What is the cheapest airline that flies from Missouri to San Antonio?

Delta and United Airlines are the most popular carriers operating from Missouri to San Antonio

How many flights depart from Missouri to San Antonio on average per week?

11 flights are operational weekly from Missouri to San Antonio as of February 2026. The most popular departure day for this route is Mon, with 27% of flights per week taking off on this day.

What airlines fly to San Antonio?

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to San Antonio from Missouri according to our data. Southwest is the first choice among our users, with 61% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 5 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

How many flights depart from Missouri to San Antonio on average per day?

1 flights are operational daily from Missouri to San Antonio as of February 2026. The most popular departure time for this route is 6:00AM, with 71% of flights per day taking off at noon.

How long does it take to fly to San Antonio?

Flight times vary depending on what airport in Missouri you fly out of and what airport in San Antonio you fly into. For example, flying from Kansas City to Austin takes 1h 50m on average. On the other hand, flying from St. Louis to Austin takes 2h on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Missouri to San Antonio Airport?

Prices for flights from Missouri to San Antonio Airport refresh daily.

How many operators does momondo search for flights from Missouri to San Antonio Airport?

There are 5 operators available for flights from Missouri to San Antonio Airport as of February 2026.

How old do you have to be to fly from Missouri to San Antonio Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$80 Cheap Flights from Missouri to San Antonio in 2026

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Find the cheapest flights from Missouri to San Antonio

