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Cheap flights from Kansas City to San Antonio from $71

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 2/9. 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
0 bags

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Find the cheapest flights from Kansas City to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:39 pm - 7:30 pm
MCI
-
SAT
26h 51m
1 stop
Frontier Logo
7:56 pm - 12:59 pm
SAT
-
MCI
17h 03m
1 stop
$148Frontier
Wed, Feb 18 - Sat, Feb 21
Multiple Airlines Logo
8:41 pm - 4:17 pm
MCI
-
SAT
19h 36m
1 stop
Multiple Airlines Logo
9:39 pm - 11:33 pm
SAT
-
MCI
25h 54m
1 stop
$180Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Frontier Logo
11:00 am - 5:03 pm
MCI
-
SAT
6h 03m
1 stop
Frontier Logo
5:12 pm - 3:44 pm
SAT
-
MCI
22h 32m
1 stop
$181Frontier
Sun, Feb 1 - Tue, Feb 10
Frontier Logo
8:43 pm - 7:33 pm
MCI
-
SAT
22h 50m
1 stop
Frontier Logo
8:24 pm - 7:51 pm
SAT
-
MCI
23h 27m
1 stop
$182Frontier
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
11:00 am - 5:03 pm
MCI
-
SAT
6h 03m
1 stop
Frontier Logo
8:24 pm - 7:51 pm
SAT
-
MCI
23h 27m
1 stop
$201Frontier
Sun, Feb 1 - Thu, Feb 5
Multiple Airlines Logo
6:13 pm - 7:01 pm
MCI
-
SAT
24h 48m
1 stop
Multiple Airlines Logo
9:39 pm - 11:33 pm
SAT
-
MCI
25h 54m
1 stop
$202Multiple Airlines
Fri, Feb 13 - Mon, Feb 16
Multiple Airlines Logo
6:13 pm - 7:01 pm
MCI
-
SAT
24h 48m
1 stop
Multiple Airlines Logo
9:39 pm - 11:33 pm
SAT
-
MCI
25h 54m
1 stop
$205Multiple Airlines
Fri, Feb 13 - Mon, Feb 16
Multiple Airlines Logo
8:43 pm - 7:33 pm
MCI
-
SAT
22h 50m
1 stop
Multiple Airlines Logo
9:41 pm - 11:33 pm
SAT
-
MCI
25h 52m
1 stop
$206Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
4:39 pm - 1:12 pm
MCI
-
SAT
20h 33m
2 stops
Frontier Logo
7:56 pm - 12:59 pm
SAT
-
MCI
17h 03m
1 stop
$214Frontier
Wed, Feb 18 - Sat, Feb 21
Multiple Airlines Logo
8:28 pm - 1:12 pm
MCI
-
SAT
16h 44m
2 stops
Multiple Airlines Logo
9:39 pm - 11:33 pm
SAT
-
MCI
25h 54m
1 stop
$216Multiple Airlines
Thu, Feb 19 - Mon, Feb 23

United Airlines flights from Kansas City to San Antonio

Our best United Airlines deals on Kansas City to San Antonio flight tickets
United Airlines
Apr 7
MCI6:16 amKansas City
4h 34m
1 stop
SAT10:50 amSan Antonio
Apr 14
SAT7:40 amSan Antonio
8h 36m
2 stops
MCI4:16 pmKansas City
$314
United Airlines
Mar 17
MCI1:56 pmKansas City
9h 01m
2 stops
SAT10:57 pmSan Antonio
Mar 20
SAT5:00 amSan Antonio
4h 30m
1 stop
MCI9:30 amKansas City
$342
United Airlines
Jan 16
MCI10:30 amKansas City
5h 01m
1 stop
SAT3:31 pmSan Antonio
Jan 21
SAT7:40 amSan Antonio
8h 28m
2 stops
MCI4:08 pmKansas City
$418

