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$130+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 49 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 July 3, 2025.

Round-trip from

$209
(FlightHub)

One-way from

$130
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$376
From Louisville Intl to San Antonio
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One-way flight from Louisville Intl to San Antonio
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Highest demand for flights based on searches. 5% potential increase in price ($21 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 July 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 July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/294:31 pmSDF - SAT
1 stop21h 35mSpirit Airlines
Tue 8/52:11 pmSAT - SDF
1 stop24h 25mSpirit Airlines
Deal found 7/1$209
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Wed 7/239:46 amSDF - SAT
1 stop15h 13mMultiple Airlines
Wed 7/307:52 pmSAT - SDF
2 stops18h 44mMultiple Airlines
Deal found 7/1$244
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:25 pmSDF - SAT
1 stop4h 21mAmerican Airlines
Thu 8/146:00 amSAT - SDF
1 stop4h 45mAmerican Airlines
Deal found 7/2$247
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:25 amSDF - SAT
2 stops6h 30mSouthwest
Thu 8/146:50 amSAT - SDF
1 stop7h 40mSouthwest
Deal found 7/2$252
This Delta deal was found by Cheapflights users on 7/1. 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.
Fri 8/298:10 amSDF - SAT
1 stop4h 50mDelta
Sun 8/315:45 pmSAT - SDF
1 stop5h 11mDelta
Deal found 7/1$307
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/269:31 amSDF - SAT
1 stop8h 20mUnited Airlines
Sat 8/302:25 pmSAT - SDF
1 stop6h 35mUnited Airlines
Deal found 7/2$327

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 July 3, 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

Tue 7/29

4:31 pm-1:06 pm

1 stop21h 35m

San Antonio

Tue 8/5

2:11 pm-3:36 pm

1 stop24h 25m

$209

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 7/23

9:46 am-11:59 pm

1 stop15h 13m

San Antonio

Wed 7/30

7:52 pm-3:36 pm

2 stops18h 44m

$244

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 8/7

6:25 pm-9:46 pm

1 stop4h 21m

San Antonio

Thu 8/14

6:00 am-11:45 am

1 stop4h 45m

$247

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Thu 8/7

6:25 am-11:55 am

2 stops6h 30m

San Antonio

Thu 8/14

6:50 am-3:30 pm

1 stop7h 40m

$252

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Fri 8/29

8:10 am-12:00 pm

1 stop4h 50m

San Antonio

Sun 8/31

5:45 pm-11:56 pm

1 stop5h 11m

$307

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Tue 8/26

9:31 am-4:51 pm

1 stop8h 20m

San Antonio

Sat 8/30

2:25 pm-10:00 pm

1 stop6h 35m

$327

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 7/30

4:31 pm-1:06 pm

1 stop21h 35m

$130

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sat 9/20

7:50 am-1:04 pm

1 stop6h 14m

$134

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Wed 7/30

9:46 am-4:33 pm

3 stops31h 47m

$161

LouisvilleSan Antonio

SDF - SAT

SDFSAT

Louisville Intl

Sat 9/20

9:55 am-7:52 pm

2 stops10h 57m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 12 results
1
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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 June 27, 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 49 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 July 3, 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.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 ($209), American Airlines ($247), and Southwest ($252) offers the cheapest pricing from Louisville to San Antonio. You may be able to fly from Louisville to San Antonio for 43% 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 ($130), Delta ($134), and United Airlines ($174).

  • 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

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Book flights to Louisville if you plan to visit one of these locations
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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$211Average$242FlexibilityNo cancel feeOn-time65%
DeltaCheapest$266Average$359FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$267Average$389FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$296Average$442FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$312Average$391FlexibilityNo cancel feeOn-time63%

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