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$162+ Cheap flights from San Diego to Louisville (SAN - SDF)

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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SDF
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Louisville Intl are usually found in August or September, booked 11 days in advance, depart on a Saturday or Friday and return on a Wednesday

Find flight deals from San Diego to Louisville

Cheapest flights from San Diego to Louisville
Explore the most affordable flight options available from San Diego to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This American Airlines deal was found by Cheapflights users on 11/4. 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 12/36:15 amSAN - SDF
1 stop10h 49mAmerican Airlines
Wed 12/101:02 pmSDF - SAN
1 stop10h 43mAmerican Airlines
Deal found 11/4$227
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/36:15 amSAN - SDF
1 stop10h 49mAmerican Airlines
Fri 12/57:38 amSDF - SAN
1 stop7h 52mAmerican Airlines
Deal found 11/5$278
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/21:23 pmSAN - SDF
1 stop6h 32mAmerican Airlines
Tue 12/91:02 pmSDF - SAN
1 stop10h 43mAmerican Airlines
Deal found 11/3$305
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Tue 12/212:08 pmSAN - SDF
1 stop6h 49mUnited Airlines
Tue 12/99:00 amSDF - SAN
2 stops9h 04mUnited Airlines
Deal found 11/3$312
This Delta deal was found by Cheapflights users on 11/5. 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 12/62:19 pmSAN - SDF
1 stop6h 40mDelta
Fri 12/126:35 amSDF - SAN
1 stop9h 34mDelta
Deal found 11/5$313
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/311:02 amSAN - SDF
2 stops8h 08mUnited Airlines
Fri 12/53:40 pmSDF - SAN
1 stop7h 16mUnited Airlines
Deal found 11/5$322
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/312:50 pmSAN - SDF
1 stop6h 20mUnited Airlines
Wed 12/109:00 amSDF - SAN
2 stops9h 04mUnited Airlines
Deal found 11/4$326
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/181:13 pmSAN - SDF
1 stop7h 17mAmerican Airlines
Mon 12/223:44 pmSDF - SAN
1 stop8h 18mAmerican Airlines
Deal found 11/5$346
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/136:15 amSAN - SDF
1 stop12h 45mAmerican Airlines
Tue 12/235:00 amSDF - SAN
1 stop9h 05mAmerican Airlines
Deal found 11/5$367
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:50 amSAN - SDF
1 stop7h 55mDelta
Tue 12/910:44 amSDF - SAN
2 stops10h 29mDelta
Deal found 11/3$386
This Southwest deal was found by Cheapflights users on 11/5. 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 12/611:45 amSAN - SDF
1 stop6h 25mSouthwest
Fri 12/126:35 amSDF - SAN
2 stops7h 55mSouthwest
Deal found 11/5$390
This Southwest deal was found by Cheapflights users on 11/5. 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 12/139:15 amSAN - SDF
2 stops8h 55mSouthwest
Tue 12/236:45 amSDF - SAN
1 stop8h 15mSouthwest
Deal found 11/5$391

Cheap flight deals from San Diego to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Louisville (SDF). 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$227
(American Airlines)

One-way from

$162
(American Airlines)

Popular in

October

Cheapest in

August

Average price

$402
Provider with most accurate pricing for San Diego-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Louisville Intl flights.
Search Deals
From San Diego to Louisville Intl
Search Deals
One-way flight from San Diego to Louisville Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Louisville 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 November 6, 2025.
Use the filters below to find and compare flights from San Diego to Louisville that are best for you.

Fly from

San Diego

Fly to

Louisville

Route

Depart

Return

Price

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Wed 12/3

6:15 am-8:04 pm

1 stop10h 49m

Louisville Intl

Wed 12/10

1:02 pm-8:45 pm

1 stop10h 43m

$227

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Wed 12/3

6:15 am-8:04 pm

1 stop10h 49m

Louisville Intl

Fri 12/5

7:38 am-12:30 pm

1 stop7h 52m

$278

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Tue 12/2

1:23 pm-10:55 pm

1 stop6h 32m

Louisville Intl

Tue 12/9

1:02 pm-8:45 pm

1 stop10h 43m

$305

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Sat 12/6

2:19 pm-11:59 pm

1 stop6h 40m

Louisville Intl

Fri 12/12

6:35 am-1:09 pm

1 stop9h 34m

$313

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Wed 12/3

12:50 pm-10:10 pm

1 stop6h 20m

Louisville Intl

Wed 12/10

9:00 am-3:04 pm

2 stops9h 04m

$326

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Sat 12/13

9:15 am-9:10 pm

2 stops8h 55m

Louisville Intl

Tue 12/23

6:45 am-12:00 pm

1 stop8h 15m

$391

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Wed 12/24

9:45 am-6:10 pm

1 stop5h 25m

Louisville Intl

Tue 12/30

7:20 am-8:00 pm

1 stop15h 40m

$392

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Thu 11/20

6:15 am-6:38 pm

1 stop9h 23m

Louisville Intl

Mon 11/24

12:43 pm-8:48 pm

1 stop11h 05m

$398

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Sat 12/6

9:15 am-9:10 pm

2 stops8h 55m

Louisville Intl

Fri 12/12

5:30 pm-10:10 pm

2 stops7h 40m

$406

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

Wed 12/24

11:00 am-10:30 pm

2 stops8h 30m

Louisville Intl

Tue 12/30

5:40 am-9:44 am

1 stop7h 04m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 23 results
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2
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Compare providers for flights from San Diego to Louisville

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 San Diego to Louisville in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 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 San Diego-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Louisville 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 San Diego-Louisville 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 San Diego to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from San Diego 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 San Diego to Louisville

How far ahead should I book a flight from San Diego to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Louisville. Price data was last updated on October 31, 2025.

Booking 11 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Diego to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Diego to Louisville?

Currently, June is the cheapest month in which you can book a flight from San Diego to Louisville (average of $71). Flying from San Diego to Louisville in April is currently the most expensive (average of $270). 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 SAN to SDF?

Find hourly flight availability from San Diego to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

It’s typically best to fly out from San Diego to Louisville in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

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

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

Travelers seeking maximum savings on their San Diego to Louisville flight should consider departing on Monday afternoons 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 Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated November 6, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Diego to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,122 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Diego to Louisville?

    American Airlines, Delta, and United Airlines can get you from San Diego to Louisville in just under 6h 20m. Your travel time can differ by up to 4h 29m. The distance from San Diego to Louisville is about 1800 mi. This flight may include one or multiple stops.

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

    According to our current data, Spirit Airlines ($91), American Airlines ($246), and Delta ($276) offers the cheapest pricing from San Diego to Louisville. You may be able to fly from San Diego to Louisville for 80% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from San Diego to Louisville are American Airlines ($162), United Airlines ($168), and Southwest ($173).

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from San Diego to Louisville (average of $71). Flying from San Diego to Louisville in April is currently the most expensive (average of $270). 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
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 5 airlines flying from San Diego to Louisville

Discover the top 5 airlines that operate flights from San Diego to Louisville. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$91Average$219FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$246Average$435FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$376FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$306Average$543FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$349Average$519FlexibilityNo cancel feeOn-time69%

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