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$62+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAT
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap 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 December 3, 2025.

This Mytrip deal was found by Cheapflights users on 12/1. 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.
Tue 12/238:45 pmMCI - SAT
1 stop27h 32mFrontier
Sun 12/286:45 amSAT - MCI
1 stop13h 06mFrontier
Deal found 12/1$217
This Delta deal was found by Cheapflights users on 12/1. 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 12/315:13 pmSTL - SAT
1 stop7h 06mDelta
Wed 1/75:20 amSAT - STL
1 stop5h 45mDelta
Deal found 12/1$218
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Fri 12/1210:42 amSTL - SAT
1 stop6h 09mFrontier
Sun 12/148:50 amSAT - STL
1 stop24h 09mFrontier
Deal found 12/1$221
This Expedia deal was found by Cheapflights users on 12/1. 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.
Wed 12/176:30 amMCI - SAT
1 stop10h 35mMultiple Airlines
Sun 12/216:45 amSAT - MCI
1 stop13h 06mMultiple Airlines
Deal found 12/1$224
This Priceline deal was found by Cheapflights users on 12/1. 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 35mMultiple Airlines
Mon 1/512:18 pmSAT - MCI
1 stop7h 32mMultiple Airlines
Deal found 12/1$229
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Tue 12/304:27 pmSTL - SAT
1 stop25h 49mFrontier
Tue 1/66:45 amSAT - STL
1 stop27h 17mFrontier
Deal found 12/1$242
This Mytrip deal was found by Cheapflights users on 11/30. 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 12/48:09 pmMCI - SAT
1 stop22h 51mFrontier
Sun 12/77:56 pmSAT - MCI
1 stop23h 54mFrontier
Deal found 11/30$247
This American Airlines deal was found by Cheapflights users on 12/1. 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.
Wed 12/247:06 amSGF - SAT
1 stop4h 56mAmerican Airlines
Mon 12/295:00 amSAT - SGF
1 stop6h 37mAmerican Airlines
Deal found 12/1$249
This Booking.com deal was found by Cheapflights users on 12/2. 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 12/185:19 pmSTL - SAT
1 stop19h 57mFrontier
Mon 12/227:11 pmSAT - STL
1 stop27h 22mFrontier
Deal found 12/2$251
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/3010:48 amSTL - SAT
2 stops36h 38mMultiple Airlines
Tue 1/63:55 pmSAT - STL
1 stop18h 07mMultiple Airlines
Deal found 12/1$259
This Priceline deal was found by Cheapflights users on 12/1. 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 35mMultiple Airlines
Sun 12/1410:25 amSAT - MCI
1 stop9h 25mMultiple Airlines
Deal found 12/1$265
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Mon 12/228:45 pmMCI - SAT
1 stop14h 36mFrontier
Sat 1/36:45 amSAT - MCI
1 stop13h 06mFrontier
Deal found 12/1$267

Find 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 December 3, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$137
(Mytrip)

One-way from

$62
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$377

Good round-trip deal

$414 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. 15% potential increase in price ($60 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 December 2025
Search Deals
Price to beat on a round-trip flight from Missouri to San Antonio.
Search Deals

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 December 3, 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

Sat 1/24

3:46 pm-7:29 pm

1 stop27h 43m

San Antonio

Tue 2/3

6:30 am-11:33 pm

1 stop17h 03m

$164

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 2/25

6:00 am-10:47 am

1 stop4h 47m

San Antonio

Thu 2/26

2:10 pm-9:00 pm

1 stop6h 50m

$172

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 2/25

10:15 am-4:05 pm

2 stops5h 50m

San Antonio

Thu 2/26

5:15 pm-11:30 pm

1 stop6h 15m

$188

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/15

8:33 pm-10:22 am

1 stop13h 49m

San Antonio

Sun 1/18

10:15 am-7:42 pm

1 stop9h 27m

$192

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 2/10

6:00 am-10:47 am

1 stop4h 47m

San Antonio

Fri 2/13

2:10 pm-9:00 pm

1 stop6h 50m

$193

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Mon 2/9

9:45 pm-3:14 pm

2 stops17h 29m

San Antonio

Fri 2/13

10:13 am-10:02 am

1 stop23h 49m

$199

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 2/3

5:04 pm-11:52 pm

1 stop6h 48m

San Antonio

Thu 2/5

8:24 pm-7:51 pm

1 stop23h 27m

$203

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Wed 1/28

5:50 pm-11:05 pm

1 stop5h 15m

San Antonio

Fri 1/30

2:10 pm-9:00 pm

1 stop6h 50m

$205

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 12/23

8:45 pm-12:17 am

1 stop27h 32m

San Antonio

Sun 12/28

6:45 am-7:51 pm

1 stop13h 06m

$217

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 1/8

5:04 pm-11:52 pm

1 stop6h 48m

San Antonio

Sun 1/11

6:30 am-4:09 pm

1 stop9h 39m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 56 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 December 3, 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 33% 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.

Weekly flight availability from Missouri to San Antonio

Explore weekly flight availability from Missouri to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 3, 2025.

The most flights from USMO to SAT are scheduled on a Monday (3 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 United Airlines, Southwest, and Frontier 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 9h 02m. 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 $470, our data shows the cheapest flight currently is $335. When looking at the most popular route, (Lambert-St Louis - San Antonio), you can expect to pay $153 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 5 airlines flying from Missouri to San Antonio

Discover the top 5 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 December 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$124Average$263FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$151Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$380FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$371FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$228Average$348FlexibilityNo cancel feeOn-time69%

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