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$121+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SDF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$258
(Kiwi.com)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$372
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 ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/157:00 amSAT - SDF
1 stop30h 02mSpirit Airlines
Wed 10/225:31 pmSDF - SAT
1 stop25h 59mSpirit Airlines
Deal found 9/16$263
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 10/167:35 pmSAT - SDF
1 stop12h 26mMultiple Airlines
Sat 10/186:58 pmSDF - SAT
1 stop24h 32mMultiple Airlines
Deal found 9/16$264
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/247:10 pmSAT - SDF
1 stop26h 37mMultiple Airlines
Mon 10/2711:47 amSDF - SAT
1 stop7h 43mMultiple Airlines
Deal found 9/15$267
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/144:16 pmSAT - SDF
1 stop16h 43mSpirit Airlines
Sun 11/165:20 pmSDF - SAT
1 stop18h 52mSpirit Airlines
Deal found 9/16$272
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/144:16 pmSAT - SDF
1 stop16h 43mMultiple Airlines
Sun 11/165:20 pmSDF - SAT
2 stops16h 54mMultiple Airlines
Deal found 9/16$300
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/247:35 pmSAT - SDF
2 stops26h 12mSpirit Airlines
Mon 10/2711:47 amSDF - SAT
1 stop7h 43mSpirit Airlines
Deal found 9/15$301
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 11/41:45 pmSAT - SDF
1 stop9h 00mSouthwest
Thu 11/65:30 pmSDF - SAT
1 stop7h 00mSouthwest
Deal found 9/15$305
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 10/213:59 pmSAT - SDF
2 stops24h 56mMultiple Airlines
Fri 10/2411:47 amSDF - SAT
1 stop7h 43mMultiple Airlines
Deal found 9/16$309
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:35 pmSAT - SDF
1 stop14h 17mSpirit Airlines
Sun 11/27:15 amSDF - SAT
1 stop9h 35mSpirit Airlines
Deal found 9/15$317

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 September 17, 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

Wed 10/15

7:00 am-2:02 pm

1 stop30h 02m

Louisville Intl

Wed 10/22

5:31 pm-6:30 pm

1 stop25h 59m

$263

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 10/16

7:35 pm-9:01 am

1 stop12h 26m

Louisville Intl

Sat 10/18

6:58 pm-6:30 pm

1 stop24h 32m

$264

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Tue 11/4

1:45 pm-11:45 pm

1 stop9h 00m

Louisville Intl

Thu 11/6

5:30 pm-11:30 pm

1 stop7h 00m

$305

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 10/22

3:02 pm-11:24 pm

1 stop7h 22m

Louisville Intl

Mon 10/27

6:17 pm-11:43 pm

1 stop6h 26m

$340

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sun 11/23

5:15 am-1:42 pm

1 stop7h 27m

Louisville Intl

Thu 11/27

7:50 am-1:00 pm

1 stop6h 10m

$350

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sun 11/23

6:08 am-12:13 pm

1 stop5h 05m

Louisville Intl

Thu 11/27

7:13 am-11:40 am

1 stop5h 27m

$350

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Tue 10/21

12:20 pm-12:30 am

2 stops11h 10m

Louisville Intl

Fri 10/24

5:40 am-12:20 pm

2 stops7h 40m

$352

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Fri 12/12

6:10 am-11:45 am

1 stop4h 35m

Louisville Intl

Sat 12/27

8:00 pm-1:20 am

1 stop6h 20m

$386

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sat 10/4

9:47 pm-2:02 pm

1 stop15h 15m

Louisville Intl

Mon 10/6

11:47 am-6:30 pm

1 stop7h 43m

$391

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 10/16

7:35 pm-9:01 am

1 stop12h 26m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 19 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 September 12, 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 September 17, 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 September 17, 2025.
Read through reviews of airlines operating flights from San Antonio to Louisville, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from San Antonio to Louisville?

    Airlines like Spirit Airlines and Southwest fly from San Antonio to Louisville in about 9h. The time it takes to get you to your destination can typically vary by up to 21h 02m. The distance between San Antonio and Louisville is about 941 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 United Airlines and Southwest - these airlines can fly you to your destination from $236 and $270, 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $125. United Airlines flights start at $157 while deals on American Airlines start at $162 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 4 airlines flying from San Antonio to Louisville

Discover the top 4 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$183Average$356FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$462FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$270Average$390FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$279Average$372FlexibilityNo cancel feeOn-time71%

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