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$83+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$160
(FlightHub)

One-way from

$83
(Priceline)

Popular in

November

Cheapest in

August

Average price

$274

Good round-trip deal

$180 or less

Good one-way deal

$108 or less
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. 8% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Missouri to San Antonio.
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Price to beat on a one-way 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 August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:38 pmMCI - SAT
1 stop19h 59mFrontier
Sun 10/265:45 pmSAT - MCI
1 stop16h 57mFrontier
Deal found 8/14$160
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:00 pmSTL - SAT
1 stop24h 30mFrontier
Sun 9/218:20 pmSAT - STL
1 stop12h 46mFrontier
Deal found 8/14$160
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:00 pmSTL - SAT
1 stop24h 30mFrontier
Sun 9/288:20 pmSAT - STL
1 stop12h 46mFrontier
Deal found 8/13$162
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:02 pmMCI - SAT
1 stop24h 39mFrontier
Fri 10/248:26 pmSAT - MCI
1 stop21h 29mFrontier
Deal found 8/13$171
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:55 pmSTL - SAT
1 stop23h 20mFrontier
Sun 9/149:55 amSAT - STL
1 stop23h 11mFrontier
Deal found 8/13$173
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:00 amSTL - SAT
1 stop5h 51mDelta
Wed 9/176:02 pmSAT - STL
1 stop5h 07mDelta
Deal found 8/13$199
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:52 pmSTL - SAT
1 stop15h 22mFrontier
Sat 10/115:32 pmSAT - STL
1 stop15h 35mFrontier
Deal found 8/14$205
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:01 pmMCI - SAT
1 stop23h 26mMultiple Airlines
Mon 9/2912:45 pmSAT - MCI
1 stop10h 22mMultiple Airlines
Deal found 8/14$212
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:15 amMCI - SAT
1 stop6h 25mSpirit Airlines
Fri 9/1912:45 pmSAT - MCI
1 stop10h 22mSpirit Airlines
Deal found 8/13$213
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:45 pmSTL - SAT
Nonstop2h 10mSouthwest
Wed 9/172:50 pmSAT - STL
1 stop6h 35mSouthwest
Deal found 8/13$213
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1012:10 pmMCI - SAT
Nonstop2h 00mSouthwest
Mon 9/1512:05 pmSAT - MCI
Nonstop1h 55mSouthwest
Deal found 8/14$217
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:25 amSTL - SAT
Nonstop2h 10mSouthwest
Mon 9/84:30 pmSAT - STL
Nonstop2h 10mSouthwest
Deal found 8/13$217

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 August 14, 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

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 10/24

8:38 pm-4:37 pm

1 stop19h 59m

San Antonio

Sun 10/26

5:45 pm-10:42 am

1 stop16h 57m

$160

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 11/7

11:02 am-4:40 pm

1 stop5h 38m

San Antonio

Mon 11/10

2:54 pm-9:07 am

1 stop18h 13m

$160

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 9/18

4:00 pm-4:30 pm

1 stop24h 30m

San Antonio

Sun 9/21

8:20 pm-9:06 am

1 stop12h 46m

$160

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 9/25

4:00 pm-4:30 pm

1 stop24h 30m

San Antonio

Sun 9/28

8:20 pm-9:06 am

1 stop12h 46m

$162

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sat 10/18

7:02 pm-7:41 pm

1 stop24h 39m

San Antonio

Fri 10/24

8:26 pm-5:55 pm

1 stop21h 29m

$171

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 9/10

7:55 pm-7:15 pm

1 stop23h 20m

San Antonio

Sun 9/14

9:55 am-9:06 am

1 stop23h 11m

$173

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 9/10

6:00 am-11:51 am

1 stop5h 51m

San Antonio

Wed 9/17

6:02 pm-11:09 pm

1 stop5h 07m

$199

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 9/10

7:16 am-2:05 pm

1 stop6h 49m

San Antonio

Wed 9/17

4:49 pm-11:07 pm

1 stop6h 18m

$199

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 9/26

3:01 pm-2:27 pm

1 stop23h 26m

San Antonio

Mon 9/29

12:45 pm-11:07 pm

1 stop10h 22m

$212

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 9/5

5:15 am-11:40 am

1 stop6h 25m

San Antonio

Fri 9/19

12:45 pm-11:07 pm

1 stop10h 22m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 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, August is the cheapest month in which you can book a flight from Missouri to San Antonio (average of $295). Flying from Missouri 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.

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 August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to San Antonio as you normally would.

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 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    $83 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Delta, with prices starting from $95 and $100, 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 $285, our data shows the cheapest flight currently is $108. When looking at the most popular route, (Lambert-St Louis - San Antonio), you can expect to pay $188 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, August is the cheapest month in which you can book a flight from Missouri to San Antonio (average of $295). Flying from Missouri 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

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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$124Average$303FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$128Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$189Average$385FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$375FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$209Average$296FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$217Average$370FlexibilityNo cancel feeOn-time69%

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