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$58+ Cheap flights from Missouri 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Cheap flight deals from Missouri to San Antonio

Keep the following information in mind while searching for Missouri to San Antonio flight deals. Data was last updated November 12, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$184
(Kiwi.com)

One-way from

$58
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$425

Good round-trip deal

$506 or less
Provider with most accurate pricing for Lambert-St Louis-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-San Antonio flights.
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From Missouri to San Antonio
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One-way flight from Missouri to San Antonio
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Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Missouri to San Antonio.
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Find flight deals from Missouri to San Antonio

Cheapest flights from Missouri to San Antonio
Explore the most affordable flight options available from Missouri to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2025.

This Frontier deal was found by Cheapflights users on 11/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:54 pmSTL - SAT
1 stop12h 50mFrontier
Thu 12/49:10 amSAT - STL
1 stop13h 23mFrontier
Deal found 11/9$127
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:43 pmSTL - SAT
1 stop14h 27mFrontier
Sun 11/237:00 amSAT - STL
1 stop27h 02mFrontier
Deal found 11/11$134
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:43 pmSTL - SAT
1 stop14h 27mFrontier
Mon 11/245:07 pmSAT - STL
1 stop21h 22mFrontier
Deal found 11/11$148
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:43 pmSTL - SAT
1 stop28h 34mFrontier
Fri 1/910:13 amSAT - STL
1 stop23h 49mFrontier
Deal found 11/10$173
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:48 pmMCI - SAT
2 stops41h 07mFrontier
Fri 1/26:45 amSAT - MCI
1 stop13h 05mFrontier
Deal found 11/12$184
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:45 pmMCI - SAT
2 stops12h 38mFrontier
Sun 1/46:45 amSAT - MCI
1 stop13h 06mFrontier
Deal found 11/12$190
This Expedia deal was found by Cheapflights users on 11/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:57 pmSTL - SAT
1 stop28h 23mFrontier
Sun 11/307:39 pmSAT - STL
1 stop28h 18mFrontier
Deal found 11/10$198
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:47 pmMCI - SAT
1 stop26h 29mMultiple Airlines
Sun 1/46:45 amSAT - MCI
1 stop13h 06mMultiple Airlines
Deal found 11/12$208
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/269:54 pmSTL - SAT
1 stop15h 29mFrontier
Sun 11/307:39 pmSAT - STL
1 stop28h 18mFrontier
Deal found 11/11$212
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:58 amMCI - SAT
1 stop23h 10mMultiple Airlines
Tue 12/166:10 pmSAT - MCI
1 stop26h 34mMultiple Airlines
Deal found 11/11$214
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:43 pmSTL - SAT
1 stop18h 28mMultiple Airlines
Wed 12/176:10 pmSAT - STL
2 stops15h 30mMultiple Airlines
Deal found 11/12$214
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:43 pmSTL - SAT
1 stop28h 34mMultiple Airlines
Wed 12/2412:45 pmSAT - STL
1 stop9h 48mMultiple Airlines
Deal found 11/10$216

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Missouri to San Antonio that are best for you.

Fly from

Missouri

Fly to

San Antonio

Route

Depart

Return

Price

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 11/21

7:43 pm-10:10 am

1 stop14h 27m

San Antonio

Mon 11/24

5:07 pm-2:29 pm

1 stop21h 22m

$148

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 12/31

8:45 pm-1:14 pm

1 stop16h 29m

San Antonio

Sun 1/4

6:45 am-7:51 pm

1 stop13h 06m

$197

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 12/30

3:47 pm-6:16 pm

1 stop26h 29m

San Antonio

Sun 1/4

6:45 am-7:51 pm

1 stop13h 06m

$208

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 12/23

3:41 pm-9:33 pm

1 stop5h 52m

San Antonio

Wed 12/24

4:45 pm-11:38 pm

1 stop6h 53m

$227

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 1/28

4:28 pm-11:52 pm

1 stop7h 24m

San Antonio

Sat 1/31

6:30 am-3:33 pm

1 stop9h 03m

$229

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 11/26

9:54 pm-1:23 pm

1 stop15h 29m

San Antonio

Sun 11/30

12:14 pm-10:02 am

2 stops21h 48m

$230

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 12/17

6:00 am-1:43 pm

1 stop7h 43m

San Antonio

Tue 12/30

5:10 am-12:21 pm

1 stop7h 11m

$243

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 12/23

3:41 pm-9:33 pm

1 stop5h 52m

San Antonio

Sat 12/27

6:13 pm-11:42 pm

1 stop5h 29m

$243

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 12/23

3:41 pm-9:33 pm

1 stop5h 52m

San Antonio

Tue 12/30

6:22 pm-11:42 pm

1 stop5h 20m

$243

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 1/27

6:00 am-10:47 am

1 stop4h 47m

San Antonio

Thu 1/29

8:30 am-4:55 pm

1 stop8h 25m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 50 results
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Best time to book a flight from Missouri to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Missouri 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.

Cheapflights Insights

Everything you need to know about your flight from Missouri to San Antonio

What is the cheapest month to book a flight from Missouri to San Antonio?

Currently, November is the cheapest month in which you can book a flight from Missouri to San Antonio (average of $144). Flying from Missouri to San Antonio in June is currently the most expensive (average of $210). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to SAT?

Find hourly flight availability from Missouri 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 November 12, 2025.

When flying from Missouri to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 34% versus a flight in the evening.

What is the cheapest day to fly from Missouri to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Missouri to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to San Antonio flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Missouri to San Antonio?

Related info for your journey

Find useful and relevant information for your journey from Missouri 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 airport do you fly into for flights to San Antonio from Missouri?

    For a flight from Missouri to San Antonio, you will be flying into San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city.

  • How popular is this Missouri to San Antonio flight route?

    The Missouri to San Antonio flight path was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Missouri to San Antonio?

    Airlines like Frontier, Delta, and Spirit Airlines fly from Missouri to San Antonio in about 5h 52m. The time it takes to get you to your destination can typically vary by up to 8h 35m. Airlines will cover a distance of 786 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Missouri to San Antonio one-way?

    $69 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Southwest, with prices starting from $114 and $142, respectively.

  • What are the most popular routes from Missouri to San Antonio?

    While some choose either Kansas City - San Antonio or Springfield-Branson - San Antonio, Lambert-St Louis - San Antonio is the most popular route from Missouri to San Antonio.

  • What are the cheapest flights from Missouri to San Antonio?

    While on average a flight from Missouri to San Antonio is generally $622, our data shows the cheapest flight currently is $348. When looking at the most popular route, (Lambert-St Louis - San Antonio), you can expect to pay $205 for that flight.

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

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

  • How can I find direct flights from Missouri to San Antonio?

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

  • Can I find deals for business class flights from Missouri to San Antonio?

    Yes. Cheapflights offers flight deals from Missouri 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.

  • What is the cheapest month to book a flight from Missouri to San Antonio?

    Currently, November is the cheapest month in which you can book a flight from Missouri to San Antonio (average of $144). Flying from Missouri to San Antonio in June is currently the most expensive (average of $210). 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

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Missouri to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Missouri to San Antonio

Discover the top 6 airlines that operate flights from Missouri to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$124Average$263FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$151Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$373FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$376FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$212Average$296FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$228Average$348FlexibilityNo cancel feeOn-time69%

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