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Cheap flights from Kansas City to San Antonio from $121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kansas City to San Antonio departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kansas City to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:08 pm - 10:51 pm
MCI
-
SAT
5h 43m
1 stop
United Airlines Logo
4:12 pm - 10:35 pm
SAT
-
MCI
6h 23m
1 stop
$241United Airlines
Sat, Aug 15 - Tue, Aug 18
Southwest Logo
4:55 pm - 6:55 pm
MCI
-
SAT
2h 00mnonstop
Southwest Logo
11:40 am - 1:40 pm
SAT
-
MCI
2h 00mnonstop
$243Southwest
Wed, Aug 5 - Wed, Aug 12
Frontier Logo
4:32 pm - 8:37 pm
MCI
-
SAT
28h 05m
1 stop
Frontier Logo
7:49 pm - 1:00 pm
SAT
-
MCI
17h 11m
1 stop
$244Frontier
Thu, Aug 6 - Mon, Aug 10
Southwest Logo
8:30 am - 4:25 pm
MCI
-
SAT
7h 55m
2 stops
Southwest Logo
11:30 am - 5:35 pm
SAT
-
MCI
6h 05m
1 stop
$246Southwest
Sat, Aug 15 - Tue, Aug 18
Southwest Logo
4:55 pm - 6:55 pm
MCI
-
SAT
2h 00mnonstop
Southwest Logo
7:35 am - 11:50 am
SAT
-
MCI
4h 15m
1 stop
$248Southwest
Wed, Aug 5 - Wed, Aug 12
Southwest Logo
8:30 am - 4:25 pm
MCI
-
SAT
7h 55m
2 stops
Southwest Logo
6:50 am - 1:30 pm
SAT
-
MCI
6h 40m
2 stops
$251Southwest
Sat, Aug 15 - Tue, Aug 18
Delta Logo
5:43 am - 1:38 pm
MCI
-
SAT
7h 55m
1 stop
Delta Logo
7:55 am - 4:13 pm
SAT
-
MCI
8h 18m
1 stop
$253Delta
Tue, Aug 4 - Tue, Aug 11
Frontier Logo
4:32 pm - 8:37 pm
MCI
-
SAT
28h 05m
1 stop
Frontier Logo
9:32 pm - 3:47 pm
SAT
-
MCI
18h 15m
1 stop
$254Frontier
Thu, Aug 6 - Thu, Aug 13
Southwest Logo
11:10 am - 5:25 pm
MCI
-
SAT
6h 15m
1 stop
Southwest Logo
6:50 am - 1:30 pm
SAT
-
MCI
6h 40m
2 stops
$258Southwest
Wed, Aug 5 - Wed, Aug 12
Southwest Logo
4:55 pm - 6:55 pm
MCI
-
SAT
2h 00mnonstop
Southwest Logo
12:05 pm - 2:00 pm
SAT
-
MCI
1h 55mnonstop
$259Southwest
Wed, Sep 23 - Fri, Sep 25

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Delta flights from Kansas City to San Antonio

Our best Delta deals on Kansas City to San Antonio flight tickets
Delta
Sep 23
MCI6:20 amKansas City
5h 19m
1 stop
SAT11:39 amSan Antonio
Sep 30
SAT5:30 amSan Antonio
7h 51m
1 stop
MCI1:21 pmKansas City
$253
Delta
Aug 6
MCI5:43 amKansas City
5h 27m
1 stop
SAT11:10 amSan Antonio
Aug 15
SAT6:25 amSan Antonio
8h 28m
1 stop
MCI2:53 pmKansas City
$273
Delta
Aug 3
MCI5:43 amKansas City
5h 27m
1 stop
SAT11:10 amSan Antonio
Aug 11
SAT5:20 amSan Antonio
5h 57m
1 stop
MCI11:17 amKansas City
$274

United Airlines flights from Kansas City to San Antonio

Our best United Airlines deals on Kansas City to San Antonio flight tickets
United Airlines
Nov 5
MCI8:30 amKansas City
4h 50m
1 stop
SAT1:20 pmSan Antonio
Nov 9
SAT4:19 pmSan Antonio
7h 19m
2 stops
MCI11:38 pmKansas City
$298
United Airlines
Jul 10
MCI6:00 amKansas City
6h 12m
1 stop
SAT12:12 pmSan Antonio
Jul 14
SAT6:40 amSan Antonio
7h 40m
1 stop
MCI2:20 pmKansas City
$374
United Airlines
Jul 7
MCI8:30 amKansas City
7h 09m
1 stop
SAT3:39 pmSan Antonio
Jul 11
SAT5:30 amSan Antonio
4h 33m
1 stop
MCI10:03 amKansas City
$415

momondo Fare Finder

 
Customize your flight search to find flights from Kansas City 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, momondo users made 832,500 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from Kansas City to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sat 8/15

