$149+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
Apr 26 — May 31
Round-trip
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
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Best
Last-minute
One-way
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 March 27, 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 March 27, 2026.
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 6/26:05 am
SDF
- SAT
1 stop6h 40m
Delta
Tue 6/95:10 am
SAT
- SDF
1 stop7h 29m
Delta
Deal found 3/25![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:20 am
SDF
- SAT
1 stop6h 04m
United Airlines
Tue 4/285:50 pm
SAT
- SDF
1 stop5h 09m
United Airlines
Deal found 3/24![United Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:55 am
SDF
- SAT
2 stops6h 30m
Southwest
Tue 4/281:25 pm
SAT
- SDF
1 stop8h 05m
Southwest
Deal found 3/24![Southwest logo]()
$296
This Cheapflightsfares deal was found by Cheapflights users on 3/25. 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 5/156:06 pm
SDF
- SAT
1 stop6h 53m
Spirit Airlines
Mon 5/186:07 am
SAT
- SDF
1 stop9h 57m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$298
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:09 pm
SDF
- SAT
1 stop25h 18m
Spirit Airlines
Fri 4/176:00 am
SAT
- SDF
1 stop10h 04m
Spirit Airlines
Deal found 3/22![Spirit Airlines logo]()
$302
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:33 am
SDF
- SAT
1 stop6h 43m
Spirit Airlines
Thu 5/75:26 pm
SAT
- SDF
1 stop15h 02m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$307
This CheapOair deal was found by Cheapflights users on 3/25. 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 5/1510:33 am
SDF
- SAT
1 stop6h 43m
Spirit Airlines
Sun 5/175:26 pm
SAT
- SDF
1 stop15h 02m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$310
This Cheapflightsfares deal was found by Cheapflights users on 3/26. 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.
Sun 4/196:06 pm
SDF
- SAT
1 stop6h 45m
Spirit Airlines
Fri 4/246:00 am
SAT
- SDF
1 stop10h 04m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 3/25. 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.
Sat 5/306:00 am
SDF
- SAT
1 stop6h 03m
Delta
Wed 6/105:10 am
SAT
- SDF
1 stop7h 29m
Delta
Deal found 3/25![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Thu 5/149:43 am
SDF
- SAT
1 stop8h 09m
American Airlines
Sat 5/165:00 am
SAT
- SDF
1 stop4h 15m
American Airlines
Deal found 3/25![American Airlines logo]()
$317
Best flights from Louisville to San AntonioDiscover carefully curated flight deals from Louisville to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
Discover carefully curated flight deals from Louisville to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 6/15:47 pm
SDF
- SAT
1 stop5h 44m
Delta
Tue 6/25:00 pm
SAT
- SDF
1 stop6h 25m
Delta
Deal found 3/25![Delta logo]()
$315
This Southwest deal was found by Cheapflights users on 3/26. 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 5/56:20 am
SDF
- SAT
1 stop7h 30m
Southwest
Fri 5/84:20 pm
SAT
- SDF
1 stop6h 55m
Southwest
Deal found 3/26![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Fri 5/155:40 am
SDF
- SAT
2 stops10h 59m
United Airlines
Mon 5/185:49 pm
SAT
- SDF
1 stop5h 07m
United Airlines
Deal found 3/25![United Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 3/26. 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 4/118:40 am
SDF
- SAT
2 stops8h 05m
Southwest
Wed 4/157:25 am
SAT
- SDF
2 stops6h 40m
Southwest
Deal found 3/26![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/155:23 pm
SDF
- SAT
1 stop5h 58m
Delta
Thu 6/186:19 pm
SAT
- SDF
1 stop5h 13m
Delta
Deal found 3/22![Delta logo]()
$443
This Southwest deal was found by Cheapflights users on 3/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:25 pm
SDF
- SAT
2 stops6h 30m
Southwest
Fri 6/2611:45 am
SAT
- SDF
1 stop4h 10m
Southwest
Deal found 3/22![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:35 am
SDF
- SAT
1 stop7h 36m
United Airlines
Mon 8/1712:07 pm
SAT
- SDF
1 stop6h 12m
United Airlines
Deal found 3/23![United Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 3/25. 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 5/316:00 am
SDF
- SAT
1 stop4h 52m
Delta
Sun 6/76:19 pm
SAT
- SDF
1 stop5h 13m
Delta
Deal found 3/25![Delta logo]()
$443
This Southwest deal was found by Cheapflights users on 3/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:45 am
SDF
- SAT
1 stop7h 30m
Southwest
Sat 5/911:50 am
SAT
- SDF
1 stop4h 55m
Southwest
Deal found 3/23![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 3/25. 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 4/1910:25 am
SDF
- SAT
1 stop7h 30m
Southwest
Fri 4/242:40 pm
SAT
- SDF
2 stops8h 05m
Southwest
Deal found 3/25![Southwest logo]()
$422
Last-minute flights from Louisville to San AntonioDiscover last-minute flight deals from Louisville to San Antonio. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Antonio. Data last updated March 27, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 3/26. 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 4/114:50 pm
SDF
- SAT
1 stop5h 15m
Southwest
Wed 4/152:55 pm
SAT
- SDF
1 stop6h 20m
Southwest
Deal found 3/26![Southwest logo]()
$400
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:09 pm
SDF
- SAT
1 stop25h 18m
Spirit Airlines
Fri 4/176:00 am
SAT
- SDF
1 stop10h 04m
Spirit Airlines
Deal found 3/22![Spirit Airlines logo]()
$302
This Cheapflightsfares deal was found by Cheapflights users on 3/26. 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.
