Louisville

$121+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SDF
jun. 17 — jun. 241
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Louisville 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 San Diego to Louisville Intl are usually found in August or February, booked 29 days in advance, depart on a Saturday or Friday and return on a Wednesday

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 junio 12, 2025.

Round-trip from

$195
(Mytrip)

One-way from

$121
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$442
From San Diego to Louisville Intl
One-way flight from San Diego to Louisville Intl
Highest demand for flights based on searches. 8% potential increase in price ($41 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 junio 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. 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.
vie. 6/276:15 amSAN - SDF
2 stops30h 07mSpirit Airlines
mar. 7/17:40 pmSDF - SAN
2 stops25h 46mSpirit Airlines
Deal found 6/12$195
This Mytrip deal was found by Cheapflights users on 6/11. 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.
mié. 7/93:57 pmSAN - SDF
2 stops20h 39mMultiple Airlines
mié. 7/169:46 amSDF - SAN
2 stops27h 09mMultiple Airlines
Deal found 6/11$253
This Southwest deal was found by Cheapflights users on 6/11. 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.
mié. 8/63:35 pmSAN - SDF
1 stop5h 50mSouthwest
mié. 8/203:20 pmSDF - SAN
1 stop6h 25mSouthwest
Deal found 6/11$307
This United Airlines deal was found by Cheapflights users on 6/11. 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.
vie. 8/1510:15 amSAN - SDF
1 stop8h 36mUnited Airlines
lun. 8/183:39 pmSDF - SAN
1 stop7h 22mUnited Airlines
Deal found 6/11$342
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 7/3010:39 pmSAN - SDF
1 stop9h 46mAmerican Airlines
jue. 8/76:10 amSDF - SAN
1 stop7h 29mAmerican Airlines
Deal found 6/10$343
This Delta deal was found by Cheapflights users on 6/12. 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.
mar. 7/226:15 amSAN - SDF
1 stop7h 33mDelta
lun. 7/285:53 pmSDF - SAN
1 stop8h 28mDelta
Deal found 6/12$398
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/238:50 pmSAN - SDF
2 stops19h 50mAlaska Airlines
vie. 1/212:08 pmSDF - SAN
2 stops10h 58mAlaska Airlines
Deal found 6/10$577
This KAYAK deal was found by Cheapflights users on 6/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/1612:21 pmSAN - SDF
3 stops41h 31mBreeze Airways
vie. 7/188:35 pmSDF - SAN
3 stops42h 21mBreeze Airways
Deal found 6/12$1,122

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 junio 12, 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

vie. 6/27

6:15 am-3:22 pm

2 stops30h 07m

Louisville Intl

mar. 7/1

7:40 pm-6:26 pm

2 stops25h 46m

$195

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 7/9

3:57 pm-3:36 pm

2 stops20h 39m

Louisville Intl

mié. 7/16

9:46 am-9:55 am

2 stops27h 09m

$253

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 8/6

3:35 pm-12:25 am

1 stop5h 50m

Louisville Intl

mié. 8/20

3:20 pm-6:45 pm

1 stop6h 25m

$307

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

vie. 8/15

10:15 am-9:51 pm

1 stop8h 36m

Louisville Intl

lun. 8/18

3:39 pm-8:01 pm

1 stop7h 22m

$342

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 7/30

10:39 pm-11:25 am

1 stop9h 46m

Louisville Intl

jue. 8/7

6:10 am-10:39 am

1 stop7h 29m

$343

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 7/22

6:15 am-4:48 pm

1 stop7h 33m

Louisville Intl

lun. 7/28

5:53 pm-11:21 pm

1 stop8h 28m

$398

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 7/16

12:21 pm-8:52 am

3 stops41h 31m

Louisville Intl

vie. 7/18

8:35 pm-11:56 am

3 stops42h 21m

$1,122

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 7/1

6:15 am-11:38 pm

2 stops38h 23m

$121

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 7/1

9:40 pm-12:21 pm

1 stop11h 41m

$206

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 6/17

6:15 am-8:44 am

2 stops23h 29m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
2

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 June 9, 2025.

Booking 29 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, January is the cheapest month in which you can book a flight from San Diego to Louisville (average of $299). Flying from San Diego to Louisville in April is currently the most expensive (average of $369). 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 junio 12, 2025.

It’s typically best to fly out from San Diego to Louisville in the evening. Doing so could potentially save you 30% 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 Thursday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Louisville by month

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

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

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

If weather is an important factor for your trip to Louisville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 junio 12, 2025.
See what other customers who have flown with Breeze Airways, Southwest and Delta from San Diego to Louisville have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
8.0
Very good

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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

    According to our current data, Spirit Airlines ($195), Southwest ($307), and United Airlines ($342) offers the cheapest pricing from San Diego to Louisville. You may be able to fly from San Diego to Louisville for 57% 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 Spirit Airlines ($121), United Airlines ($206), and American Airlines ($364).

  • 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, January is the cheapest month in which you can book a flight from San Diego to Louisville (average of $299). Flying from San Diego to Louisville in April is currently the most expensive (average of $369). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Diego to Louisville

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from San Diego to Louisville

Discover the top 4 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$255Average$415FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$311Average$440FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$366Average$523FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$376Average$553FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.