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Cheap flights from Louisville to San Antonio from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville 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 Louisville to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
7:10 pm - 11:15 pm
SDF
-
SAT
5h 05m
1 stop
Southwest Logo
2:55 pm - 10:35 pm
SAT
-
SDF
6h 40m
1 stop
$271Southwest
Thu, Sep 3 - Mon, Sep 7
Southwest Logo
8:45 am - 4:50 pm
SDF
-
SAT
9h 05m
2 stops
Southwest Logo
2:35 pm - 9:30 pm
SAT
-
SDF
5h 55m
1 stop
$276Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
8:45 am - 4:50 pm
SDF
-
SAT
9h 05m
2 stops
Southwest Logo
7:35 am - 4:20 pm
SAT
-
SDF
7h 45m
2 stops
$281Southwest
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
7:27 pm - 12:11 am
SDF
-
SAT
5h 44m
1 stop
American Airlines Logo
5:43 pm - 11:31 pm
SAT
-
SDF
4h 48m
1 stop
$293American Airlines
Wed, Oct 21 - Mon, Oct 26
Southwest Logo
8:45 am - 4:50 pm
SDF
-
SAT
9h 05m
2 stops
Southwest Logo
2:35 pm - 9:30 pm
SAT
-
SDF
5h 55m
1 stop
$298Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
8:45 am - 4:50 pm
SDF
-
SAT
9h 05m
2 stops
Southwest Logo
7:35 am - 4:20 pm
SAT
-
SDF
7h 45m
2 stops
$303Southwest
Wed, Aug 12 - Wed, Aug 19
Delta Logo
7:30 pm - 12:28 am
SDF
-
SAT
5h 58m
1 stop
Delta Logo
5:30 am - 11:36 am
SAT
-
SDF
5h 06m
1 stop
$315Delta
Tue, Dec 1 - Wed, Dec 2
Southwest Logo
7:10 pm - 11:15 pm
SDF
-
SAT
5h 05m
1 stop
Southwest Logo
12:20 pm - 8:25 pm
SAT
-
SDF
7h 05m
2 stops
$320Southwest
Mon, Aug 17 - Mon, Aug 24
Breeze Airways Logo
10:56 am - 8:45 am
SDF
-
SAT
22h 49m
1 stop
Breeze Airways Logo
12:38 pm - 10:11 am
SAT
-
SDF
20h 33m
2 stops
$323Breeze Airways
Sat, Sep 19 - Fri, Sep 25
Delta Logo
7:30 pm - 12:27 am
SDF
-
SAT
5h 57m
1 stop
Delta Logo
6:22 pm - 12:02 am
SAT
-
SDF
4h 40m
1 stop
$325Delta
Tue, Oct 20 - Wed, Oct 28

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United Airlines flights from Louisville to San Antonio

Our best United Airlines deals on Louisville to San Antonio flight tickets
United Airlines
Sep 29
SDF3:36 pmLouisville Intl
6h 06m
1 stop
SAT8:42 pmSan Antonio
Sep 30
SAT7:00 amSan Antonio
6h 39m
1 stop
SDF2:39 pmLouisville Intl
$266
United Airlines
Aug 25
SDF7:25 amLouisville Intl
4h 12m
1 stop
SAT10:37 amSan Antonio
Aug 27
SAT5:27 pmSan Antonio
5h 32m
1 stop
SDF11:59 pmLouisville Intl
$271
United Airlines
Oct 24
SDF10:13 amLouisville Intl
7h 17m
1 stop
SAT4:30 pmSan Antonio
Oct 26
SAT1:52 pmSan Antonio
7h 32m
1 stop
SDF10:24 pmLouisville Intl
$351

Southwest flights from Louisville to San Antonio

Our best Southwest deals on Louisville to San Antonio flight tickets
Southwest
Aug 12
SDF8:45 amLouisville Intl
9h 05m
2 stops
SAT4:50 pmSan Antonio
Aug 19
SAT2:35 pmSan Antonio
5h 55m
1 stop
SDF9:30 pmLouisville Intl
$276
Southwest
Aug 12
SDF8:45 amLouisville Intl
9h 05m
2 stops
SAT4:50 pmSan Antonio
Aug 19
SAT2:35 pmSan Antonio
5h 55m
1 stop
SDF9:30 pmLouisville Intl
$298
Southwest
Aug 12
SDF8:45 amLouisville Intl
9h 05m
2 stops
SAT4:50 pmSan Antonio
Aug 19
SAT7:35 amSan Antonio
7h 45m
2 stops
SDF4:20 pmLouisville Intl
$303

momondo Fare Finder

 
Customize your flight search to find flights from Louisville 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 July 25, 2026.
Use the filters below to find and compare flights from Louisville to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 9/3

