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Cheap flights from St. Louis to San Antonio (STL - SAT) from $64

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 6/5. 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 10 — May 171
From?
To?
Fri 5/10
Fri 5/17
1 adult, Economy
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The best prices from Lambert-St Louis to San Antonio are usually found in May or August, booked 58 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 May 5, 2024.

Popular in

December

Cheapest in

May

Round-trip from

$288

One-way from

$80
High demand for flights, 25% potential price rise
Search Deals
Best time to find cheap flights, 17% potential price drop
Search Deals
From Lambert-St Louis to San Antonio
Search Deals
One-way flight from Lambert-St Louis to San Antonio
Search Deals

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 50% 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 59 days in advance to save up to 97% 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 59 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 $348, or $566 for flights within the next 24 hours.

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

May can be a great time to fly to San Antonio from St. Louis with a flight ticket averaging about $387. Cheapflights users have found deals in the month of May for as cheap as $150. The most expensive prices can be found in the month of December.

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 2,719,943 searches. Data last updated May 5, 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.
Tue 5/2110:44 pmSTL - SAT
1 stop9h 39mFrontier
Wed 5/2212:50 pmSAT - STL
1 stop7h 20mFrontier
Deal found 5/4$98
Thu 9/263:53 pmSTL - SAT
1 stop16h 26mFrontier
Mon 9/307:57 amSAT - STL
1 stop12h 23mFrontier
Deal found 5/4$148
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 5/3$156
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/4$162
Tue 6/117:44 pmSTL - SAT
1 stop23h 35mFrontier
Fri 6/149:27 amSAT - STL
1 stop24h 02mFrontier
Deal found 5/4$184
Thu 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/4$196
Wed 6/198:16 amSTL - SAT
1 stop11h 18mFrontier
Sat 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/4$200
Fri 6/75:36 pmSTL - SAT
1 stop16h 05mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/4$224
Thu 6/203:32 pmSTL - SAT
1 stop16h 50mFrontier
Sun 6/2310:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/4$235

Cheap Spirit Airlines flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by Spirit 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 2,719,943 searches. Data last updated May 5, 2024.
To aid your search, here are some of the cheapest Spirit 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.
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/106:45 amSAT - STL
1 stop7h 06mSpirit Airlines
Deal found 5/4$160
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/108:28 pmSAT - STL
2 stops17h 55mSpirit Airlines
Deal found 5/4$193
Wed 5/1511:36 amSTL - SAT
1 stop9h 39mSpirit Airlines
Thu 5/1611:26 amSAT - STL
1 stop7h 14mSpirit Airlines
Deal found 5/4$217
Wed 6/51:55 pmSTL - SAT
3 stops25h 43mSpirit Airlines
Mon 6/108:28 pmSAT - STL
1 stop14h 29mSpirit Airlines
Deal found 5/4$225
Tue 6/113:23 pmSTL - SAT
2 stops21h 35mSpirit Airlines
Fri 6/148:28 pmSAT - STL
1 stop14h 06mSpirit Airlines
Deal found 5/4$248
Wed 6/51:55 pmSTL - SAT
3 stops25h 43mSpirit Airlines
Mon 6/108:28 pmSAT - STL
2 stops17h 55mSpirit Airlines
Deal found 5/4$253
Thu 6/68:12 pmSTL - SAT
3 stops25h 36mSpirit Airlines
Mon 6/108:28 pmSAT - STL
1 stop14h 29mSpirit Airlines
Deal found 5/4$263
Tue 6/113:23 pmSTL - SAT
2 stops21h 35mSpirit Airlines
Fri 6/148:28 pmSAT - STL
2 stops21h 00mSpirit Airlines
Deal found 5/4$268
Thu 6/66:22 pmSTL - SAT
2 stops25h 16mSpirit Airlines
Sun 6/95:21 amSAT - STL
1 stop11h 11mSpirit Airlines
Deal found 5/4$288

