HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$99+ Cheap flights from Louisville to San Antonio (SDF - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
Jun 18 — Jun 251
Wed 6/18
Wed 6/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Louisville Intl to San Antonio are usually found in August or September, booked 49 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from Louisville to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 13, 2025.

Round-trip from

$208
(FlightHub)

One-way from

$99
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$350
From Louisville Intl to San Antonio
Search Deals
One-way flight from Louisville Intl to San Antonio
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Louisville to San Antonio

Cheapest flights from Louisville to San Antonio
Explore the most affordable flight options available from Louisville to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:00 pmSDF - SAT
1 stop24h 14mSpirit Airlines
Sun 10/1912:09 pmSAT - SDF
1 stop21h 44mSpirit Airlines
Deal found 6/11$208
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/71:57 pmSDF - SAT
1 stop22h 40mMultiple Airlines
Tue 7/84:20 pmSAT - SDF
2 stops15h 36mMultiple Airlines
Deal found 6/11$234
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:41 amSDF - SAT
1 stop9h 13mAmerican Airlines
Mon 11/173:20 pmSAT - SDF
1 stop7h 59mAmerican Airlines
Deal found 6/11$243
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:00 amSDF - SAT
1 stop5h 21mDelta
Mon 9/2212:15 pmSAT - SDF
1 stop5h 46mDelta
Deal found 6/11$247
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:55 pmSDF - SAT
2 stops7h 50mSouthwest
Mon 8/186:50 amSAT - SDF
1 stop7h 40mSouthwest
Deal found 6/12$252
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:00 amSDF - SAT
2 stops9h 44mUnited Airlines
Mon 11/171:23 pmSAT - SDF
1 stop8h 07mUnited Airlines
Deal found 6/11$322

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 13, 2025.
Use the filters below to find and compare flights from Louisville to San Antonio that are best for you.

Fly from

Louisville

Fly to

San Antonio

Route

Depart

Return

Price

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 10/17

12:00 pm-11:14 am

1 stop24h 14m

San Antonio

Sun 10/19

12:09 pm-10:53 am

1 stop21h 44m

$208

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 7/7

1:57 pm-11:37 am

1 stop22h 40m

San Antonio

Tue 7/8

4:20 pm-8:56 am

2 stops15h 36m

$234

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 11/13

7:41 am-3:54 pm

1 stop9h 13m

San Antonio

Mon 11/17

3:20 pm-12:19 am

1 stop7h 59m

$243

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 9/17

7:00 am-11:21 am

1 stop5h 21m

San Antonio

Mon 9/22

12:15 pm-7:01 pm

1 stop5h 46m

$247

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 8/14

12:55 pm-7:45 pm

2 stops7h 50m

San Antonio

Mon 8/18

6:50 am-3:30 pm

1 stop7h 40m

$252

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 11/13

9:00 am-5:44 pm

2 stops9h 44m

San Antonio

Mon 11/17

1:23 pm-10:30 pm

1 stop8h 07m

$322

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 6/30

1:57 pm-11:37 am

1 stop22h 40m

$99

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sat 7/5

10:43 am-5:04 pm

1 stop7h 21m

$149

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 7/9

9:46 am-4:33 pm

3 stops31h 47m

$161

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 10/10

6:15 am-12:20 pm

2 stops7h 05m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Louisville to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to San Antonio

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to San Antonio. Price data was last updated on June 9, 2025.

The price you pay for your flight from Louisville to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Louisville to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Louisville to San Antonio (average of $295). Flying from Louisville to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to SAT?

Find hourly flight availability from Louisville to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to San Antonio in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Louisville to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Louisville to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Louisville to San Antonio flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated June 13, 2025.
To help decide which airline to fly from Louisville to San Antonio, see what other customers have to say about Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,286 reviews
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,792 reviews
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,286 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Louisville to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Louisville to San Antonio round-trip?

    According to our current data, Spirit Airlines ($208), American Airlines ($243), and Delta ($247) offers the cheapest pricing from Louisville to San Antonio. You may be able to fly from Louisville to San Antonio for 43% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Louisville to San Antonio one-way?

    The cheapest airlines for a one-way flight from Louisville to San Antonio are Spirit Airlines ($99), Delta ($149), and Southwest ($267).

  • Can I find deals for flights from Louisville to San Antonio that include hotel bookings?

    Yes. In addition to deals on Louisville to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to San Antonio.

  • Can I find deals for business class flights from Louisville to San Antonio?

    Yes. Cheapflights offers flight deals from Louisville to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Louisville to San Antonio (average of $295). Flying from Louisville to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
New Braunfels

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Dallas/Fort Worth flights
Cincinnati to Hobby flights
Nashville to Dallas/Fort Worth flights
Cincinnati to George Bush Intcntl flights
Nashville to Hobby flights
Louisville to Hobby flights
Nashville to George Bush Intcntl flights
Louisville to George Bush Intcntl flights
Louisville to Dallas/Fort Worth flights
Cincinnati to Austin flights
Nashville to Love Field flights
Lexington to Dallas/Fort Worth flights
Knoxville to Dallas/Fort Worth flights
Nashville to Austin flights
Cincinnati to Love Field flights
Lexington to Hobby flights
Knoxville to George Bush Intcntl flights
Cincinnati to San Antonio flights
Knoxville to Hobby flights
Nashville to San Antonio flights
Louisville to Austin flights
Lexington to George Bush Intcntl flights
Louisville to Love Field flights
Knoxville to Austin flights
Evansville to Dallas/Fort Worth flights
Lexington to Austin flights
Lexington to San Antonio flights
Knoxville to San Antonio flights
Nashville to El Paso flights
Blountville to Dallas/Fort Worth flights
Cincinnati to El Paso flights
Owensboro to Dallas/Fort Worth flights
Blountville to Hobby flights
Blountville to George Bush Intcntl flights
Knoxville to Love Field flights
Lexington to Love Field flights
Blountville to Love Field flights
Evansville to San Antonio flights
Louisville to El Paso flights
Nashville to Corpus Christi flights
Blountville to San Antonio flights
Cincinnati to Corpus Christi flights
Cincinnati to Midland flights
Cincinnati to McAllen flights
Evansville to Love Field flights
Knoxville to El Paso flights
Evansville to Hobby flights
Huntington to George Bush Intcntl flights
Nashville to Lubbock flights

Top 5 airlines flying from Louisville to San Antonio

Discover the top 5 airlines that operate flights from Louisville to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$194Average$237FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$266Average$386FlexibilityNo cancel feeOn-time71%
DeltaCheapest$266Average$356FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$432FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$407FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Privacy Preferences©2025 Cheapflights