Frontier flights from Kansas City to San Antonio

Our best Frontier deals on Kansas City to San Antonio flight tickets
Frontier
Feb 18
MCI4:39 pmKansas City
26h 51m
1 stop
SAT7:30 pmSan Antonio
Feb 21
SAT7:56 pmSan Antonio
17h 03m
1 stop
MCI12:59 pmKansas City
$148
Frontier
Feb 1
MCI11:00 amKansas City
6h 03m
1 stop
SAT5:03 pmSan Antonio
Feb 10
SAT5:12 pmSan Antonio
22h 32m
1 stop
MCI3:44 pmKansas City
$181
Frontier
Feb 5
MCI8:43 pmKansas City
22h 50m
1 stop
SAT7:33 pmSan Antonio
Feb 8
SAT8:24 pmSan Antonio
23h 27m
1 stop
MCI7:51 pmKansas City
$182

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 January 12, 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

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 2/18

4:39 pm-7:30 pm

1 stop26h 51m

San Antonio

Sat 2/21

7:56 pm-12:59 pm

1 stop17h 03m

$148

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Mon 2/9

8:41 pm-4:17 pm

1 stop19h 36m

San Antonio

Mon 2/16

9:39 pm-11:33 pm

1 stop25h 54m

$180

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sun 2/1

11:00 am-5:03 pm

1 stop6h 03m

San Antonio

Tue 2/10

5:12 pm-3:44 pm

1 stop22h 32m

$181

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 2/5

8:43 pm-7:33 pm

1 stop22h 50m

San Antonio

Sun 2/8

8:24 pm-7:51 pm

1 stop23h 27m

$182

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Sun 2/1

11:00 am-5:03 pm

1 stop6h 03m

San Antonio

Thu 2/5

8:24 pm-7:51 pm

1 stop23h 27m

$201

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 2/13

6:13 pm-7:01 pm

1 stop24h 48m

San Antonio

Mon 2/16

9:39 pm-11:33 pm

1 stop25h 54m

$202

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Fri 2/13

6:13 pm-7:01 pm

1 stop24h 48m

San Antonio

Mon 2/16

9:39 pm-11:33 pm

1 stop25h 54m

$205

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 2/5

8:43 pm-7:33 pm

1 stop22h 50m

San Antonio

Mon 2/9

9:41 pm-11:33 pm

1 stop25h 52m

$206

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Wed 2/18

4:39 pm-1:12 pm

2 stops20h 33m

San Antonio

Sat 2/21

7:56 pm-12:59 pm

1 stop17h 03m

$214

Kansas CitySan Antonio

MCI - SAT

MCISAT

Kansas City

Thu 2/19

8:28 pm-1:12 pm

2 stops16h 44m

San Antonio

Mon 2/23

9:39 pm-11:33 pm

1 stop25h 54m

$216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $274. 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 Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $416.

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 $274. 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 afternoon, with an average ticket price of $382. Departure times in the afternoon 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 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 $357 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 $272 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.

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

As of January 2026, prices for Kansas City to San Antonio flights are approximately 43% 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

$391

Fastest flight time

2h 00m

Direct flights

Every day

Airports in San Antonio

1 airport
The best flight deal from Kansas City to San Antonio found on momondo in the last 72 hours is $391
The fastest flight from Kansas City to San Antonio takes 2h 00m
Direct flights go from Kansas City to San Antonio every day.
There is 1 airport in San Antonio. From Kansas City there are direct flights to San Antonio (SAT).
Search flight deals

  • 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 $223Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
American AirlinesPriceFrom $266Free CancellationRating
7.2
11,114 reviews
Search American Airlines flights

  • Southwest Flights From Kansas City to San Antonio

    Southwest flies from Kansas City to San Antonio around 3 times per week, with 4,253 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Kansas City to San Antonio in the last 72 hours was $223 (round-trip), much lower than the average airfare cost of $357 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
Boerne
Schertz
Pleasanton

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.

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