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Cheap flights from St. Louis to San Antonio (STL - SAT) from $62

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 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SAT
May 4 — May 111
From?
To?
Sat 5/4
Sat 5/11
1 adult, Economy
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The best prices from Lambert-St Louis to San Antonio are usually found in January or February, booked 47 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from St. Louis to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2024.

Popular in

March

Cheapest in

January

Round-trip from

$289

One-way from

$139
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 23% potential price drop
Search Deals
From Lambert-St Louis to San Antonio
Search Deals
One-way flight from Lambert-St Louis to San Antonio
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What is the cheapest day to fly round-trip from St. Louis to San Antonio?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 52% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to San Antonio?

Travelers have found it’s best to book a flight 48 days in advance to save up to 43% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 48 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to San Antonio 1-2 weeks in advance for as low as $188, or $315 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to San Antonio?

January can be a great time to fly to San Antonio from St. Louis with a flight ticket averaging about $358. Cheapflights users have found deals in the month of January for as cheap as $154. The most expensive prices can be found in the month of March.

When is the cheapest time to fly from St. Louis to San Antonio (STL - SAT)?

When flying from St. Louis 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 18% versus a flight in the morning.

Cheap Frontier flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and San Antonio. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Check out some of the cheapest Frontier flights we've come across from St. Louis to San Antonio. Come back soon if you're not finding the exact deal you're looking for.
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/28$160
Tue 5/144:50 pmSTL - SAT
1 stop18h 32mFrontier
Sat 5/186:48 pmSAT - STL
1 stop15h 25mFrontier
Deal found 4/28$161
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:19 pmSAT - STL
1 stop10h 49mFrontier
Deal found 4/28$180
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop24h 23mFrontier
Deal found 4/28$181
Fri 5/247:44 pmSTL - SAT
1 stop15h 21mFrontier
Mon 5/279:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/27$201
Fri 6/75:36 pmSTL - SAT
1 stop20h 26mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 32mFrontier
Deal found 4/28$224
Thu 10/36:42 pmSTL - SAT
1 stop12h 15mFrontier
Mon 10/77:57 amSAT - STL
1 stop12h 23mFrontier
Deal found 4/28$237
Sun 5/127:16 pmSTL - SAT
1 stop20h 21mFrontier
Fri 5/1710:20 pmSAT - STL
1 stop11h 53mFrontier
Deal found 4/28$238
Sun 5/127:51 pmSTL - SAT
1 stop24h 45mFrontier
Fri 5/178:53 pmSAT - STL
1 stop19h 32mFrontier
Deal found 4/28$239

Cheap American Airlines flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and San Antonio. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from St. Louis to San Antonio. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 8/102:38 pmSTL - SAT
1 stop7h 38mAmerican Airlines
Wed 8/145:53 pmSAT - STL
1 stop5h 27mAmerican Airlines
Deal found 4/27$266
Sun 5/265:21 amSTL - SAT
1 stop10h 25mAmerican Airlines
Sun 6/212:28 pmSAT - STL
1 stop7h 00mAmerican Airlines
Deal found 4/28$282
Tue 7/95:22 amSTL - SAT
1 stop3h 56mAmerican Airlines
Sun 7/145:05 amSAT - STL
1 stop4h 24mAmerican Airlines
Deal found 4/28$302
Sat 7/273:18 pmSTL - SAT
1 stop6h 42mAmerican Airlines
Sat 8/35:05 amSAT - STL
1 stop4h 24mAmerican Airlines
Deal found 4/28$318
Fri 8/309:09 amSTL - SAT
1 stop7h 55mAmerican Airlines
Tue 9/39:46 amSAT - STL
2 stops12h 22mAmerican Airlines
Deal found 4/29$560
Tue 7/96:04 amSTL - SAT
2 stops7h 56mAmerican Airlines
Mon 7/156:45 pmSAT - STL
1 stop4h 07mAmerican Airlines
Deal found 4/28$563
Wed 7/106:04 amSTL - SAT
2 stops9h 40mAmerican Airlines
Wed 7/177:27 amSAT - STL
2 stops9h 52mAmerican Airlines
Deal found 4/29$566
Sun 8/46:04 amSTL - SAT
2 stops9h 40mAmerican Airlines
Sun 8/186:10 amSAT - STL
1 stop5h 45mAmerican Airlines
Deal found 4/28$601
Tue 7/96:04 amSTL - SAT
2 stops7h 56mAmerican Airlines
Mon 7/157:27 amSAT - STL
2 stops9h 52mAmerican Airlines
Deal found 4/28$606

