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Cheap flights from St. Louis to San Antonio (STL - SAT) from $54

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 6/12. 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
jun. 4 — jun. 111
From?
To?
mar. 6/4
mar. 6/11
1 adult, Economy
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The best prices from Lambert-St Louis to San Antonio are usually found in August or May, booked 58 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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 mayo 30, 2024.

Popular in

December

Cheapest in

August

Round-trip from

$291

One-way from

$80
High demand for flights, 26% potential price rise
Search Deals
Best time to find cheap flights, 14% 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 46% 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 221% 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 $481, or $566 for flights within the next 24 hours.

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

August can be a great time to fly to San Antonio from St. Louis with a flight ticket averaging about $382. Cheapflights users have found deals in the month of August for as cheap as $198. The most expensive prices can be found in the month of December.

What is the cheapest time of day to fly from STL to 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 28% versus a flight in the afternoon.

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 2,784,634 searches. Data last updated mayo 30, 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.
jue. 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$187
mar. 6/187:44 pmSTL - SAT
1 stop23h 50mFrontier
sáb. 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/30$210
vie. 6/145:36 pmSTL - SAT
1 stop16h 05mFrontier
vie. 6/219:27 amSAT - STL
1 stop24h 02mFrontier
Deal found 5/29$219
sáb. 6/158:02 pmSTL - SAT
1 stop25h 55mFrontier
sáb. 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/29$220
vie. 6/75:36 pmSTL - SAT
1 stop20h 26mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$224
sáb. 7/278:02 pmSTL - SAT
1 stop25h 55mFrontier
sáb. 8/36:29 pmSAT - STL
1 stop27h 02mFrontier
Deal found 5/30$239
vie. 6/287:29 pmSTL - SAT
1 stop21h 58mFrontier
lun. 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Deal found 5/28$242
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
lun. 6/177:06 pmSAT - STL
1 stop12h 01mFrontier
Deal found 5/29$244
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
jue. 6/139:34 pmSAT - STL
1 stop13h 08mFrontier
Deal found 5/29$251

Cheap United Airlines flights from St. Louis to San Antonio

Explore cheap flight options specifically provided by United 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 2,784,634 searches. Data last updated mayo 30, 2024.
To aid your search, here are some of the cheapest United 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.
mar. 7/95:03 pmSTL - SAT
1 stop3h 50mUnited Airlines
mar. 7/165:30 amSAT - STL
2 stops6h 47mUnited Airlines
Deal found 5/29$446
sáb. 7/275:03 pmSTL - SAT
1 stop3h 50mUnited Airlines
sáb. 8/35:30 amSAT - STL
2 stops9h 06mUnited Airlines
Deal found 5/30$460
lun. 7/155:30 pmSTL - SAT
2 stops19h 34mUnited Airlines
jue. 7/185:50 pmSAT - STL
1 stop4h 27mUnited Airlines
Deal found 5/29$478
dom. 11/35:15 amSTL - SAT
1 stop6h 53mUnited Airlines
mié. 11/612:11 pmSAT - STL
2 stops8h 50mUnited Airlines
Deal found 5/29$494
dom. 6/166:15 amSTL - SAT
1 stop4h 48mUnited Airlines
mar. 6/185:30 amSAT - STL
2 stops8h 44mUnited Airlines
Deal found 5/30$533
mié. 6/59:05 amSTL - SAT
1 stop7h 46mUnited Airlines
mar. 6/115:30 amSAT - STL
2 stops8h 44mUnited Airlines
Deal found 5/29$553
mar. 6/1810:15 amSTL - SAT
2 stops9h 40mUnited Airlines
sáb. 6/225:30 amSAT - STL
2 stops8h 46mUnited Airlines
Deal found 5/30$558
jue. 6/64:45 pmSTL - SAT
1 stop7h 14mUnited Airlines
dom. 6/95:30 amSAT - STL
2 stops8h 46mUnited Airlines
Deal found 5/29$618
jue. 9/266:15 amSTL - SAT
1 stop6h 59mUnited Airlines
sáb. 10/54:21 pmSAT - STL
1 stop4h 25mUnited Airlines
Deal found 5/29$624

