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$86+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SDF
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Louisville Intl are usually found in August or February, booked 11 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 julio 2, 2025.

Round-trip from

$192
(Mytrip)

One-way from

$86
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$416
From San Diego to Louisville Intl
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One-way flight from San Diego to Louisville Intl
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Highest demand for flights based on searches. 9% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 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 julio 2, 2025.

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.
mié. 7/167:00 pmSAN - SDF
2 stops17h 36mSpirit Airlines
vie. 7/186:26 pmSDF - SAN
2 stops18h 29mSpirit Airlines
Deal found 7/1$192
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/88:18 amSAN - SDF
1 stop9h 01mAmerican Airlines
mié. 10/296:45 amSDF - SAN
1 stop10h 25mAmerican Airlines
Deal found 7/1$285
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.
lun. 10/610:40 pmSAN - SDF
1 stop7h 08mDelta
mar. 10/2812:40 pmSDF - SAN
1 stop7h 48mDelta
Deal found 7/1$307
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/812:00 pmSAN - SDF
1 stop6h 54mUnited Airlines
mié. 10/2911:10 amSDF - SAN
2 stops9h 19mUnited Airlines
Deal found 7/1$312
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/171:17 pmSAN - SDF
2 stops19h 17mMultiple Airlines
sáb. 8/237:58 pmSDF - SAN
3 stops30h 39mMultiple Airlines
Deal found 7/2$350
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/810:30 amSAN - SDF
2 stops11h 00mSouthwest
mié. 10/2911:55 amSDF - SAN
2 stops9h 15mSouthwest
Deal found 7/1$352

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 julio 2, 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

mié. 7/16

7:00 pm-3:36 pm

2 stops17h 36m

Louisville Intl

vie. 7/18

6:26 pm-9:55 am

2 stops18h 29m

$192

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 10/8

8:18 am-8:19 pm

1 stop9h 01m

Louisville Intl

mié. 10/29

6:45 am-2:10 pm

1 stop10h 25m

$285

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

lun. 10/6

10:40 pm-8:48 am

1 stop7h 08m

Louisville Intl

mar. 10/28

12:40 pm-5:28 pm

1 stop7h 48m

$307

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 10/8

12:00 pm-9:54 pm

1 stop6h 54m

Louisville Intl

mié. 10/29

11:10 am-5:29 pm

2 stops9h 19m

$312

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

dom. 8/17

1:17 pm-11:34 am

2 stops19h 17m

Louisville Intl

sáb. 8/23

7:58 pm-11:37 pm

3 stops30h 39m

$350

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 10/8

10:30 am-12:30 am

2 stops11h 00m

Louisville Intl

mié. 10/29

11:55 am-6:10 pm

2 stops9h 15m

$352

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 7/15

3:57 pm-3:36 pm

2 stops20h 39m

$86

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mar. 7/15

7:15 am-7:37 pm

1 stop9h 22m

$259

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 7/23

12:45 pm-10:45 pm

1 stop7h 00m

$284

San DiegoLouisville

SAN - SDF

SANSDF

San Diego

mié. 7/23

7:05 pm-9:19 am

2 stops11h 14m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 11 results
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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 27, 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, 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 julio 2, 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.

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 julio 2, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

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 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 ($192), American Airlines ($285), and Delta ($307) 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 ($86), American Airlines ($259), and United Airlines ($284).

  • 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

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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 julio 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$255Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$441FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$366Average$566FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$376Average$553FlexibilityNo cancel feeOn-time63%

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