Cheap St. Louis to San Antonio flights in April & May 2024

Find cheap flight options from St. Louis to San Antonio specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Prices were last updated on April 29, 2024.
These are some of the most attractive deals on flights from St. Louis to San Antonio in 2024. Check back in a little while for more flight options.
Wed 5/1511:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
Sat 5/1810:46 amSAT - STL
1 stop20h 22mMultiple Airlines
Deal found 4/28$142
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/28$160
Tue 5/144:50 pmSTL - SAT
1 stop18h 32mFrontier
Sat 5/186:48 pmSAT - STL
1 stop15h 25mFrontier
Deal found 4/28$161
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop24h 23mFrontier
Deal found 4/28$181
Fri 5/247:44 pmSTL - SAT
1 stop15h 21mFrontier
Mon 5/279:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/27$201
Mon 5/204:05 pmSTL - SAT
1 stop8h 36mMultiple Airlines
Mon 5/279:50 pmSAT - STL
1 stop12h 23mMultiple Airlines
Deal found 4/28$207
Sat 5/185:15 pmSTL - SAT
1 stop7h 06mSpirit Airlines
Sun 5/198:41 pmSAT - STL
1 stop18h 33mSpirit Airlines
Deal found 4/28$220
Sun 5/127:16 pmSTL - SAT
1 stop20h 21mFrontier
Fri 5/1710:20 pmSAT - STL
1 stop11h 53mFrontier
Deal found 4/28$238
Sun 5/127:51 pmSTL - SAT
1 stop24h 45mFrontier
Fri 5/178:53 pmSAT - STL
1 stop19h 32mFrontier
Deal found 4/28$239

St. Louis to San Antonio 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Antonio in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
These are some of the most attractive deals on flights from St. Louis to San Antonio in 2024. Check back in a little while for more flight options.
Wed 5/1511:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
Sat 5/1810:46 amSAT - STL
1 stop20h 22mMultiple Airlines
Deal found 4/28$142
Thu 5/1611:06 pmSTL - SAT
1 stop9h 17mFrontier
Mon 5/208:00 pmSAT - STL
1 stop11h 08mFrontier
Deal found 4/28$160
Tue 5/144:50 pmSTL - SAT
1 stop18h 32mFrontier
Sat 5/186:48 pmSAT - STL
1 stop15h 25mFrontier
Deal found 4/28$161
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:19 pmSAT - STL
1 stop10h 49mFrontier
Deal found 4/28$180
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop24h 23mFrontier
Deal found 4/28$181
Fri 5/247:44 pmSTL - SAT
1 stop15h 21mFrontier
Mon 5/279:50 pmSAT - STL
1 stop12h 23mFrontier
Deal found 4/27$201
Mon 5/204:05 pmSTL - SAT
1 stop8h 36mMultiple Airlines
Mon 5/279:50 pmSAT - STL
1 stop12h 23mMultiple Airlines
Deal found 4/28$207
Sat 5/185:15 pmSTL - SAT
1 stop7h 06mSpirit Airlines
Sun 5/198:41 pmSAT - STL
1 stop18h 33mSpirit Airlines
Deal found 4/28$220
Fri 6/75:36 pmSTL - SAT
1 stop20h 26mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 32mFrontier
Deal found 4/28$224

