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$144+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SDF
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find cheap flights from San Antonio to Louisville 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”

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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 November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Kiwi.com)

One-way from

$144
(Delta)

Popular in

December

Cheapest in

August

Average price

$378
Provider with most accurate pricing for San Antonio-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Louisville Intl flights.
Search Deals
From San Antonio to Louisville Intl
Search Deals
One-way flight from San Antonio to Louisville Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/137:37 pmSAT - SDF
1 stop12h 27mMultiple Airlines
Mon 11/177:46 pmSDF - SAT
1 stop23h 46mMultiple Airlines
Deal found 10/31$311
This Delta deal was found by Cheapflights users on 10/30. 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.
Sun 12/146:30 amSAT - SDF
1 stop6h 41mDelta
Tue 12/166:00 amSDF - SAT
1 stop7h 11mDelta
Deal found 10/30$337
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sun 12/143:45 pmSAT - SDF
1 stop4h 45mSouthwest
Tue 12/1611:45 amSDF - SAT
2 stops8h 10mSouthwest
Deal found 10/30$342
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/137:37 pmSAT - SDF
1 stop12h 27mMultiple Airlines
Sun 11/168:53 pmSDF - SAT
1 stop13h 11mMultiple Airlines
Deal found 10/31$348
This Southwest deal was found by Cheapflights users on 11/1. 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.
Wed 11/265:25 pmSAT - SDF
1 stop5h 40mSouthwest
Mon 12/18:15 pmSDF - SAT
1 stop4h 40mSouthwest
Deal found 11/1$362
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 11/235:39 pmSAT - SDF
1 stop5h 43mAmerican Airlines
Thu 11/276:30 amSDF - SAT
1 stop7h 31mAmerican Airlines
Deal found 11/1$383
This Southwest deal was found by Cheapflights users on 11/1. 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.
Sat 11/297:00 amSAT - SDF
1 stop11h 00mSouthwest
Sat 12/63:30 pmSDF - SAT
1 stop6h 20mSouthwest
Deal found 11/1$386
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 12/195:20 amSAT - SDF
1 stop7h 29mDelta
Fri 1/26:00 amSDF - SAT
1 stop5h 11mDelta
Deal found 11/2$387
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 11/127:37 pmSAT - SDF
1 stop21h 39mMultiple Airlines
Mon 11/177:46 pmSDF - SAT
1 stop23h 46mMultiple Airlines
Deal found 10/31$389
This Southwest deal was found by Cheapflights users on 11/1. 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.
Wed 11/262:30 pmSAT - SDF
1 stop7h 50mSouthwest
Fri 11/286:35 amSDF - SAT
2 stops8h 50mSouthwest
Deal found 11/1$397

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 November 2, 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

Thu 1/29

6:00 am-11:45 pm

1 stop16h 45m

Louisville Intl

Sat 1/31

6:00 am-10:27 pm

1 stop17h 27m

$197

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 1/29

6:44 pm-6:04 pm

2 stops22h 20m

Louisville Intl

Sat 1/31

6:00 am-2:07 pm

3 stops33h 07m

$318

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Tue 12/16

11:51 am-9:13 pm

1 stop8h 22m

Louisville Intl

Fri 12/19

10:44 am-4:04 pm

1 stop6h 20m

$337

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sun 12/14

3:45 pm-9:30 pm

1 stop4h 45m

Louisville Intl

Tue 12/16

11:45 am-6:55 pm

2 stops8h 10m

$342

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 11/26

5:25 pm-12:05 am

1 stop5h 40m

Louisville Intl

Mon 12/1

8:15 pm-11:55 pm

1 stop4h 40m

$362

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sun 11/23

5:39 pm-12:22 am

1 stop5h 43m

Louisville Intl

Thu 11/27

6:30 am-1:01 pm

1 stop7h 31m

$383

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Sat 11/29

7:00 am-7:00 pm

1 stop11h 00m

Louisville Intl

Sat 12/6

3:30 pm-8:50 pm

1 stop6h 20m

$386

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Fri 12/19

5:20 am-1:49 pm

1 stop7h 29m

Louisville Intl

Fri 1/2

6:00 am-10:11 am

1 stop5h 11m

$387

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 11/13

2:04 pm-8:12 pm

2 stops29h 08m

Louisville Intl

Mon 11/17

7:46 pm-6:32 pm

1 stop23h 46m

$389

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 11/26

2:30 pm-11:20 pm

1 stop7h 50m

Louisville Intl

Fri 11/28

6:35 am-2:25 pm

2 stops8h 50m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 18 results
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Compare providers for flights from San Antonio to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Louisville in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Louisville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 31, 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, September is the cheapest month in which you can book a flight from San Antonio to Louisville (average of $56). Flying from San Antonio to Louisville in January is currently the most expensive (average of $196). 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 November 2, 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 40% on your trip compared to booking a flight in the evening.

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 November 2, 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
4,240 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
8,997 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
11,034 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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, Delta, and Southwest fly from San Antonio to Louisville in about 4h 45m. The time it takes to get you to your destination can typically vary by up to 12h. 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 52% 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 $144. Delta flights start at $144 while deals on Spirit Airlines start at $161 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, September is the cheapest month in which you can book a flight from San Antonio to Louisville (average of $56). Flying from San Antonio to Louisville in January is currently the most expensive (average of $196). 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$183Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$450FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$270Average$388FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$279Average$383FlexibilityNo cancel feeOn-time71%

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