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$105+ Cheap flights from San Antonio to Louisville (SAT - SDF)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SDF
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Louisville Intl are usually found in August or February, booked 83 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap flight deals from San Antonio to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Louisville (SDF). 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 agosto 14, 2025.

Round-trip from

$223
(American Airlines)

One-way from

$105
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$334
From San Antonio to Louisville Intl
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One-way flight from San Antonio to Louisville Intl
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Highest demand for flights based on searches. 14% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from San Antonio to Louisville

Cheapest flights from San Antonio to Louisville
Explore the most affordable flight options available from San Antonio to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 11/41:40 pmSAT - SDF
1 stop6h 59mAmerican Airlines
jue. 11/612:43 pmSDF - SAT
1 stop5h 54mAmerican Airlines
Deal found 8/14$223
This Southwest deal was found by Cheapflights users on 8/14. 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.
mar. 11/410:40 amSAT - SDF
2 stops5h 30mSouthwest
jue. 11/64:45 pmSDF - SAT
1 stop7h 55mSouthwest
Deal found 8/14$228
This FlightHub deal was found by Cheapflights users on 8/14. 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.
lun. 9/2212:45 pmSAT - SDF
1 stop19h 34mSpirit Airlines
jue. 9/2510:14 amSDF - SAT
1 stop26h 26mSpirit Airlines
Deal found 8/14$245
This Delta deal was found by Cheapflights users on 8/14. 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.
mar. 9/166:11 pmSAT - SDF
1 stop4h 41mDelta
vie. 9/196:33 pmSDF - SAT
1 stop5h 52mDelta
Deal found 8/14$252
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/109:47 pmSAT - SDF
1 stop16h 33mSpirit Airlines
lun. 9/228:23 amSDF - SAT
1 stop10h 49mSpirit Airlines
Deal found 8/14$257
This FlightHub deal was found by Cheapflights users on 8/14. 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.
jue. 9/112:54 pmSAT - SDF
1 stop17h 25mSpirit Airlines
lun. 9/158:23 amSDF - SAT
1 stop10h 49mSpirit Airlines
Deal found 8/14$261
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2212:45 pmSAT - SDF
1 stop19h 34mMultiple Airlines
jue. 9/254:20 pmSDF - SAT
2 stops20h 26mMultiple Airlines
Deal found 8/14$283
This American Airlines deal was found by Cheapflights users on 8/14. 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.
dom. 11/168:34 amSAT - SDF
1 stop6h 10mAmerican Airlines
jue. 11/205:20 pmSDF - SAT
1 stop5h 37mAmerican Airlines
Deal found 8/14$287
This United Airlines deal was found by Cheapflights users on 8/14. 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.
mar. 9/168:55 amSAT - SDF
2 stops11h 07mUnited Airlines
vie. 9/193:35 pmSDF - SAT
1 stop5h 17mUnited Airlines
Deal found 8/14$313
This FlightHub deal was found by Cheapflights users on 8/14. 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.
mié. 9/179:47 pmSAT - SDF
1 stop16h 33mSpirit Airlines
lun. 9/224:20 pmSDF - SAT
1 stop29h 32mSpirit Airlines
Deal found 8/14$322

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Louisville 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 agosto 14, 2025.
Use the filters below to find and compare flights from San Antonio to Louisville that are best for you.

Fly from

San Antonio

Fly to

Louisville

Route

Depart

Return

Price

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mar. 11/4

1:40 pm-9:39 pm

1 stop6h 59m

Louisville Intl

jue. 11/6

12:43 pm-5:37 pm

1 stop5h 54m

$223

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mar. 11/4

10:40 am-5:10 pm

2 stops5h 30m

Louisville Intl

jue. 11/6

4:45 pm-11:40 pm

1 stop7h 55m

$228

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

lun. 9/22

12:45 pm-9:19 am

1 stop19h 34m

Louisville Intl

jue. 9/25

10:14 am-11:40 am

1 stop26h 26m

$245

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mar. 9/16

2:00 pm-9:13 pm

1 stop6h 13m

Louisville Intl

vie. 9/19

6:33 pm-11:25 pm

1 stop5h 52m

$252

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mié. 9/10

9:47 pm-3:20 pm

1 stop16h 33m

Louisville Intl

lun. 9/22

8:23 am-6:12 pm

1 stop10h 49m

$257

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

jue. 9/11

2:54 pm-9:19 am

1 stop17h 25m

Louisville Intl

lun. 9/15

8:23 am-6:12 pm

1 stop10h 49m

$261

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

lun. 9/22

12:45 pm-9:19 am

1 stop19h 34m

Louisville Intl

jue. 9/25

4:20 pm-11:46 am

2 stops20h 26m

$283

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

dom. 11/16

8:34 am-3:44 pm

1 stop6h 10m

Louisville Intl

jue. 11/20

5:20 pm-9:57 pm

1 stop5h 37m

$287

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mar. 9/23

9:11 am-4:04 pm

1 stop5h 53m

$105

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

mié. 9/24

7:22 am-4:48 pm

1 stop8h 26m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
1
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Best time to book a flight from San Antonio to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from San Antonio 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 San Antonio to Louisville

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Louisville. Price data was last updated on August 8, 2025.

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Antonio to Louisville (average of $299). Flying from San Antonio to Louisville in April is currently the most expensive (average of $369). 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 SAT to SDF?

Find hourly flight availability from San Antonio to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

A simple way to save on the total cost of your ticket is to fly from San Antonio to Louisville in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated agosto 14, 2025.
Read through reviews of airlines operating flights from San Antonio to Louisville, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Louisville. 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 San Antonio to Louisville round-trip?

    Currently priced at $183, Delta will fly you from San Antonio to Louisville and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $270 and $279, respectively. Delta is priced at 53% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $105. Southwest flights start at $110 while deals on Delta start at $119 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Louisville 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 San Antonio to Louisville?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Louisville (average of $299). Flying from San Antonio to Louisville in April is currently the most expensive (average of $369). 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
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 3 airlines flying from San Antonio to Louisville

Discover the top 3 airlines that operate flights from San Antonio to Louisville. 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$183Average$341FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$270Average$387FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$279Average$381FlexibilityNo cancel feeOn-time71%

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