St. Louis to San Antonio flights leaving soon

Find last-minute flight options from St. Louis to San Antonio for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Users seeking a last-minute flight from St. Louis to San Antonio should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 5/97:16 pmSTL - SAT
1 stop18h 41mMultiple Airlines
Sat 5/115:46 amSAT - STL
1 stop10h 39mMultiple Airlines
Deal found 4/29$240
Thu 5/97:30 amSTL - SAT
3 stops27h 39mMultiple Airlines
Sat 5/115:46 amSAT - STL
1 stop10h 39mMultiple Airlines
Deal found 4/29$358
Thu 5/96:19 pmSTL - SAT
2 stops23h 21mSpirit Airlines
Sat 5/115:46 amSAT - STL
1 stop10h 39mSpirit Airlines
Deal found 4/29$428
Thu 5/97:30 amSTL - SAT
3 stops27h 39mMultiple Airlines
Sat 5/115:10 pmSAT - STL
2 stops24h 19mMultiple Airlines
Deal found 4/29$436
Thu 5/97:30 amSTL - SAT
3 stops27h 39mMultiple Airlines
Sat 5/115:10 pmSAT - STL
3 stops22h 20mMultiple Airlines
Deal found 4/29$462
Tue 5/73:05 pmSTL - SAT
1 stop8h 02mDelta
Wed 5/84:15 pmSAT - STL
1 stop7h 25mDelta
Deal found 4/28$484
Tue 5/710:10 amSTL - SAT
2 stops10h 38mUnited Airlines
Wed 5/87:22 amSAT - STL
1 stop5h 19mUnited Airlines
Deal found 4/27$559

One-way flights to San Antonio from St. Louis

Search for one-way flight options from St. Louis to San Antonio. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
If you're seeking multiple options on one-way flights from St. Louis to San Antonio, be sure to check out these deals, which are updated often. Those seeking round-trip flights from St. Louis to San Antonio should utilize the search form at the the top of the page.
Wed 5/811:36 amSTL - SAT
1 stop9h 39mSpirit Airlines
Deal found 4/28$62
Wed 6/191:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Deal found 4/28$96
Mon 5/274:05 pmSTL - SAT
1 stop8h 36mSpirit Airlines
Deal found 4/28$121
Sat 5/47:51 pmSTL - SAT
1 stop15h 05mFrontier
Deal found 4/28$139
Mon 5/278:35 pmSTL - SAT
3 stops27h 46mMultiple Airlines
Deal found 4/28$184
Wed 6/191:55 pmSTL - SAT
2 stops19h 56mMultiple Airlines
Deal found 4/28$189
Wed 6/1912:15 pmSTL - SAT
3 stops21h 36mMultiple Airlines
Deal found 4/28$214
Sat 5/412:00 pmSTL - SAT
3 stops36h 42mMultiple Airlines
Deal found 4/28$226
Wed 5/810:10 amSTL - SAT
2 stops10h 38mUnited Airlines
Deal found 4/28$247

Find flights from St. Louis to San Antonio within your budget

Customize your flight search to find flights from St. Louis 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 2,944,896 searches. Data last updated April 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$142 - $475

Route

Depart

Return

Price

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 5/15

1 stop12h 07m

San Antonio

Sat 5/18

1 stop20h 22m

$142

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 5/16

1 stop9h 17m

San Antonio

Mon 5/20

1 stop11h 08m

$160

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 5/14

1 stop18h 32m

San Antonio

Sat 5/18

1 stop15h 25m

$161

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Sun 6/2

1 stop9h 01m

San Antonio

Wed 6/5

1 stop10h 49m

$180

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 5/10

1 stop14h 45m

San Antonio

Mon 5/13

1 stop24h 23m

$181

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Mon 5/20

1 stop8h 36m

San Antonio

Mon 5/27

1 stop12h 23m

$207

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Sat 5/18

1 stop7h 06m

San Antonio

Sun 5/19

1 stop18h 33m

$220

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Sat 8/10

1 stop7h 38m

San Antonio

Wed 8/14

1 stop5h 27m

$266

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Mon 7/1

2 stops10h 34m

San Antonio

Tue 7/9

1 stop4h 24m

$475

Flights are sorted by cheapest first

Deals found on 4/28

When is the best time to book a flight from St. Louis to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Antonio. Price data was last updated on January 28, 2024.
Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from St. Louis to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Antonio. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Antonio flight should consider departing on Tuesday at noon 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.
Search Deals

