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$85+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SDF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This CheapOair deal was found by Cheapflights users on 1/27. 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.
Wed 3/46:00 am
SAT
-
SDF
1 stop5h 21m
Spirit Airlines
Sun 3/83:33 pm
SDF
-
SAT
1 stop18h 57m
Spirit Airlines
Deal found 1/27$225
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Fri 2/2010:26 am
SAT
-
SDF
1 stop23h 39m
Spirit Airlines
Sun 2/223:33 pm
SDF
-
SAT
1 stop18h 57m
Spirit Airlines
Deal found 1/27$236
This CheapOair deal was found by Cheapflights users on 1/28. 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.
Wed 4/1510:26 am
SAT
-
SDF
1 stop27h 12m
Spirit Airlines
Sun 4/193:33 pm
SDF
-
SAT
1 stop18h 57m
Spirit Airlines
Deal found 1/28$240
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 2/1810:26 am
SAT
-
SDF
1 stop27h 12m
Spirit Airlines
Sun 2/223:33 pm
SDF
-
SAT
1 stop18h 57m
Spirit Airlines
Deal found 1/29$252
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/2010:26 am
SAT
-
SDF
1 stop23h 39m
Multiple Airlines
Sun 2/223:33 pm
SDF
-
SAT
2 stops25h 45m
Multiple Airlines
Deal found 1/27$259
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 2/1810:26 am
SAT
-
SDF
1 stop27h 12m
Multiple Airlines
Sun 2/222:26 pm
SDF
-
SAT
2 stops26h 52m
Multiple Airlines
Deal found 1/29$276
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 5/810:26 am
SAT
-
SDF
1 stop7h 32m
Multiple Airlines
Mon 5/117:48 pm
SDF
-
SAT
1 stop14h 42m
Multiple Airlines
Deal found 1/27$285
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/46:00 am
SAT
-
SDF
2 stops30h 26m
Multiple Airlines
Sun 3/83:33 pm
SDF
-
SAT
1 stop18h 57m
Multiple Airlines
Deal found 1/27$286
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 5/56:00 am
SAT
-
SDF
1 stop28h 38m
Multiple Airlines
Mon 5/117:48 pm
SDF
-
SAT
1 stop14h 42m
Multiple Airlines
Deal found 1/27$287
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/2610:26 am
SAT
-
SDF
1 stop21h 14m
Multiple Airlines
Thu 3/52:26 pm
SDF
-
SAT
2 stops25h 25m
Multiple Airlines
Deal found 1/27$290
This CheapOair deal was found by Cheapflights users on 1/28. 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.
Sun 4/51:22 pm
SAT
-
SDF
1 stop20h 46m
Spirit Airlines
Wed 4/812:03 pm
SDF
-
SAT
1 stop25h 24m
Spirit Airlines
Deal found 1/28$294

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$225
(CheapOair)

One-way from

$85
(Priceline)

Popular in

January

Cheapest in

August

Average price

$438
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. 2% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Fri 2/20

10:26 am-11:05 am

1 stop23h 39m

Louisville Intl

Sun 2/22

3:33 pm-9:30 am

1 stop18h 57m

$236

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 4/15

10:26 am-2:38 pm

1 stop27h 12m

Louisville Intl

Sun 4/19

3:33 pm-9:30 am

1 stop18h 57m

$240

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 2/18

10:26 am-2:38 pm

1 stop27h 12m

Louisville Intl

Sun 2/22

3:33 pm-9:30 am

1 stop18h 57m

$252

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Fri 2/20

10:26 am-11:05 am

1 stop23h 39m

Louisville Intl

Sun 2/22

3:33 pm-4:18 pm

2 stops25h 45m

$259

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Wed 2/18

10:26 am-2:38 pm

1 stop27h 12m

Louisville Intl

Sun 2/22

2:26 pm-4:18 pm

2 stops26h 52m

$276

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 3/26

5:15 pm-12:40 am

1 stop6h 25m

Louisville Intl

Sat 3/28

6:40 am-10:30 am

1 stop4h 50m

$299

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Fri 3/13

4:10 pm-9:59 pm

1 stop4h 49m

Louisville Intl

Sun 3/15

8:00 am-1:14 pm

1 stop6h 14m

$299

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 5/7

5:20 am-1:38 pm

1 stop7h 18m

Louisville Intl

Sun 5/10

7:30 pm-12:14 am

1 stop5h 44m

$299

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Thu 5/7

5:20 am-1:38 pm

1 stop7h 18m

Louisville Intl

Mon 5/11

7:20 am-2:57 pm

1 stop8h 37m

$299

San AntonioLouisville

SAT - SDF

SATSDF

San Antonio

Fri 5/8

2:25 pm-9:59 pm

1 stop6h 34m

Louisville Intl

Sun 5/10

5:50 am-11:03 am

1 stop6h 13m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 22 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Louisville flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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 March is currently the most expensive (average of $118). 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.

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 January 29, 2026.
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
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 fly from San Antonio to Louisville in about 23h 39m. The time it takes to get you to your destination can typically vary by up to . The distance between San Antonio and Louisville is about 941 mi.

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

    Currently priced at $123, 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 67% 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 $104. Delta flights start at $118 while deals on Southwest start at $122 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 March is currently the most expensive (average of $118). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$123Average$341FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$411FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$270Average$386FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$277Average$385FlexibilityNo cancel feeOn-time71%

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