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$103+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to San Antonio are usually found in August or September, booked 66 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap 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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$225
(Mytrip)

One-way from

$103
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$391
Provider with most accurate pricing for Louisville Intl-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-San Antonio flights.
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From Louisville Intl to San Antonio
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One-way flight from Louisville Intl to San Antonio
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Louisville to San Antonio

Cheapest flights from Louisville to San Antonio
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 May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:07 pmSDF - SAT
1 stop25h 25mSpirit Airlines
Tue 5/201:52 pmSAT - SDF
1 stop22h 20mSpirit Airlines
Deal found 4/30$187
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:05 amSDF - SAT
1 stop6h 50mDelta
Tue 7/88:00 amSAT - SDF
1 stop5h 16mDelta
Deal found 4/29$271
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/162:07 pmSDF - SAT
3 stops39h 57mMultiple Airlines
Tue 5/201:52 pmSAT - SDF
2 stops24h 20mMultiple Airlines
Deal found 4/30$303
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:10 pmSDF - SAT
1 stop6h 20mSouthwest
Mon 9/16:50 amSAT - SDF
1 stop7h 40mSouthwest
Deal found 4/29$319
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:41 pmSDF - SAT
1 stop6h 18mAmerican Airlines
Mon 6/302:20 pmSAT - SDF
1 stop6h 57mAmerican Airlines
Deal found 4/30$324
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:00 amSDF - SAT
2 stops7h 26mUnited Airlines
Mon 9/2212:10 pmSAT - SDF
1 stop9h 48mUnited Airlines
Deal found 4/30$362

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 May 1, 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

Mon 6/2

2:07 pm-12:57 pm

1 stop23h 50m

San Antonio

Thu 6/12

12:59 pm-3:20 pm

1 stop25h 21m

$225

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 5/28

6:30 pm-10:03 pm

1 stop4h 33m

San Antonio

Wed 6/4

6:43 pm-12:23 am

1 stop4h 40m

$271

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 5/28

4:10 pm-10:45 pm

2 stops7h 35m

San Antonio

Wed 6/4

6:35 am-4:25 pm

1 stop8h 50m

$282

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 6/25

7:06 am-11:15 am

1 stop5h 09m

San Antonio

Sat 6/28

6:11 pm-12:31 am

1 stop5h 20m

$284

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 9/17

9:00 am-3:26 pm

2 stops7h 26m

San Antonio

Mon 9/22

12:57 pm-8:28 pm

1 stop6h 31m

$362

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Mon 6/2

3:44 pm-5:04 am

3 stops38h 20m

San Antonio

Fri 6/6

1:27 pm-1:12 pm

3 stops22h 45m

$388

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 5/27

12:58 pm-10:51 pm

2 stops34h 53m

$103

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sun 7/13

3:05 pm-10:08 pm

1 stop8h 03m

$184

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sun 7/13

3:40 pm-11:55 pm

2 stops9h 15m

$219

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 5/13

11:00 am-7:37 pm

2 stops9h 37m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 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 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 April 25, 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 66 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, August is the cheapest month in which you can book a flight from Louisville to San Antonio (average of $295). Flying from Louisville to San Antonio in March is currently the most expensive (average of $376). 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 May 1, 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 18% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Louisville to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Louisville to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Louisville to San Antonio flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 May 1, 2025.
To help decide which airline to fly from Louisville to San Antonio, see what other customers have to say about Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Spirit Airlines
6.3
Okay
7,963 reviews
Southwest
8.0
Very good
4,294 reviews

Overall

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

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

    According to our current data, Spirit Airlines ($225), American Airlines ($271), and Southwest ($282) offers the cheapest pricing from Louisville to San Antonio. You may be able to fly from Louisville to San Antonio for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Louisville to San Antonio one-way?

    The cheapest airlines for a one-way flight from Louisville to San Antonio are Spirit Airlines ($103), Delta ($184), and Southwest ($219).

  • Can I find deals for flights from Louisville to San Antonio that include hotel bookings?

    Yes. In addition to deals on Louisville to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to San Antonio.

  • Can I find deals for business class flights from Louisville to San Antonio?

    Yes. Cheapflights offers flight deals from Louisville to San Antonio 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 Louisville to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Louisville to San Antonio (average of $295). Flying from Louisville to San Antonio in March is currently the most expensive (average of $376). 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
New Braunfels

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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$193Average$237FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$266Average$382FlexibilityNo cancel feeOn-time71%
DeltaCheapest$272Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$447FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$422FlexibilityNo cancel feeOn-time63%

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