HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$63+ 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Dec 9 — Dec 161
Tue 12/9
Tue 12/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missouri to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 9, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$127
(Frontier)

One-way from

$63
(Trip.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.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-San Antonio flights.
Search Deals
From Missouri to San Antonio
Search Deals
One-way flight from Missouri to San Antonio
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Missouri to San Antonio.
Search Deals

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 9, 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 Frontier deal was found by Cheapflights users on 11/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:24 amSTL - SAT
1 stop8h 20mFrontier
Thu 11/272:08 pmSAT - STL
1 stop7h 01mFrontier
Deal found 11/8$144
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 11/209:54 pmSTL - SAT
1 stop12h 50mFrontier
Sun 11/2311:05 amSAT - STL
1 stop7h 53mFrontier
Deal found 11/9$167
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/107:43 pmSTL - SAT
1 stop18h 28mFrontier
Sun 12/145:46 pmSAT - STL
1 stop16h 06mFrontier
Deal found 11/8$186
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/711:58 amMCI - SAT
1 stop23h 10mFrontier
Sun 12/145:46 pmSAT - MCI
1 stop18h 05mFrontier
Deal found 11/9$195
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 11/238:28 pmMCI - SAT
1 stop13h 42mFrontier
Wed 11/266:22 pmSAT - MCI
1 stop15h 09mFrontier
Deal found 11/7$197
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:16 pmSTL - SAT
2 stops31h 14mFrontier
Sun 12/75:46 pmSAT - STL
1 stop16h 06mFrontier
Deal found 11/9$203
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:45 pmMCI - SAT
1 stop16h 29mFrontier
Mon 12/296:45 amSAT - MCI
1 stop13h 05mFrontier
Deal found 11/9$206
This Kiwi.com 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 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 stop28h 37mMultiple Airlines
Sun 11/238:33 pmSAT - STL
1 stop27h 24mMultiple Airlines
Deal found 11/9$213
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:43 pmSTL - SAT
1 stop28h 37mFrontier
Tue 12/27:00 amSAT - STL
1 stop27h 14mFrontier
Deal found 11/9$214
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:28 pmMCI - SAT
1 stop13h 42mFrontier
Fri 11/287:00 amSAT - MCI
1 stop12h 33mFrontier
Deal found 11/9$215
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:30 amMCI - SAT
1 stop10h 35mMultiple Airlines
Wed 12/246:45 amSAT - MCI
1 stop13h 05mMultiple Airlines
Deal found 11/9$224

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 9, 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

Sun 11/23

10:24 am-6:44 pm

1 stop8h 20m

San Antonio

Thu 11/27

2:08 pm-9:09 pm

1 stop7h 01m

$144

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sun 12/7

11:58 am-11:08 am

1 stop23h 10m

San Antonio

Sun 12/14

5:46 pm-11:51 am

1 stop18h 05m

$195

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 1/9

4:28 pm-12:07 am

1 stop7h 39m

San Antonio

Mon 1/12

7:34 pm-3:33 pm

1 stop19h 59m

$212

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 11/21

7:43 pm-12:20 am

1 stop28h 37m

San Antonio

Sun 11/23

8:33 pm-11:57 pm

1 stop27h 24m

$213

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Mon 11/24

8:28 pm-10:10 am

1 stop13h 42m

San Antonio

Fri 11/28

7:00 am-7:33 pm

1 stop12h 33m

$215

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sun 11/23

6:56 pm-1:05 pm

2 stops18h 09m

San Antonio

Wed 11/26

6:22 pm-9:31 am

1 stop15h 09m

$217

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/22

4:28 pm-12:07 am

1 stop7h 39m

San Antonio

Sun 1/25

6:30 am-3:33 pm

1 stop9h 03m

$223

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 1/9

4:28 pm-12:07 am

1 stop7h 39m

San Antonio

Sun 1/11

6:30 am-3:33 pm

1 stop9h 03m

$223

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Thu 11/27

7:57 pm-11:59 am

1 stop16h 02m

San Antonio

Wed 12/3

7:37 pm-1:52 pm

1 stop18h 15m

$232

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 1/7

6:15 pm-9:30 am

1 stop15h 15m

San Antonio

Sat 1/10

10:26 am-10:31 am

1 stop24h 05m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 54 results
1
2
3
...
6

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 9, 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, Spirit Airlines, and United Airlines fly from Missouri to San Antonio in about 4h 47m. The time it takes to get you to your destination can typically vary by up to 3h 33m. 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?

    $85 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 United Airlines, with prices starting from $109 and $109, 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 $158 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Missouri to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
Newark to Hobby flights
LaGuardia to Hobby flights
Seattle to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
O'Hare Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Austin flights
Minneapolis to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Newark to George Bush Intcntl flights
Ontario to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
John F Kennedy Intl to George Bush Intcntl flights
Boston to Dallas/Fort Worth flights
Newark to Austin flights
Orlando to Dallas/Fort Worth flights
Atlanta to Dallas/Fort Worth flights
LaGuardia to George Bush Intcntl flights
Dulles Intl to Hobby flights
Santa Ana to Dallas/Fort Worth flights
Seattle to Hobby flights
Philadelphia to Dallas/Fort Worth flights
Los Angeles to Hobby flights
Denver to Dallas/Fort Worth flights
Midway to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Reagan-National to Hobby flights
Detroit to Dallas/Fort Worth flights
Los Angeles to Austin flights
Wichita to Hobby flights
Dulles Intl to George Bush Intcntl flights
Wichita to George Bush Intcntl flights
Salt Lake City to Dallas/Fort Worth flights
Los Angeles to George Bush Intcntl flights
Baltimore to Hobby flights
Seattle to George Bush Intcntl flights
Fort Lauderdale to Dallas/Fort Worth flights
Denver to Hobby flights
LaGuardia to Austin flights
Boston to Hobby flights
Cleveland to Dallas/Fort Worth flights
Sky Harbor Intl to Dallas/Fort Worth flights
Charlotte to Dallas/Fort Worth flights
Atlanta to Hobby flights
Boston to Austin flights
San Francisco to Hobby flights

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 9, 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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.