Sun 4/196:06 pm
SDF
- SAT
1 stop6h 45m
Spirit Airlines
Fri 4/246:00 am
SAT
- SDF
1 stop10h 04m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/199:12 pm
SDF
- SAT
2 stops18h 03m
Multiple Airlines
Fri 4/246:00 am
SAT
- SDF
1 stop11h 58m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:20 am
SDF
- SAT
1 stop6h 04m
United Airlines
Tue 4/285:50 pm
SAT
- SDF
1 stop5h 09m
United Airlines
Deal found 3/24![United Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:55 am
SDF
- SAT
2 stops6h 30m
Southwest
Tue 4/281:25 pm
SAT
- SDF
1 stop8h 05m
Southwest
Deal found 3/24![Southwest logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Thu 4/232:26 pm
SDF
- SAT
2 stops34h 25m
Multiple Airlines
Thu 4/306:00 am
SAT
- SDF
1 stop10h 04m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$409
One-way flights from Louisville to San AntonioSearch for one-way flight options from Louisville to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
Search for one-way flight options from Louisville to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 5/156:06 pm
SDF
- SAT
1 stop6h 53m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 6/138:06 pm
SDF
- SAT
1 stop14h 09m
Breeze Airways
Deal found 3/23![Breeze Airways logo]()
$184
This CheapOair deal was found by Cheapflights users on 3/24. 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.
Tue 4/712:42 pm
SDF
- SAT
1 stop21h 45m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$201
This CheapOair deal was found by Cheapflights users on 3/25. 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 4/812:09 pm
SDF
- SAT
1 stop25h 18m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$208
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:25 pm
SDF
- SAT
2 stops6h 35m
Southwest
Deal found 3/24![Southwest logo]()
$209
This Southwest deal was found by Cheapflights users on 3/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:05 pm
SDF
- SAT
2 stops6h 20m
Southwest
Deal found 3/23![Southwest logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Tue 4/712:42 pm
SDF
- SAT
3 stops24h 45m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$240
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:00 am
SDF
- SAT
2 stops8h 43m
United Airlines
Deal found 3/24![United Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/112:09 pm
SDF
- SAT
2 stops23h 34m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 3/24. 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 4/112:09 pm
SDF
- SAT
1 stop25h 18m
Spirit Airlines
Deal found 3/24![Spirit Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/25:00 am
SDF
- SAT
1 stop8h 24m
United Airlines
Deal found 3/25![United Airlines logo]()
$359
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 March 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $285 (Delta) |
One-way from | $149 (Cheapflightsfares) |
Popular in | September |
Cheapest in | August |
Average price | $390 |
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 March 27, 2026.
Use the filters below to find and compare flights from Louisville to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Mon 6/1
5:47 pm-10:31 pm
1 stop5h 44m
San Antonio
Tue 6/2
5:00 pm-12:25 am
1 stop6h 25m
$315
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Tue 5/5
6:20 am-12:50 pm
1 stop7h 30m
San Antonio
Fri 5/8
4:20 pm-12:15 am
1 stop6h 55m
$317
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sat 4/11
8:40 am-3:45 pm
2 stops8h 05m
San Antonio
Wed 4/15
7:25 am-3:05 pm
2 stops6h 40m
$410
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Tue 6/23
5:25 pm-10:55 pm
2 stops6h 30m
San Antonio
Fri 6/26
11:45 am-4:55 pm
1 stop4h 10m
$412
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Mon 5/4
5:45 am-12:15 pm
1 stop7h 30m
San Antonio
Sat 5/9
11:50 am-5:45 pm
1 stop4h 55m
$413
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sun 4/19
10:25 am-4:55 pm
1 stop7h 30m
San Antonio
Fri 4/24
2:40 pm-11:45 pm
2 stops8h 05m
$422
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Fri 5/15
5:40 am-3:39 pm
2 stops10h 59m
San Antonio
Mon 5/18
5:49 pm-11:56 pm
1 stop5h 07m
$429
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Mon 6/15
5:23 pm-10:21 pm
1 stop5h 58m
San Antonio
Thu 6/18
6:19 pm-12:32 am
1 stop5h 13m
$443
Quickest round-trip
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Sun 5/31
6:00 am-9:52 am
1 stop4h 52m
San Antonio
Sun 6/7
6:19 pm-12:32 am
1 stop5h 13m
$443
LouisvilleSan Antonio
SDF - SAT
SDFSAT
Louisville Intl
Fri 8/14
5:35 am-12:11 pm
1 stop7h 36m
San Antonio
Mon 8/17
12:07 pm-7:19 pm
1 stop6h 12m
$487
Showing 1-10 of 17 resultsSorted by cheapest first
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| 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 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 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 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.
SDF-SAT
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 March 13, 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 $142). 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.
How much does it cost to fly round-trip from Louisville to San Antonio?
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 March 27, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
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Top 4 airlines flying from Louisville to San Antonio
Discover the top 4 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 March 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$354 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$283 | Average$378 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$381 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$319 | Average$445 | FlexibilityNo cancel fee | On-time69% |