5:08 pm-10:51 pm

1 stop5h 43m

San Antonio

Tue 8/18

4:12 pm-10:35 pm

1 stop6h 23m

$241

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 8/5

4:55 pm-6:55 pm

Nonstop2h 00m

San Antonio

Wed 8/12

11:40 am-1:40 pm

Nonstop2h 00m

$243

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 8/6

4:32 pm-8:37 pm

1 stop28h 05m

San Antonio

Mon 8/10

7:49 pm-1:00 pm

1 stop17h 11m

$244

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sat 8/15

8:30 am-4:25 pm

2 stops7h 55m

San Antonio

Tue 8/18

11:30 am-5:35 pm

1 stop6h 05m

$246

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 8/5

4:55 pm-6:55 pm

Nonstop2h 00m

San Antonio

Wed 8/12

7:35 am-11:50 am

1 stop4h 15m

$248

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sat 8/15

8:30 am-4:25 pm

2 stops7h 55m

San Antonio

Tue 8/18

6:50 am-1:30 pm

2 stops6h 40m

$251

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Tue 8/4

5:43 am-1:38 pm

1 stop7h 55m

San Antonio

Tue 8/11

7:55 am-4:13 pm

1 stop8h 18m

$253

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 8/6

4:32 pm-8:37 pm

1 stop28h 05m

San Antonio

Thu 8/13

9:32 pm-3:47 pm

1 stop18h 15m

$254

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 8/5

11:10 am-5:25 pm

1 stop6h 15m

San Antonio

Wed 8/12

6:50 am-1:30 pm

2 stops6h 40m

$258
Quickest round-trip

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 9/23

4:55 pm-6:55 pm

Nonstop2h 00m

San Antonio

Fri 9/25

12:05 pm-2:00 pm

Nonstop1h 55m

$259

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Antonio from

How to get the cheapest flight ticket from Kansas City 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

What is the typical price of a round-trip flight between Kansas City and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Kansas City during October instead. Flights to San Antonio in October, while not as cheap as those in August, still average around $326.

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 Tuesday when prices can be found for as low as $265. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $436.

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 morning. momondo users have found flights departing from Kansas City to San Antonio in the morning for as low as $265. 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 at noon, with an average ticket price of $391. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Kansas City to San Antonio flight route?

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

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

You are more likely to see cheaper flights to San Antonio from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $369 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Kansas City for as low as $255 on momondo.

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

There is only 1 cabin class available to choose from on Kansas City 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 Kansas City to San Antonio flights?

No. A direct flight is the cheapest option for a flight between Kansas City to San Antonio.

How have Kansas City to San Antonio flight prices changed over time?

As of June 2026, prices for Kansas City to San Antonio flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Kansas City to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Kansas City to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kansas City to San Antonio (MCI to SAT) flight deals and tips

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

Best Price Found

$226

Fastest flight time

2h 00m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Kansas City in the past 72 hours is $226. The best round-trip flight deal from Kansas City to San Antonio found on momondo in the last 72 hours is $309.
The fastest flight from Kansas City to San Antonio takes 2h 00m
Direct flights go from Kansas City to San Antonio on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is Southwest.
There is 1 airport in San Antonio. From Kansas City there are direct flights to San Antonio (SAT).
Search flight deals

Frequently asked questions about flying from Kansas City to San Antonio

  • How far is Kansas City to San Antonio by plane?

    Kansas City and San Antonio are 702.5 mi apart from one another. In terms of flight time, this usually takes a little over 2h 00m.

  • When did momondo last update prices for flights from Kansas City Airport to San Antonio Airport?

    Prices for flights from Kansas City Airport to San Antonio Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Kansas City Airport to San Antonio Airport?

  • How old do you have to be to fly from Kansas City Airport to San Antonio Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to San Antonio Airport.

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

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Kansas City to San Antonio?

  • What is the most popular airline from Kansas City to San Antonio?

Best airlines flying from Kansas City to San Antonio

Compare and see reviews for airlines that fly from Kansas City to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $207Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.1
11,777 reviews
Search American Airlines flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
9,896 reviews
Search United Airlines flights

  • Southwest Flights From Kansas City to San Antonio

    Southwest flies from Kansas City to San Antonio around 3 times per week, with 4,246 momondo users rating the airline 7.9/10. The cheapest Southwest deal from Kansas City to San Antonio in the last 72 hours was $207 (round-trip), much lower than the average airfare cost of $365 for Southwest flights on this route.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Pleasanton
Boerne
Schertz

Why use momondo?

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

Finding the right flight to San Antonio from Kansas City is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

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

All flight searches from Kansas City to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Kansas City 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 Kansas City.

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

Price alerts on flights to San Antonio from Kansas City are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Antonio trip

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