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

Find cheap flight options from St. Louis to San Antonio specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,719,943 searches. Prices were last updated on May 5, 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.
Tue 5/2110:44 pmSTL - SAT
1 stop9h 39mFrontier
Wed 5/2212:50 pmSAT - STL
1 stop7h 20mFrontier
Deal found 5/4$98
Wed 5/2911:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
Wed 6/510:34 pmSAT - STL
1 stop15h 58mMultiple Airlines
Deal found 5/4$132
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 5/3$156
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/106:45 amSAT - STL
1 stop7h 06mSpirit Airlines
Deal found 5/4$160
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/4$162
Tue 6/117:44 pmSTL - SAT
1 stop23h 35mFrontier
Fri 6/149:27 amSAT - STL
1 stop24h 02mFrontier
Deal found 5/4$184
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/108:28 pmSAT - STL
2 stops17h 55mSpirit Airlines
Deal found 5/4$193
Thu 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/4$196
Thu 6/67:29 pmSTL - SAT
1 stop19h 47mMultiple Airlines
Mon 6/106:45 amSAT - STL
1 stop7h 06mMultiple Airlines
Deal found 5/4$197

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 2,719,943 searches. Data last updated May 5, 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.
Tue 5/2110:44 pmSTL - SAT
1 stop9h 39mFrontier
Wed 5/2212:50 pmSAT - STL
1 stop7h 20mFrontier
Deal found 5/4$98
Wed 5/2911:36 amSTL - SAT
1 stop12h 07mMultiple Airlines
Wed 6/510:34 pmSAT - STL
1 stop15h 58mMultiple Airlines
Deal found 5/4$132
Thu 9/263:53 pmSTL - SAT
1 stop16h 26mFrontier
Mon 9/307:57 amSAT - STL
1 stop12h 23mFrontier
Deal found 5/4$148
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 5/3$156
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/106:45 amSAT - STL
1 stop7h 06mSpirit Airlines
Deal found 5/4$160
Sun 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
Wed 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/4$162
Tue 6/117:44 pmSTL - SAT
1 stop23h 35mFrontier
Fri 6/149:27 amSAT - STL
1 stop24h 02mFrontier
Deal found 5/4$184
Wed 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Mon 6/108:28 pmSAT - STL
2 stops17h 55mSpirit Airlines
Deal found 5/4$193
Thu 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
Sun 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/4$196

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 2,719,943 searches. Data last updated May 5, 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.
Fri 5/105:35 pmSTL - SAT
1 stop14h 45mFrontier
Mon 5/139:36 pmSAT - STL
1 stop12h 33mFrontier
Deal found 5/3$156
Wed 5/1511:36 amSTL - SAT
1 stop9h 39mSpirit Airlines
Thu 5/1611:26 amSAT - STL
1 stop7h 14mSpirit Airlines
Deal found 5/4$217
Wed 5/1511:36 amSTL - SAT
1 stop9h 39mMultiple Airlines
Thu 5/166:45 amSAT - STL
2 stops29h 35mMultiple Airlines
Deal found 5/4$284
Wed 5/1511:36 amSTL - SAT
1 stop9h 39mMultiple Airlines
Thu 5/166:45 amSAT - STL
3 stops29h 35mMultiple Airlines
Deal found 5/4$343
Fri 5/108:55 pmSTL - SAT
3 stops26h 48mMultiple Airlines
Mon 5/136:45 amSAT - STL
1 stop8h 29mMultiple Airlines
Deal found 5/3$439
Fri 5/103:55 pmSTL - SAT
3 stops31h 48mMultiple Airlines
Mon 5/1310:30 pmSAT - STL
3 stops21h 50mMultiple Airlines
Deal found 5/3$491
Fri 5/103:55 pmSTL - SAT
3 stops31h 48mMultiple Airlines
Mon 5/135:25 pmSAT - STL
2 stops16h 14mMultiple Airlines
Deal found 5/3$498
Fri 5/104:05 pmSTL - SAT
1 stop7h 38mSpirit Airlines
Mon 5/136:30 pmSAT - STL
2 stops15h 09mSpirit Airlines
Deal found 5/3$504
Wed 5/1511:36 amSTL - SAT
3 stops28h 22mMultiple Airlines
Thu 5/168:41 pmSAT - STL
3 stops19h 34mMultiple Airlines
Deal found 5/4$541

