2:40 pm-3:40 pm
Nonstop1h 00m
San Antonio
Tue 10/6
7:00 pm-10:15 pm
1 stop3h 15m
$247
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Tue 10/13
10:50 am-11:50 am
Nonstop1h 00m
San Antonio
Wed 10/14
5:50 am-9:40 am
1 stop3h 50m
$247
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Wed 11/18
2:55 pm-9:40 pm
1 stop6h 45m
San Antonio
Thu 11/19
12:50 pm-1:50 pm
Nonstop1h 00m
$249
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Mon 10/5
10:00 am-1:55 pm
1 stop3h 55m
San Antonio
Sat 10/10
2:20 pm-7:00 pm
1 stop4h 40m
$257
Quickest round-trip
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Thu 10/1
3:05 pm-4:05 pm
Nonstop1h 00m
San Antonio
Fri 10/2
1:10 pm-2:10 pm
Nonstop1h 00m
$258
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Thu 9/24
10:05 am-11:10 am
Nonstop1h 05m
San Antonio
Sun 9/27
6:30 am-7:25 am
Nonstop0h 55m
$264
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Sat 9/26
10:40 am-11:40 am
Nonstop1h 00m
San Antonio
Sun 9/27
7:30 pm-8:30 pm
Nonstop1h 00m
$284
Cheapest one-way
Quickest one-way
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Tue 10/13
10:50 am-11:50 am
Nonstop1h 00m
$119
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Tue 9/29
11:20 am-12:20 pm
Nonstop1h 00m
$119
HoustonSan Antonio
HOU Houston Hobby - SAT San Antonio
HOUSAT
Houston Hobby
Tue 10/27
2:50 pm-3:50 pm
Nonstop1h 00m
$119
Showing 1-10 of 15 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 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 31, 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 at noon, which can drop the price by up to 28% 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 August 29, 2026.
Travelers seeking maximum savings on their Galveston to San Antonio flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday 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 31, 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.
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
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
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
San Antonio flight routes
Top destinations
Alternative routes for Galveston to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Antonio by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Galveston to San Antonio by cabin class
Find flights from Galveston to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Galveston and San Antonio flights
Browse other Galveston and San Antonio flight options. Last updated on August 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 31, 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 7,457,451 searches. Data last updated August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$133 | Average$485 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$439 | FlexibilityNo cancel fee | On-time63% |