$85+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
Jan 3 — Jan 101
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.Cheapflights Tip: The best prices from Louisville Intl to San Antonio are usually found in August or June, booked 86 days in advance, depart on a Saturday or Wednesday and return on a Tuesday
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 December 4, 2025.
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 December 4, 2025.
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/249:20 amSDF - SAT
1 stop8h 39mAmerican Airlines
Wed 1/78:10 amSAT - SDF
1 stop5h 38mAmerican Airlines
Deal found 12/3![American Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/183:18 pmSDF - SAT
1 stop9h 29mUnited Airlines
Thu 1/157:25 amSAT - SDF
1 stop6h 23mUnited Airlines
Deal found 12/3![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 12/3. 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.
Thu 12/187:55 pmSDF - SAT
1 stop4h 50mSouthwest
Thu 1/153:45 pmSAT - SDF
2 stops6h 15mSouthwest
Deal found 12/3![Southwest logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:05 amSDF - SAT
1 stop19h 21mSpirit Airlines
Mon 12/2912:45 pmSAT - SDF
2 stops10h 14mSpirit Airlines
Deal found 12/2![Spirit Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/195:05 amSDF - SAT
1 stop19h 21mSpirit Airlines
Tue 12/232:39 pmSAT - SDF
1 stop7h 10mSpirit Airlines
Deal found 12/3![Spirit Airlines logo]()
$362
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Tue 12/305:49 pmSDF - SAT
1 stop7h 10mAmerican Airlines
Sun 1/43:00 pmSAT - SDF
1 stop5h 34mAmerican Airlines
Deal found 12/3![American Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 12/3. 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.
Mon 12/299:05 pmSDF - SAT
1 stop5h 15mSouthwest
Wed 12/316:40 amSAT - SDF
1 stop4h 45mSouthwest
Deal found 12/3![Southwest logo]()
$407
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 December 4, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $192 (American Airlines) |
One-way from | $85 (American Airlines) |
Popular in | September |
Cheapest in | August |
Average price | $432 |
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 December 4, 2025.
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
Thu 1/8
10:44 am-3:45 pm
1 stop6h 01m
San Antonio
Tue 1/13
11:36 am-5:33 pm
1 stop4h 57m
$192
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Tue 1/6
6:32 pm-10:58 pm
1 stop5h 26m
San Antonio
Thu 1/8
7:00 am-1:43 pm
1 stop5h 43m
$192
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Mon 1/12
3:30 pm-9:21 pm
1 stop6h 51m
San Antonio
Thu 1/15
12:15 pm-7:43 pm
1 stop6h 28m
$215
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Thu 1/22
5:35 am-12:24 pm
1 stop7h 49m
San Antonio
Mon 1/26
4:04 pm-9:59 pm
1 stop4h 55m
$215
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Mon 1/12
12:50 pm-7:05 pm
1 stop7h 15m
San Antonio
Thu 1/15
3:45 pm-11:00 pm
2 stops6h 15m
$220
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Thu 1/22
11:50 am-5:40 pm
2 stops6h 50m
San Antonio
Mon 1/26
2:45 pm-10:10 pm
2 stops6h 25m
$225
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 2/14
7:51 am-2:18 pm
1 stop7h 27m
San Antonio
Fri 2/20
10:22 am-5:34 pm
1 stop6h 12m
$239
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sun 2/1
8:07 am-4:47 pm
1 stop9h 40m
San Antonio
Wed 2/4
9:30 am-6:39 pm
2 stops8h 09m
$247
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Wed 1/28
11:14 am-4:10 pm
1 stop5h 56m
$85
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Wed 1/28
1:55 pm-12:25 pm
3 stops47h 30m
$292
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-San Antonio flight deals on Cheapflights vs. eDreams >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 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 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 November 28, 2025.
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 $61). Flying from Louisville to San Antonio in February is currently the most expensive (average of $130). 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 SDF to SAT?
Find hourly flight availability from Louisville to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.
A simple way to save on the total cost of your ticket is to fly from Louisville to San Antonio in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight at noon.
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 December 4, 2025.
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.
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
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 December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$237 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$236 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$309 | Average$386 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$330 | Average$460 | FlexibilityNo cancel fee | On-time69% |