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San Antonio

$55+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
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 November 19, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$131
(Kiwi.com)

One-way from

$55
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$437

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. 15% potential increase in price ($61 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 19, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/37:43 pmSTL - SAT
1 stop18h 28mFrontier
Sun 12/77:56 pmSAT - STL
1 stop14h 18mFrontier
Deal found 11/18$180
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 stop23h 15mFrontier
Sun 12/145:46 pmSAT - STL
1 stop16h 06mFrontier
Deal found 11/19$182
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 stop23h 15mMultiple Airlines
Sat 12/133:10 pmSAT - STL
2 stops18h 37mMultiple Airlines
Deal found 11/17$197
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 10mFrontier
Wed 12/312:09 pmSAT - MCI
2 stops20h 49mFrontier
Deal found 11/18$212
This Priceline deal was found by Cheapflights users on 11/19. 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.
Fri 12/1212:07 pmSTL - SAT
1 stop8h 23mFrontier
Sun 12/212:01 pmSAT - STL
1 stop7h 24mFrontier
Deal found 11/19$224
This Kiwi.com deal was found by Cheapflights users on 11/19. 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
2 stops18h 32mMultiple Airlines
Sun 12/145:46 pmSAT - STL
1 stop16h 06mMultiple Airlines
Deal found 11/19$227
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 07mMultiple Airlines
Thu 12/185:10 amSAT - MCI
1 stop9h 42mMultiple Airlines
Deal found 11/18$228
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 12/412:04 pmSTL - SAT
1 stop28h 47mFrontier
Sun 12/77:56 pmSAT - STL
2 stops13h 56mFrontier
Deal found 11/18$236
This Priceline deal was found by Cheapflights users on 11/18. 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.
Fri 12/126:30 amMCI - SAT
1 stop10h 35mSpirit Airlines
Thu 12/185:10 amSAT - MCI
1 stop9h 42mSpirit Airlines
Deal found 11/18$240
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 12/1410:42 amSTL - SAT
1 stop6h 09mMultiple Airlines
Thu 12/185:10 amSAT - STL
1 stop11h 14mMultiple Airlines
Deal found 11/17$249
This American Airlines deal was found by Cheapflights users on 11/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:17 amSTL - SAT
1 stop10h 20mAmerican Airlines
Fri 1/26:00 pmSAT - STL
1 stop4h 56mAmerican Airlines
Deal found 11/17$252
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 12/158:45 pmMCI - SAT
2 stops22h 14mMultiple Airlines
Mon 12/222:01 pmSAT - MCI
1 stop24h 51mMultiple Airlines
Deal found 11/17$271

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 19, 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

Wed 1/21

7:00 am-1:11 pm

1 stop30h 11m

San Antonio

Thu 1/29

8:24 pm-7:46 pm

1 stop23h 22m

$162

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 1/14

4:28 pm-8:14 am

1 stop15h 46m

San Antonio

Fri 1/16

11:17 am-7:41 pm

1 stop8h 24m

$164

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 1/16

7:00 am-8:41 pm

1 stop13h 41m

San Antonio

Mon 1/19

11:17 am-7:41 pm

1 stop8h 24m

$201

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Mon 1/12

11:06 am-11:52 pm

2 stops12h 46m

San Antonio

Fri 1/16

11:17 am-7:41 pm

1 stop8h 24m

$208

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sun 12/14

11:58 am-11:08 am

1 stop23h 10m

San Antonio

Wed 12/31

2:09 pm-10:58 am

2 stops20h 49m

$212

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/8

4:28 pm-11:52 pm

1 stop7h 24m

San Antonio

Sun 1/11

6:30 am-3:33 pm

1 stop9h 03m

$219

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/15

7:00 am-7:58 pm

1 stop12h 58m

San Antonio

Sat 1/17

10:35 am-10:31 am

1 stop23h 56m

$222

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 1/14

4:28 pm-8:14 am

1 stop15h 46m

San Antonio

Sat 1/17

10:35 am-10:31 am

1 stop23h 56m

$225

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/29

4:28 pm-11:52 pm

1 stop7h 24m

San Antonio

Sat 1/31

6:30 am-3:33 pm

1 stop9h 03m

$256

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

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 51 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 19, 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.

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 United Airlines fly from Missouri to San Antonio in about 4h 36m. The time it takes to get you to your destination can typically vary by up to 18h 34m. Airlines will cover a distance of 786 mi. This flight may include one or multiple stops.

  • 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 $156 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

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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 19, 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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