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$78+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$157
(Booking.com)

One-way from

$78
(Southwest)

Popular in

November

Cheapest in

August

Average price

$347

Good round-trip deal

$265 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. 7% potential increase in price ($31 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 September 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 September 11, 2025.

This Booking.com deal was found by Cheapflights users on 9/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:45 pmSTL - SAT
1 stop23h 45mFrontier
Mon 11/108:25 pmSAT - STL
1 stop12h 42mFrontier
Deal found 9/8$164
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/217:52 pmSTL - SAT
1 stop19h 22mFrontier
Thu 10/238:26 pmSAT - STL
1 stop12h 41mFrontier
Deal found 9/10$167
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 10/207:52 pmSTL - SAT
1 stop19h 22mFrontier
Thu 10/238:26 pmSAT - STL
1 stop12h 41mFrontier
Deal found 9/8$177
This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:01 pmMCI - SAT
1 stop23h 26mFrontier
Sun 9/288:20 pmSAT - MCI
1 stop17h 28mFrontier
Deal found 9/10$183
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:30 pmSTL - SAT
1 stop5h 05mSouthwest
Wed 10/1512:45 pmSAT - STL
1 stop6h 20mSouthwest
Deal found 9/10$185
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/157:52 pmSTL - SAT
1 stop23h 49mFrontier
Mon 10/2010:54 amSAT - STL
1 stop8h 32mFrontier
Deal found 9/8$186
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/157:52 pmSTL - SAT
1 stop23h 49mFrontier
Sun 10/199:52 pmSAT - STL
1 stop13h 51mFrontier
Deal found 9/8$192
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/147:45 pmSTL - SAT
1 stop18h 32mMultiple Airlines
Tue 11/186:23 pmSAT - STL
2 stops14h 44mMultiple Airlines
Deal found 9/10$193
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:57 amSTL - SAT
1 stop7h 33mMultiple Airlines
Mon 10/2710:54 amSAT - STL
1 stop8h 32mMultiple Airlines
Deal found 9/10$195
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amSTL - SAT
1 stop6h 10mDelta
Mon 12/86:10 pmSAT - STL
1 stop5h 18mDelta
Deal found 9/11$197
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 11/912:10 pmSTL - SAT
2 stops23h 02mMultiple Airlines
Sat 11/153:12 pmSAT - STL
1 stop17h 55mMultiple Airlines
Deal found 9/10$198
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:22 pmSTL - SAT
2 stops19h 45mMultiple Airlines
Sun 11/168:25 pmSAT - STL
1 stop12h 42mMultiple Airlines
Deal found 9/9$199

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 September 11, 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

Sat 11/1

9:00 am-5:16 pm

1 stop8h 16m

San Antonio

Wed 11/5

10:54 am-4:44 pm

1 stop5h 50m

$203

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 10/8

4:39 pm-12:20 am

1 stop7h 41m

San Antonio

Wed 10/15

5:14 am-11:31 am

1 stop6h 17m

$209

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 10/24

6:52 pm-12:20 am

1 stop5h 28m

San Antonio

Mon 10/27

5:09 pm-11:41 pm

1 stop6h 32m

$215

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 11/14

6:00 am-1:41 pm

1 stop7h 41m

San Antonio

Tue 11/18

3:00 pm-9:58 pm

1 stop6h 58m

$215

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 11/11

3:30 pm-9:50 pm

2 stops6h 20m

San Antonio

Thu 11/13

8:40 pm-12:15 am

1 stop3h 35m

$219

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 10/24

4:39 pm-11:07 pm

1 stop6h 28m

San Antonio

Sat 11/1

5:15 pm-11:52 pm

1 stop6h 37m

$220

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 9/30

4:06 pm-11:59 pm

1 stop7h 53m

San Antonio

Fri 10/3

3:25 pm-10:23 pm

1 stop6h 58m

$226

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 10/24

5:39 pm-11:07 pm

1 stop5h 28m

San Antonio

Wed 10/29

5:14 am-11:31 am

1 stop6h 17m

$226

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 10/1

6:30 am-11:50 am

1 stop5h 20m

San Antonio

Fri 10/3

6:02 pm-11:05 pm

1 stop5h 03m

$226

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 11/13

11:44 am-5:17 pm

1 stop5h 33m

San Antonio

Sun 11/16

6:22 pm-11:40 pm

1 stop5h 18m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 55 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 September 11, 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 6 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 Delta, Southwest, and American Airlines fly from Missouri to San Antonio in about 3h 50m. The time it takes to get you to your destination can typically vary by up to 4h 26m. Airlines will cover a distance of 608 mi. This flight may include one or multiple stops.

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

    $78 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $85 and $99, respectively.

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

    While some choose either Lambert-St Louis - San Antonio or Springfield-Branson - San Antonio, Kansas City - 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 $307, our data shows the cheapest flight currently is $213. When looking at the most popular route, (Kansas City - San Antonio), you can expect to pay $195 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$124Average$303FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$128Average$217FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$200Average$376FlexibilityNo cancel feeOn-time63%
Spirit AirlinesCheapest$209Average$296FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$212Average$357FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$389FlexibilityNo cancel feeOn-time71%

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