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 2,784,634 searches. Prices were last updated on mayo 30, 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.
mié. 6/58:02 pmSTL - SAT
1 stop23h 06mMultiple Airlines
mar. 6/115:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Deal found 5/29$176
jue. 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$187
dom. 6/211:22 pmSTL - SAT
1 stop9h 01mFrontier
mié. 6/58:34 pmSAT - STL
1 stop10h 33mFrontier
Deal found 5/29$216
vie. 6/145:36 pmSTL - SAT
1 stop16h 05mFrontier
vie. 6/219:27 amSAT - STL
1 stop24h 02mFrontier
Deal found 5/29$219
sáb. 6/158:02 pmSTL - SAT
1 stop25h 55mFrontier
sáb. 6/223:02 pmSAT - STL
1 stop23h 35mFrontier
Deal found 5/29$220
vie. 6/75:36 pmSTL - SAT
1 stop20h 26mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$224
vie. 6/287:29 pmSTL - SAT
1 stop21h 58mFrontier
lun. 7/18:11 pmSAT - STL
1 stop12h 14mFrontier
Deal found 5/28$242
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
lun. 6/177:06 pmSAT - STL
1 stop12h 01mFrontier
Deal found 5/29$244
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
jue. 6/139:34 pmSAT - STL
1 stop13h 08mFrontier
Deal found 5/29$251

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 2,784,634 searches. Data last updated mayo 30, 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.
mar. 8/1311:26 amSTL - SAT
1 stop26h 15mSpirit Airlines
mar. 8/278:41 pmSAT - STL
1 stop14h 05mSpirit Airlines
Deal found 5/29$139
mar. 7/93:23 pmSTL - SAT
1 stop9h 36mSpirit Airlines
mar. 7/169:40 pmSAT - STL
1 stop17h 26mSpirit Airlines
Deal found 5/29$173
mar. 8/2710:34 amSTL - SAT
1 stop13h 46mMultiple Airlines
dom. 9/16:40 pmSAT - STL
1 stop15h 38mMultiple Airlines
Deal found 5/30$174
mié. 6/58:02 pmSTL - SAT
1 stop23h 06mMultiple Airlines
mar. 6/115:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Deal found 5/29$176
mar. 7/1611:26 amSTL - SAT
1 stop25h 32mSpirit Airlines
mar. 7/232:33 pmSAT - STL
1 stop24h 33mSpirit Airlines
Deal found 5/29$181
mar. 7/1611:26 amSTL - SAT
2 stops13h 33mSpirit Airlines
mar. 7/239:40 pmSAT - STL
1 stop17h 26mSpirit Airlines
Deal found 5/29$183
jue. 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$187
mar. 7/23:23 pmSTL - SAT
1 stop9h 36mSpirit Airlines
mar. 7/95:21 amSAT - STL
1 stop9h 02mSpirit Airlines
Deal found 5/29$188
mar. 7/93:23 pmSTL - SAT
1 stop9h 36mMultiple Airlines
mié. 7/1010:05 pmSAT - STL
1 stop21h 52mMultiple Airlines
Deal found 5/29$191

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 2,784,634 searches. Data last updated mayo 30, 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.
mié. 6/58:02 pmSTL - SAT
1 stop23h 06mMultiple Airlines
mar. 6/115:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Deal found 5/29$176
jue. 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$187
vie. 6/75:36 pmSTL - SAT
1 stop20h 26mFrontier
dom. 6/910:58 pmSAT - STL
1 stop10h 31mFrontier
Deal found 5/29$224
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
lun. 6/177:06 pmSAT - STL
1 stop12h 01mFrontier
Deal found 5/29$244
dom. 6/97:44 pmSTL - SAT
1 stop22h 31mFrontier
jue. 6/139:34 pmSAT - STL
1 stop13h 08mFrontier
Deal found 5/29$251
mié. 6/54:10 pmSTL - SAT
3 stops29h 13mMultiple Airlines
mar. 6/115:21 amSAT - STL
1 stop9h 02mMultiple Airlines
Deal found 5/29$359
dom. 6/96:05 pmSTL - SAT
1 stop15h 39mMultiple Airlines
jue. 6/139:14 pmSAT - STL
2 stops15h 27mMultiple Airlines
Deal found 5/29$361
dom. 6/94:45 pmSTL - SAT
3 stops29h 03mMultiple Airlines
jue. 6/139:14 pmSAT - STL
1 stop17h 02mMultiple Airlines
Deal found 5/29$391
dom. 6/94:45 pmSTL - SAT
3 stops29h 03mMultiple Airlines
jue. 6/139:14 pmSAT - STL
2 stops15h 27mMultiple Airlines
Deal found 5/29$443