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:07 pm - 7:30 pm

STL

SAT

7h 23m

1 stop

2:59 pm - 7:32 pm

SAT

STL

28h 33m

1 stop

$160Frontier

Fri, May 1 - Sun, May 3

8:43 pm - 12:19 am

MCI

SAT

27h 36m

1 stop

6:45 am - 7:58 pm

SAT

MCI

13h 13m

1 stop

$171Frontier

Tue, Apr 7 - Sat, Apr 11

6:30 am - 10:50 am

MCI

SAT

4h 20m

1 stop

5:34 pm - 11:16 pm

SAT

MCI

5h 42m

1 stop

$201United Airlines

Wed, Apr 29 - Wed, May 6

6:00 am - 1:08 pm

MCI

SAT

7h 08m

2 stops

6:02 pm - 10:30 pm

SAT

MCI

4h 28m

1 stop

$206United Airlines

Wed, Apr 8 - Wed, Apr 8

11:27 am - 12:27 pm

STL

SAT

25h 00m

2 stops

6:45 am - 9:48 am

SAT

STL

27h 03m

1 stop

$209Multiple Airlines

Tue, Mar 24 - Tue, Mar 31

5:40 am - 12:59 pm

MCI

SAT

7h 19m

1 stop

5:00 pm - 11:50 pm

SAT

MCI

6h 50m

1 stop

$223Delta

Fri, May 1 - Wed, May 6

8:40 pm - 9:06 am

MCI

SAT

12h 26m

1 stop

1:22 pm - 11:53 pm

SAT

MCI

10h 31m

1 stop

$246Multiple Airlines

Fri, Mar 27 - Tue, Mar 31

3:22 pm - 10:31 pm

SGF

SAT

7h 09m

1 stop

5:30 pm - 10:35 pm

SAT

SGF

5h 05m

1 stop

$249Delta

Thu, Jun 4 - Tue, Jun 9

5:31 pm - 11:55 pm

SGF

SAT

6h 24m

1 stop

5:00 am - 10:09 am

SAT

SGF

5h 09m

1 stop

$279American Airlines

Tue, Mar 10 - Sat, Mar 14

10:54 am - 2:21 pm

SGF

SAT

3h 27m

1 stop

3:11 pm - 8:46 pm

SAT

SGF

5h 35m

1 stop

$294American Airlines

Sat, May 9 - Sat, May 16

United Airlines flights from Missouri to San Antonio

Our best United Airlines deals on Missouri to San Antonio flight tickets

United Airlines

Apr 29

MCI6:30 amKansas City

4h 20m

1 stop

SAT10:50 amSan Antonio

May 6

SAT5:34 pmSan Antonio

5h 42m

1 stop

MCI11:16 pmKansas City

$201

United Airlines

Apr 8

MCI6:00 amKansas City

7h 08m

2 stops

SAT1:08 pmSan Antonio

Apr 8

SAT6:02 pmSan Antonio

4h 28m

1 stop

MCI10:30 pmKansas City

$206

United Airlines

Apr 7

STL10:09 amLambert-St Louis

7h 34m

1 stop

SAT5:43 pmSan Antonio

Apr 11

SAT4:17 pmSan Antonio

6h 11m

1 stop

STL10:28 pmLambert-St Louis

$212

Delta flights from Missouri to San Antonio

Our best Delta deals on Missouri to San Antonio flight tickets

Delta

May 1

MCI5:40 amKansas City

7h 19m

1 stop

SAT12:59 pmSan Antonio

May 6

SAT5:00 pmSan Antonio

6h 50m

1 stop

MCI11:50 pmKansas City

$223

Delta

Jun 4

SGF3:22 pmSpringfield-Branson

7h 09m

1 stop

SAT10:31 pmSan Antonio

Jun 9

SAT5:30 pmSan Antonio

5h 05m

1 stop

SGF10:35 pmSpringfield-Branson

$249

Delta

Apr 17

MCI5:12 pmKansas City

7h 34m

1 stop

SAT12:46 amSan Antonio

Apr 19

SAT5:20 amSan Antonio

6h 00m

1 stop

MCI11:20 amKansas City

$256

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Fri 5/1

12:07 pm-7:30 pm

1 stop7h 23m

San Antonio

Sun 5/3

2:59 pm-7:32 pm

1 stop28h 33m

$160

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 4/7

8:43 pm-12:19 am

1 stop27h 36m

San Antonio

Sat 4/11

6:45 am-7:58 pm

1 stop13h 13m

$171

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 4/29

6:30 am-10:50 am

1 stop4h 20m

San Antonio

Wed 5/6

5:34 pm-11:16 pm

1 stop5h 42m

$201

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 4/8

6:00 am-1:08 pm

2 stops7h 08m

San Antonio

Wed 4/8

6:02 pm-10:30 pm

1 stop4h 28m

$206

St. LouisSan Antonio

STL - SAT

STLSAT

Lambert-St Louis

Tue 3/24

11:27 am-12:27 pm

2 stops25h 00m

San Antonio

Tue 3/31

6:45 am-9:48 am

1 stop27h 03m

$209

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 5/1

5:40 am-12:59 pm

1 stop7h 19m

San Antonio

Wed 5/6

5:00 pm-11:50 pm

1 stop6h 50m

$223

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 3/27

8:40 pm-9:06 am

1 stop12h 26m

San Antonio

Tue 3/31

1:22 pm-11:53 pm

1 stop10h 31m

$246

SpringfieldSan Antonio

SGF - SAT

SGFSAT

Springfield-Branson

Thu 6/4

3:22 pm-10:31 pm

1 stop7h 09m

San Antonio

Tue 6/9

5:30 pm-10:35 pm

1 stop5h 05m

$249

SpringfieldSan Antonio

SGF - SAT

SGFSAT

Springfield-Branson

Tue 3/10

5:31 pm-11:55 pm

1 stop6h 24m

San Antonio

Sat 3/14

5:00 am-10:09 am

1 stop5h 09m

$279

SpringfieldSan Antonio

SGF - SAT

SGFSAT

Springfield-Branson

Sat 5/9

10:54 am-2:21 pm

1 stop3h 27m

San Antonio

Sat 5/16

3:11 pm-8:46 pm

1 stop5h 35m

$294

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How to get the cheapest flight ticket from Missouri to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of April, then book flights to San Antonio from Missouri during August instead. Flights to San Antonio in August, while not as cheap as those in April, still average around $308.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Saturday when prices can be found for as low as $329. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Wednesday is $472.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from Missouri to San Antonio in the afternoon for as low as $362. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the evening, with an average ticket price of $430. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Missouri to San Antonio flight route?

