$167+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
Feb 24 — Mar 31
1 adult, Economy
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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.Cheap flight deals from Louisville to San Antonio
Cheapest flights from Louisville to San AntonioExplore 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 January 25, 2026.
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 January 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 1/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/201:19 pm
SDF
- SAT
1 stop11h 40m
Spirit Airlines
Mon 2/236:00 am
SAT
- SDF
1 stop5h 21m
Spirit Airlines
Deal found 1/24![Spirit Airlines logo]()
$220
This CheapOair deal was found by Cheapflights users on 1/24. 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 2/181:19 pm
SDF
- SAT
1 stop11h 40m
Spirit Airlines
Wed 4/1510:26 am
SAT
- SDF
1 stop27h 12m
Spirit Airlines
Deal found 1/24![Spirit Airlines logo]()
$224
This CheapOair deal was found by Cheapflights users on 1/24. 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 2/251:19 pm
SDF
- SAT
1 stop11h 40m
Spirit Airlines
Fri 2/2710:26 am
SAT
- SDF
1 stop23h 39m
Spirit Airlines
Deal found 1/24![Spirit Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/201:19 pm
SDF
- SAT
1 stop11h 40m
Multiple Airlines
Mon 2/235:04 pm
SAT
- SDF
2 stops42h 17m
Multiple Airlines
Deal found 1/24![Multiple Airlines logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/251:19 pm
SDF
- SAT
1 stop11h 40m
Multiple Airlines
Fri 2/275:04 pm
SAT
- SDF
2 stops17h 01m
Multiple Airlines
Deal found 1/24![Multiple Airlines logo]()
$266
This CheapOair deal was found by Cheapflights users on 1/23. 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 3/13:33 pm
SDF
- SAT
1 stop18h 57m
Spirit Airlines
Mon 3/910:26 am
SAT
- SDF
1 stop27h 12m
Spirit Airlines
Deal found 1/23![Spirit Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 1/23. 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.
Sat 2/2112:00 pm
SDF
- SAT
1 stop22h 30m
Multiple Airlines
Thu 2/2610:26 am
SAT
- SDF
1 stop21h 14m
Multiple Airlines
Deal found 1/23![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 1/23. 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.
Sun 3/13:33 pm
SDF
- SAT
2 stops25h 47m
Multiple Airlines
Mon 3/910:26 am
SAT
- SDF
1 stop27h 12m
Multiple Airlines
Deal found 1/23![Multiple Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 1/23. 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.
Sat 2/1412:00 pm
SDF
- SAT
1 stop22h 30m
Multiple Airlines
Thu 2/1910:26 am
SAT
- SDF
1 stop21h 14m
Multiple Airlines
Deal found 1/23![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 1/22. 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 3/41:19 pm
SDF
- SAT
1 stop11h 40m
Multiple Airlines
Sun 3/810:26 am
SAT
- SDF
1 stop21h 14m
Multiple Airlines
Deal found 1/22![Multiple Airlines logo]()
$296
Find 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 January 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $220 (Cheapflightsfares) |
One-way from | $167 (American Airlines) |
Popular in | September |
Cheapest in | August |
Average price | $467 |
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 January 25, 2026.
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
Wed 2/18
1:19 pm-11:59 pm
1 stop11h 40m
San Antonio
Wed 4/15
10:26 am-2:38 pm
1 stop27h 12m
$228
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Fri 2/20
1:19 pm-11:59 pm
1 stop11h 40m
San Antonio
Mon 2/23
5:04 pm-12:21 pm
2 stops42h 17m
$256
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sun 3/1
3:33 pm-9:30 am
1 stop18h 57m
San Antonio
Mon 3/9
10:26 am-2:38 pm
1 stop27h 12m
$276
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Wed 3/4
1:19 pm-11:59 pm
1 stop11h 40m
San Antonio
Sun 3/8
10:26 am-8:40 am
1 stop21h 14m
$296
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 2/21
12:00 pm-4:19 pm
2 stops29h 19m
San Antonio
Thu 2/26
10:26 am-8:40 am
1 stop21h 14m
$298
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 2/21
12:00 pm-9:30 am
1 stop22h 30m
San Antonio
Sun 2/22
5:04 pm-8:40 am
2 stops14h 36m
$321
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Tue 2/17
6:50 pm-11:55 pm
1 stop6h 05m
San Antonio
Thu 2/19
5:00 am-10:04 am
1 stop4h 04m
$325
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sun 3/1
3:33 pm-4:20 pm
2 stops25h 47m
San Antonio
Sun 3/8
10:26 am-8:40 am
1 stop21h 14m
$329
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 4/18
8:10 am-12:59 pm
1 stop5h 49m
San Antonio
Thu 4/23
5:10 am-2:30 pm
1 stop8h 20m
$333
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 4/11
5:55 pm-10:42 pm
1 stop5h 47m
San Antonio
Thu 4/16
5:10 am-2:29 pm
1 stop8h 19m
$333
Showing 1-10 of 20 results
Compare providers for flights from Louisville to San Antonio
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 Louisville to San Antonio in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-San Antonio flights, Cheapflights users trust Expedia the most. Expedia 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 Louisville-San Antonio 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 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 January 23, 2026.
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 40 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, October is the cheapest month in which you can book a flight from Louisville to San Antonio (average of $60). Flying from Louisville to San Antonio in March is currently the most expensive (average of $106). 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 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 January 25, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Louisville to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Alternative routes for Louisville to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
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 January 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$232 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$148 | Average$360 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$283 | Average$377 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$382 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$323 | Average$465 | FlexibilityNo cancel fee | On-time69% |