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$153+ Cheap flights from Louisville to San Diego (SDF - SAN)

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to San Diego are usually found in August or January, booked 44 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Louisville to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to San Diego (SAN). 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 June 12, 2025.

Round-trip from

$187
(Mytrip)

One-way from

$153
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$496
From Louisville Intl to San Diego
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One-way flight from Louisville Intl to San Diego
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Louisville to San Diego

Cheapest flights from Louisville to San Diego
Explore the most affordable flight options available from Louisville to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

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.
Thu 6/267:40 pmSDF - SAN
2 stops14h 33mSpirit Airlines
Mon 6/305:50 pmSAN - SDF
2 stops21h 45mSpirit Airlines
Deal found 6/11$187
This Mytrip deal was found by Cheapflights users on 6/9. 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 7/94:31 pmSDF - SAN
2 stops20h 24mMultiple Airlines
Sun 7/136:15 amSAN - SDF
2 stops27h 57mMultiple Airlines
Deal found 6/9$296
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/222:59 pmSDF - SAN
1 stop9h 36mDelta
Mon 10/2710:30 pmSAN - SDF
1 stop8h 24mDelta
Deal found 6/11$307
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/199:31 amSDF - SAN
1 stop6h 26mUnited Airlines
Tue 8/2610:54 amSAN - SDF
2 stops8h 36mUnited Airlines
Deal found 6/10$312
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.
Wed 10/2211:55 amSDF - SAN
2 stops9h 15mSouthwest
Mon 10/276:30 amSAN - SDF
1 stop6h 30mSouthwest
Deal found 6/11$327
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:12 amSDF - SAN
1 stop7h 30mAmerican Airlines
Wed 7/168:18 amSAN - SDF
1 stop8h 32mAmerican Airlines
Deal found 6/11$363
This Sun Country Air 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/138:22 pmSDF - SAN
1 stop23h 39mSun Country Air
Sun 6/157:24 amSAN - SDF
1 stop24h 15mSun Country Air
Deal found 6/10$585

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville to San Diego 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 June 12, 2025.
Use the filters below to find and compare flights from Louisville to San Diego that are best for you.

Fly from

Louisville

Fly to

San Diego

Route

Depart

Return

Price

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 6/26

7:40 pm-7:13 am

2 stops14h 33m

San Diego

Mon 6/30

5:50 pm-6:35 pm

2 stops21h 45m

$187

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Wed 7/9

4:31 pm-9:55 am

2 stops20h 24m

San Diego

Sun 7/13

6:15 am-1:12 pm

2 stops27h 57m

$296

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Wed 10/22

2:59 pm-9:35 pm

1 stop9h 36m

San Diego

Mon 10/27

10:30 pm-9:54 am

1 stop8h 24m

$307

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Tue 8/19

9:31 am-12:57 pm

1 stop6h 26m

San Diego

Tue 8/26

10:54 am-10:30 pm

2 stops8h 36m

$312

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Wed 10/22

11:55 am-6:10 pm

2 stops9h 15m

San Diego

Mon 10/27

6:30 am-4:00 pm

1 stop6h 30m

$327

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Wed 7/2

6:12 am-10:42 am

1 stop7h 30m

San Diego

Wed 7/16

8:18 am-7:50 pm

1 stop8h 32m

$363

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Sun 7/6

2:03 pm-12:05 am

2 stops13h 02m

San Diego

Sun 7/13

8:45 pm-6:20 pm

2 stops18h 35m

$647

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Fri 7/4

4:17 pm-11:29 pm

2 stops34h 12m

$153

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Tue 11/18

7:30 am-11:31 am

1 stop7h 01m

$154

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 7/3

2:30 pm-11:59 pm

1 stop12h 29m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
1
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Best time to book a flight from Louisville to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to San Diego. Price data was last updated on June 9, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to San Diego. 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 Louisville to San Diego?

Currently, August is the cheapest month in which you can book a flight from Louisville to San Diego (average of $286). Flying from Louisville to San Diego in March is currently the most expensive (average of $366). 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 SAN?

Find hourly flight availability from Louisville to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from Louisville to San Diego in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight at noon.

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

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

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

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Louisville to San Diego, such as Breeze Airways, Alaska Airlines and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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!
Alaska Airlines
8.0
Very good
10,000 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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!
Southwest
8.0
Very good
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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!
Delta
8.0
Very good
7,946 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Crew

8.8

Overall

8.1

Food

6.7

Comfort

8.2

Entertainment

6.6

Boarding

8.3

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 Louisville to San Diego. 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 Diego round-trip?

    Cheapflights users have booked flights from Louisville to San Diego round-trip from $187. Other airlines that can offer you cheap pricing are United Airlines, from $307, and Southwest, from $347. Users have found that Spirit Airlines is 58% cheaper than the other options available to this destination.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $153. Users have also found prices from $154 and $209 on United Airlines and American Airlines, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to San Diego (average of $286). Flying from Louisville to San Diego in March is currently the most expensive (average of $366). 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
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Top 5 airlines flying from Louisville to San Diego

Discover the top 5 airlines that operate flights from Louisville to San Diego. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$172Average$295FlexibilityNo cancel feeOn-time65%
DeltaCheapest$281Average$446FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$311Average$432FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$362Average$477FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$381Average$525FlexibilityNo cancel feeOn-time63%

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