Average price of flights to San Antonio by month

Plan your trip from St. Louis to San Antonio by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Antonio is currently $164 while a round-trip flight costs $221. Price data was last updated on April 21, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to San Antonio (average of $289). Flying from St. Louis 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.

January

$303

February

$317

March

$376

April

$344

May

$332

June

$366

July

$350

August

$298

September

$289

October

$298

November

$315

December

$313

Temperature and rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature and rainfall totals by month.

SAT

Temperature

51.8 - 84.2 °F

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 April 29, 2024.
Peruse reviews from past customers who have flown with Frontier, American Airlines and United Airlines from St. Louis to San Antonio to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,110 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,221 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,844 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Spirit Airlines
6.4
Okay
8,739 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Frontier
6.3
Okay
4,123 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 airports do I use to fly from St. Louis to San Antonio?

    Booking a flight from Lambert-St Louis (STL) to San Antonio (SAT) is your only option if you wish to fly from St. Louis to San Antonio. On a typical day, there is 1 flight from Lambert-St Louis to San Antonio, all of which are around 5h 00m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Lambert-St Louis to San Antonio.

  • Can I find flights from St. Louis to San Antonio for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Antonio for under $200. The cheapest flight booked recently is on Multiple Airlines for just $142, but on average you can expect to pay $226.

  • Are there last-minute flights available from St. Louis to San Antonio for under $300?

    There are currently 7+ open flights from St. Louis to San Antonio within the next 7 days for less than $300.

  • What are the cheapest airlines flying from St. Louis to San Antonio round-trip?

    Our cheapest airline available from St. Louis to San Antonio is Frontier. Our recent data shows that you can find tickets from as low as $160 on this airline. Additional options worth looking into are Spirit Airlines and American Airlines, starting at $220 and $266 round-trip. Frontier is currently priced 55% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to San Antonio one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $62. Users have also found prices from $139 and $247 on Frontier and United Airlines, respectively.

  • What are the most popular airlines that fly from St. Louis to San Antonio?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to San Antonio.

  • What does STL to SAT mean?

    This is defined as Lambert-St Louis Airport (STL) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to San Antonio that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to San Antonio with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from St. Louis to San Antonio?

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

  • Can I find deals for business class flights from St. Louis to San Antonio?

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • Can I find deals for flights from St. Louis to San Antonio that allow pets onboard?

    Many airlines flying from St. Louis to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to San Antonio?

    Yes, you can often find last-minute deals on St. Louis to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to San Antonio flight deals updated?

    The St. Louis to San Antonio flight deals you see on this page were last updated on 4/28.

See more FAQs

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Alternative routes for St. Louis to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from St. Louis to San Antonio

Discover the top 5 airlines that operate flights from St. Louis 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 2,944,896 searches. Data last updated April 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$208FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$161Average$277FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$174Average$413FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$176Average$296FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$250Average$408FlexibilityNo cancel feeOn-time71%
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Search flights from St. Louis to San Antonio by cabin class

Find flights from St. Louis to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from St. Louis to San Antonio

Find hourly flight availability from St. Louis 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 April 29, 2024.
1%of flight departuresEarly morningMidnight to 6 am
54%of flight departuresMorning6 am to noon
18%of flight departuresAfternoonNoon to 6 pm
27%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to San Antonio

Explore weekly flight availability from St. Louis 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 April 29, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights

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Can Cheapflights find flights from St. Louis to San Antonio with no change fees?

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