7:10 pm-11:15 pm

1 stop5h 05m

San Antonio

Mon 9/7

2:55 pm-10:35 pm

1 stop6h 40m

$271

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 8/12

8:45 am-4:50 pm

2 stops9h 05m

San Antonio

Wed 8/19

2:35 pm-9:30 pm

1 stop5h 55m

$276

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 8/12

8:45 am-4:50 pm

2 stops9h 05m

San Antonio

Wed 8/19

7:35 am-4:20 pm

2 stops7h 45m

$281
Quickest round-trip

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 10/21

7:27 pm-12:11 am

1 stop5h 44m

San Antonio

Mon 10/26

5:43 pm-11:31 pm

1 stop4h 48m

$293

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 8/12

8:45 am-4:50 pm

2 stops9h 05m

San Antonio

Wed 8/19

2:35 pm-9:30 pm

1 stop5h 55m

$298

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 8/12

8:45 am-4:50 pm

2 stops9h 05m

San Antonio

Wed 8/19

7:35 am-4:20 pm

2 stops7h 45m

$303

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 12/1

7:30 pm-12:28 am

1 stop5h 58m

San Antonio

Wed 12/2

5:30 am-11:36 am

1 stop5h 06m

$315

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 8/17

7:10 pm-11:15 pm

1 stop5h 05m

San Antonio

Mon 8/24

12:20 pm-8:25 pm

2 stops7h 05m

$320

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sat 9/19

10:56 am-8:45 am

1 stop22h 49m

San Antonio

Fri 9/25

12:38 pm-10:11 am

2 stops20h 33m

$323

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 10/20

7:30 pm-12:27 am

1 stop5h 57m

San Antonio

Wed 10/28

6:22 pm-12:02 am

1 stop4h 40m

$325

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 Louisville 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 Louisville and San Antonio?

Prices are currently low for flights on this route.

Typical prices usually range from $348 to $434.
The lowest price recently found on this route was $271.

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of February, then book flights to San Antonio from Louisville during November instead. Flights to San Antonio in November, while not as cheap as those in February, still average around $359.

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

You are more likely to see cheaper flights to San Antonio from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $419 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Louisville for as low as $319 on momondo.

How have Louisville to San Antonio flight prices changed over time?

As of July 2026, prices for Louisville to San Antonio flights are approximately 199% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to San Antonio

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

Cheap Louisville to San Antonio (SDF to SAT) flight deals and tips

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

Fastest flight time

4h 15m

Direct flights

None
The fastest flight from Louisville to San Antonio takes 4h 15m
There are no direct flights from Louisville to San Antonio. There are no popular flight routes from Louisville to San Antonio.
Search flight deals

Frequently asked questions about flying from Louisville to San Antonio

  • How far is Louisville Intl to San Antonio by plane?

    A flight from Louisville Intl to San Antonio will travel around 949.7 mi. 4h 15m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Louisville Intl Airport to San Antonio Airport?

    Prices for flights from Louisville Intl Airport to San Antonio Airport were last updated today.

  • How many operators does momondo search for flights from Louisville Intl Airport to San Antonio Airport?

  • How old do you have to be to fly from Louisville Intl Airport 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 Louisville Intl 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 airline from Louisville to San Antonio?

Best airlines flying from Louisville to San Antonio

Compare and see reviews for airlines that fly from Louisville to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $127Free CancellationRating
7.8
8,486 reviews
Search Delta flights
American AirlinesPriceFrom $283Free CancellationRating
7.1
11,848 reviews
Search American Airlines flights
SouthwestPriceFrom $309Free CancellationRating
8.0
4,233 reviews
Search Southwest flights
United AirlinesPriceFrom $319Free CancellationRating
7.4
10,034 reviews
Search United Airlines flights

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 Louisville to San Antonio?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to San Antonio for you.

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

momondo does allow users to show only those flights to San Antonio from Louisville which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Louisville and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Louisville to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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