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Cheap flights from Louisville to San Antonio from $85

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 2/18. 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 Louisville to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
1:19 pm - 11:59 pm
SDF
-
SAT
11h 40m
1 stop
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$240Spirit Airlines
Wed, Feb 18 - Wed, Apr 15
Spirit Airlines Logo
1:19 pm - 11:59 pm
SDF
-
SAT
11h 40m
1 stop
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$242Spirit Airlines
Fri, Feb 20 - Mon, Feb 23
Spirit Airlines Logo
1:19 pm - 11:59 pm
SDF
-
SAT
11h 40m
1 stop
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$247Spirit Airlines
Wed, Feb 18 - Wed, Apr 15
Multiple Airlines Logo
9:30 am - 9:30 am
SDF
-
SAT
25h 00m
1 stop
Multiple Airlines Logo
1:22 pm - 11:08 am
SAT
-
SDF
20h 46m
1 stop
$258Multiple Airlines
Mon, Mar 9 - Tue, Mar 17
Spirit Airlines Logo
1:19 pm - 11:59 pm
SDF
-
SAT
11h 40m
1 stop
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$262Spirit Airlines
Fri, Mar 6 - Mon, Mar 9
Spirit Airlines Logo
1:19 pm - 9:30 am
SDF
-
SAT
21h 11m
2 stops
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$269Spirit Airlines
Fri, Feb 20 - Mon, Feb 23
Spirit Airlines Logo
3:33 pm - 9:30 am
SDF
-
SAT
18h 57m
1 stop
Spirit Airlines Logo
10:26 am - 12:21 pm
SAT
-
SDF
24h 55m
2 stops
$275Spirit Airlines
Tue, Feb 17 - Thu, Feb 19
Multiple Airlines Logo
1:19 pm - 1:23 pm
SDF
-
SAT
25h 04m
1 stop
Multiple Airlines Logo
3:36 pm - 2:38 pm
SAT
-
SDF
22h 02m
2 stops
$284Multiple Airlines
Fri, Mar 6 - Mon, Mar 9
Spirit Airlines Logo
1:19 pm - 9:30 am
SDF
-
SAT
45h 11m
2 stops
Spirit Airlines Logo
1:22 pm - 11:08 am
SAT
-
SDF
20h 46m
1 stop
$286Spirit Airlines
Mon, Mar 9 - Tue, Mar 17
Spirit Airlines Logo
1:19 pm - 9:30 am
SDF
-
SAT
21h 11m
2 stops
Spirit Airlines Logo
10:26 am - 2:38 pm
SAT
-
SDF
27h 12m
1 stop
$289Spirit Airlines
Wed, Feb 18 - Wed, Apr 15

Southwest flights from Louisville to San Antonio

Our best Southwest deals on Louisville to San Antonio flight tickets
Southwest
Mar 7
SDF6:15 pmLouisville Intl
6h 40m
2 stops
SAT11:55 pmSan Antonio
Mar 10
SAT12:20 pmSan Antonio
7h 10m
2 stops
SDF8:30 pmLouisville Intl
$309
Southwest
Feb 19
SDF11:40 amLouisville Intl
9h 40m
2 stops
SAT8:20 pmSan Antonio
Feb 24
SAT12:25 pmSan Antonio
8h 45m
2 stops
SDF10:10 pmLouisville Intl
$330
Southwest
Mar 5
SDF6:15 pmLouisville Intl
7h 50m
1 stop
SAT1:05 amSan Antonio
Mar 8
SAT4:25 pmSan Antonio
7h 10m
1 stop
SDF12:35 amLouisville Intl
$334

Delta flights from Louisville to San Antonio

Our best Delta deals on Louisville to San Antonio flight tickets
Delta
Apr 8
SDF8:05 amLouisville Intl
5h 37m
1 stop
SAT12:42 pmSan Antonio
Apr 15
SAT8:00 amSan Antonio
5h 31m
1 stop
SDF2:31 pmLouisville Intl
$299
Delta
Feb 11
SDF5:35 amLouisville Intl
5h 15m
1 stop
SAT9:50 amSan Antonio
Feb 17
SAT4:29 pmSan Antonio
6h 29m
1 stop
SDF11:58 pmLouisville Intl
$333
Delta
May 20
SDF6:00 amLouisville Intl
6h 19m
1 stop
SAT11:19 amSan Antonio
May 31
SAT6:20 pmSan Antonio
4h 39m
1 stop
SDF11:59 pmLouisville Intl
$343

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 January 29, 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

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 2/18

1:19 pm-11:59 pm

1 stop11h 40m

San Antonio

Wed 4/15

10:26 am-2:38 pm

1 stop27h 12m

$240

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 2/20

1:19 pm-11:59 pm

1 stop11h 40m

San Antonio

Mon 2/23

10:26 am-2:38 pm

1 stop27h 12m

$242

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 2/18

1:19 pm-11:59 pm

1 stop11h 40m

San Antonio

Wed 4/15

10:26 am-2:38 pm

1 stop27h 12m

$247

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 3/9

9:30 am-9:30 am

1 stop25h 00m

San Antonio

Tue 3/17

1:22 pm-11:08 am

1 stop20h 46m

$258

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 3/6

1:19 pm-11:59 pm

1 stop11h 40m

San Antonio

Mon 3/9

10:26 am-2:38 pm

1 stop27h 12m

$262

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 2/20

1:19 pm-9:30 am

2 stops21h 11m

San Antonio

Mon 2/23

10:26 am-2:38 pm

1 stop27h 12m

$269

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 2/17

3:33 pm-9:30 am

1 stop18h 57m

San Antonio

Thu 2/19

10:26 am-12:21 pm

2 stops24h 55m

$275

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 3/6

1:19 pm-1:23 pm

1 stop25h 04m

San Antonio

Mon 3/9

3:36 pm-2:38 pm

2 stops22h 02m

$284

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 3/9

1:19 pm-9:30 am

2 stops45h 11m

San Antonio

Tue 3/17

1:22 pm-11:08 am

1 stop20h 46m

$286

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 2/18

1:19 pm-9:30 am

2 stops21h 11m

San Antonio

Wed 4/15

10:26 am-2:38 pm

1 stop27h 12m

$289

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 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 Louisville during June instead. Flights to San Antonio in June, while not as cheap as those in August, still average around $363.

How far in advance should I book a flight 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 $398 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 $314 on momondo.

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

As of January 2026, prices for Louisville to San Antonio flights are approximately 7% cheaper 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

5h 49m

Direct flights

None
The fastest flight from Louisville to San Antonio takes 5h 49m
There are no direct flights from Louisville to San Antonio. There are no popular flight routes from Louisville to San Antonio.
Search flight deals

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

    A flight from Louisville Intl to San Antonio will travel around 949.7 mi. 5h 49m 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
Spirit AirlinesPriceFrom $68Free CancellationRating
6.3
8,393 reviews
Search Spirit Airlines flights
DeltaPriceFrom $148Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $283Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
United AirlinesPriceFrom $323Free CancellationRating
7.4
9,215 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
Boerne
Pleasanton
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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