Fly from Kansas City to San Antonio for the best Missouri - San Antonio flight prices

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $337 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Missouri for as low as $228 on momondo.

What cabin class options are available on Missouri to San Antonio flights?

There is only 1 cabin class available to choose from on Missouri to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to San Antonio flights?

You could potentially save up to 9% on your flight if you consider stops on a Missouri to San Antonio flight.

Cheap Missouri to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to San Antonio

Best Price Found	$183
Fastest flight time	2h 00m
Direct flights	Every day
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from Missouri in the past 72 hours is $183. The best round-trip flight deal from Missouri to San Antonio found on momondo in the last 72 hours is $336.

The fastest flight from Missouri to San Antonio takes 2h 00m

Direct flights go from Missouri to San Antonio every day.

There is 1 airport in San Antonio. From Missouri there are direct flights to San Antonio (SAT).

Search flight deals

When did momondo last update prices for flights from Missouri to San Antonio Airport?
Prices for flights from Missouri to San Antonio Airport refresh daily.
How many operators does momondo search for flights from Missouri to San Antonio Airport?
There are 5 operators available for flights from Missouri to San Antonio Airport as of February 2026.
How old do you have to be to fly from Missouri to San Antonio Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Missouri to San Antonio?
momondo data reveals that the most frequently booked plane model on the route from Missouri to San Antonio is Boeing 737 MAX 8, representing 40.91% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 19.70%, Embraer 175 at 9.09%, and Airbus A320-100/200 at 7.58%.

Best airlines flying from Missouri to San Antonio

Compare and see reviews for airlines that fly from Missouri to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $124	Free Cancellation	Rating 7.9 8,237 reviews	Search Delta flights
Frontier	PriceFrom $151	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.1 11,345 reviews	Search American Airlines flights
Southwest	PriceFrom $207	Free Cancellation	Rating 8.0 4,300 reviews	Search Southwest flights
United Airlines	PriceFrom $222	Free Cancellation	Rating 7.4 9,345 reviews	Search United Airlines flights

New Braunfels

Kerrville

Boerne

Pleasanton

Schertz

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to San Antonio. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to San Antonio with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Antonio from Missouri with this policy.

How can momondo help me find flights from Missouri to San Antonio?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from Missouri.

I’m not ready to book a flight from Missouri to San Antonio right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Antonio from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Missouri to San Antonio from $80

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to San Antonio departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Missouri to San Antonio

What is the cheapest month to fly to San Antonio?

What is the cheapest day to depart on your flight to San Antonio?

What is the cheapest time of day to depart on your flight to San Antonio?

What is the cheapest Missouri to San Antonio flight route?

How far in advance should I book a flight to San Antonio?

What cabin class options are available on Missouri to San Antonio flights?

Can stopping save me money on Missouri to San Antonio flights?

What is the cheapest airline that flies from Missouri to San Antonio?

What airlines fly to San Antonio?

How many flights depart from Missouri to San Antonio on average per day?

How many flights depart from Missouri to San Antonio on average per week?

How long does it take to fly to San Antonio?

Cheap Missouri to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to San Antonio

Best Price Found

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Direct flights

Airports in San Antonio

Best airlines flying from Missouri to San Antonio

Compare and see reviews for airlines that fly from Missouri to San Antonio with momondo

Traveling to a place near San Antonio?

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to San Antonio?

Can I find flights from Missouri to San Antonio with flexible booking policies on momondo?

How can momondo help me find flights from Missouri to San Antonio?

I’m not ready to book a flight from Missouri to San Antonio right now. Can momondo alert me if prices change?

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to San Antonio

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to San Antonio

List of cabin classes available on flights landing in San Antonio. Availability may vary depending on flight origin and airline.

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