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 2,719,943 searches. Data last updated May 5, 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 6/51:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Deal found 5/4$64
Wed 5/1511:36 amSTL - SAT
1 stop9h 39mSpirit Airlines
Deal found 5/4$76
Sat 6/88:02 pmSTL - SAT
1 stop25h 55mFrontier
Deal found 5/4$80
Wed 6/51:55 pmSTL - SAT
2 stops25h 43mSpirit Airlines
Deal found 5/4$117
Mon 5/274:05 pmSTL - SAT
1 stop8h 36mSpirit Airlines
Deal found 5/4$121
Wed 6/51:55 pmSTL - SAT
3 stops25h 43mSpirit Airlines
Deal found 5/4$123
Sat 6/86:22 pmSTL - SAT
2 stops23h 47mSpirit Airlines
Deal found 5/4$164
Sat 6/811:34 amSTL - SAT
3 stops33h 49mSpirit Airlines
Deal found 5/4$190
Thu 6/66:11 amSTL - SAT
1 stop5h 46mDelta
Deal found 5/3$198

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 2,719,943 searches. Data last updated May 5, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$98 - $327

Route

Depart

Return

Price

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 5/21

1 stop9h 39m

San Antonio

Wed 5/22

1 stop7h 20m

$98

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 5/29

1 stop12h 07m

San Antonio

Wed 6/5

1 stop15h 58m

$132

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 5/28

1 stop22h 25m

San Antonio

Tue 6/4

1 stop16h 24m

$140

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 9/26

1 stop16h 26m

San Antonio

Mon 9/30

1 stop12h 23m

$148

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 6/5

1 stop9h 06m

San Antonio

Mon 6/10

1 stop7h 06m

$160

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Sun 6/2

1 stop9h 01m

San Antonio

Wed 6/5

1 stop10h 33m

$162

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 6/5

1 stop9h 06m

San Antonio

Mon 6/10

2 stops17h 55m

$193

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Mon 6/24

1 stop4h 46m

San Antonio

Tue 7/2

1 stop6h 09m

$310

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 10/4

1 stop4h 44m

San Antonio

Sun 10/6

1 stop7h 14m

$327

Flights are sorted by cheapest first

Deals found on 5/4

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 May 3, 2024.
Booking 58 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 $126 while a round-trip flight costs $186. Price data was last updated on April 28, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to San Antonio (average of $288). 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

$318

March

$376

April

$346

May

$333

June

$368

July

$348

August

$298

September

$288

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 May 5, 2024.
Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and American 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
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

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
9,134 reviews
Alaska Airlines
8.1
Very good
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

Food

7.3

Reviews

1 / 10

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

Delta
8.1
Very good
10,826 reviews
Alaska Airlines
8.1
Very good
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

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
11,118 reviews
Alaska Airlines
8.1
Very good
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

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
14,713 reviews
Alaska Airlines
8.1
Very good
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

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
8,721 reviews
Alaska Airlines
8.1
Very good
9,134 reviews
Check prices

Boarding

8.2

Crew

8.6

Overall

8.1

Comfort

7.9

Entertainment

7.3

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 4h 44m 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 $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Antonio for under $100. The cheapest flight booked recently is on Frontier for just $98, but on average you can expect to pay $199.

  • Are there last-minute flights available from St. Louis to San Antonio for under $200?

    There are currently 9+ open flights from St. Louis to San Antonio within the next 7 days for less than $200.

  • 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 $98 on this airline. Additional options worth looking into are Spirit Airlines and American Airlines, starting at $160 and $310 round-trip. Frontier is currently priced 74% 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 $64. Users have also found prices from $80 and $198 on Frontier and Delta, 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 5/4.

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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Branson to George Bush Intcntl flights

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 2,719,943 searches. Data last updated May 5, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$201FlexibilityNo cancel feeOn-time62%
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Spirit AirlinesCheapest$161Average$277FlexibilityNo cancel feeOn-time65%
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United AirlinesCheapest$174Average$413FlexibilityNo cancel feeOn-time69%
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DeltaCheapest$176Average$303FlexibilityNo cancel feeOn-timeN/A
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American AirlinesCheapest$252Average$406FlexibilityNo 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 May 5, 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 May 5, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights

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