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 2,784,634 searches. Data last updated mayo 30, 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.
mié. 6/121:55 pmSTL - SAT
1 stop9h 06mSpirit Airlines
Deal found 5/29$54
mié. 6/191:55 pmSTL - SAT
1 stop6h 55mSpirit Airlines
Deal found 5/29$78
mar. 6/117:29 pmSTL - SAT
1 stop22h 13mFrontier
Deal found 5/29$79
jue. 6/63:32 pmSTL - SAT
1 stop16h 55mFrontier
Deal found 5/28$80
mié. 6/121:55 pmSTL - SAT
2 stops25h 43mSpirit Airlines
Deal found 5/29$111
mié. 7/314:02 pmSTL - SAT
1 stop27h 53mSpirit Airlines
Deal found 5/29$127
lun. 6/102:41 pmSTL - SAT
1 stop11h 14mSpirit Airlines
Deal found 5/29$131
dom. 6/166:30 amSTL - SAT
1 stop27h 21mSun Country Air
Deal found 5/29$138
mié. 7/314:02 pmSTL - SAT
2 stops23h 56mSpirit Airlines
Deal found 5/29$146

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 2,784,634 searches. Data last updated mayo 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$139 - $311

Route

Depart

Return

Price

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 8/13

1 stop26h 15m

San Antonio

mar. 8/27

1 stop14h 05m

$139

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 7/9

1 stop9h 36m

San Antonio

mar. 7/16

1 stop17h 26m

$173

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 8/27

1 stop13h 46m

San Antonio

dom. 9/1

1 stop15h 38m

$174

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 7/16

1 stop25h 32m

San Antonio

mar. 7/23

1 stop24h 33m

$181

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 7/9

1 stop9h 36m

San Antonio

mié. 7/10

1 stop21h 52m

$191

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mar. 6/18

1 stop23h 50m

San Antonio

sáb. 6/22

1 stop23h 35m

$210

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

vie. 6/14

1 stop16h 05m

San Antonio

vie. 6/21

1 stop24h 02m

$219

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

mié. 7/3

1 stop6h 06m

San Antonio

lun. 7/8

1 stop5h 19m

$292

Lambert-St LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

dom. 11/3

1 stop4h 12m

San Antonio

mié. 11/6

1 stop7h 09m

$311

Flights are sorted by cheapest first

Deals found on 5/29

How far ahead should I 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 24, 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

What is the cheapest day 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 May 26, 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

Best time to book a flight from St. Louis to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 mayo 30, 2024.
Peruse reviews from past customers who have flown with Frontier, United Airlines and Spirit 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
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,192 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,457 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,777 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,284 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Sun Country Air
7.2
Good
597 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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 45m 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 Spirit Airlines for just $139, but on average you can expect to pay $205.

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

    There are currently 14+ open flights from St. Louis to San Antonio within the next 7 days for less than $200.

  • What days are nonstop flights available from St. Louis to San Antonio?

    Nonstop flights can be found on the following days: Friday, Saturday.

  • How many flights depart from St. Louis to San Antonio on average per day?

    On average 3 flights depart from St. Louis to San Antonio per day.
    Morning (6am - Noon) - 33% of flight departures
    Afternoon (Noon - 6pm) - 67% of flight departures

  • How long is the flight from St. Louis to San Antonio?

    Departing from St. Louis to San Antonio will take you 23h 50m. The distance from St. Louis to San Antonio is about 790 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $139 on this airline. An additional option worth looking into is Frontier, starting at $210. Spirit Airlines is currently priced 63% 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 $54. Users have also found prices from $79 and $138 on Frontier and Sun Country Air, respectively.

  • 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 5/30.

  • 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 is the cheapest month to book a flight from St. Louis to San Antonio?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to San Antonio (average of $291). 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.

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 2,784,634 searches. Data last updated mayo 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$198FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$161Average$277FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$174Average$423FlexibilityNo cancel feeOn-time69%
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DeltaCheapest$176Average$316FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$257Average$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 mayo 30, 2024.
1%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
36%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 mayo 30, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday2daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to San Antonio?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Antonio from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Antonio?

Cheapflights helps you find that perfect flight to San Antonio from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Need flexible booking options for your flight to San Antonio from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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