$114+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
oct. 17 — oct. 241
1 adult, Economy
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Find cheap flights from Louisville to San Diego 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 Louisville Intl to San Diego are usually found in August or September, booked 6 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 septiembre 17, 2025.
Round-trip from | $235 (Kiwi.com) |
|---|---|
One-way from | $114 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $396 |
Find flight deals from Louisville to San Diego
Cheapest flights from Louisville to San DiegoExplore 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 septiembre 17, 2025.
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 septiembre 17, 2025.
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/242:57 pmSDF - SAN
1 stop11h 07mMultiple Airlines
dom. 10/264:06 pmSAN - SDF
1 stop18h 56mMultiple Airlines
Deal found 9/16![Multiple Airlines logo]()
$235
This American Airlines deal was found by Cheapflights users on 9/16. 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. 12/101:02 pmSDF - SAN
1 stop10h 43mAmerican Airlines
sáb. 12/136:15 amSAN - SDF
1 stop12h 45mAmerican Airlines
Deal found 9/16![American Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/232:57 pmSDF - SAN
1 stop11h 07mMultiple Airlines
mié. 10/299:00 amSAN - SDF
2 stops26h 02mMultiple Airlines
Deal found 9/16![Multiple Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/286:00 amSDF - SAN
1 stop6h 56mAmerican Airlines
mar. 11/46:19 amSAN - SDF
1 stop11h 00mAmerican Airlines
Deal found 9/16![American Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/312:57 pmSDF - SAN
2 stops28h 01mMultiple Airlines
jue. 11/63:59 pmSAN - SDF
1 stop21h 13mMultiple Airlines
Deal found 9/16![Multiple Airlines logo]()
$285
This American Airlines deal was found by Cheapflights users on 9/16. 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.
jue. 10/307:32 amSDF - SAN
1 stop7h 32mAmerican Airlines
mié. 11/126:19 amSAN - SDF
1 stop13h 36mAmerican Airlines
Deal found 9/16![American Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/319:43 amSDF - SAN
1 stop10h 14mMultiple Airlines
dom. 11/28:30 amSAN - SDF
1 stop26h 32mMultiple Airlines
Deal found 9/15![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3010:14 amSDF - SAN
2 stops16h 20mSpirit Airlines
vie. 10/36:15 amSAN - SDF
1 stop6h 05mSpirit Airlines
Deal found 9/15![Spirit Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/232:57 pmSDF - SAN
1 stop11h 07mMultiple Airlines
mar. 10/282:24 pmSAN - SDF
2 stops24h 31mMultiple Airlines
Deal found 9/16![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/249:43 amSDF - SAN
1 stop9h 49mMultiple Airlines
lun. 10/279:03 pmSAN - SDF
2 stops41h 52mMultiple Airlines
Deal found 9/15![Multiple Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/287:00 amSDF - SAN
1 stop7h 31mUnited Airlines
mar. 11/49:00 amSAN - SDF
2 stops8h 44mUnited Airlines
Deal found 9/16![United Airlines logo]()
$322
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 septiembre 17, 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
jue. 10/30
7:32 am-12:04 pm
1 stop7h 32m
San Diego
mié. 11/12
6:19 am-10:55 pm
1 stop13h 36m
$295
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
dom. 10/19
8:50 pm-11:04 pm
2 stops29h 14m
San Diego
jue. 10/23
3:59 pm-2:02 pm
1 stop19h 03m
$305
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
mar. 10/28
7:00 am-11:31 am
1 stop7h 31m
San Diego
mar. 11/4
9:00 am-8:44 pm
2 stops8h 44m
$322
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
mar. 11/25
6:04 am-12:29 pm
1 stop9h 25m
San Diego
mar. 12/2
6:20 am-9:29 pm
1 stop12h 09m
$325
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
mié. 12/10
7:00 am-11:30 am
1 stop7h 30m
San Diego
sáb. 12/13
11:11 am-10:29 pm
2 stops8h 18m
$339
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
mar. 11/25
5:30 am-10:05 am
1 stop7h 35m
San Diego
mar. 12/2
10:20 am-9:30 pm
2 stops8h 10m
$347
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
sáb. 11/1
10:30 am-2:32 pm
1 stop7h 02m
San Diego
lun. 11/3
10:20 pm-9:50 am
1 stop8h 30m
$351
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
jue. 11/13
5:20 pm-12:35 pm
1 stop22h 15m
San Diego
jue. 11/20
6:25 am-8:49 pm
2 stops35h 24m
$352
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
vie. 10/31
7:55 am-2:32 pm
1 stop9h 37m
San Diego
lun. 11/3
10:30 pm-9:56 am
1 stop8h 26m
$359
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
lun. 11/17
6:00 am-2:15 pm
1 stop11h 15m
San Diego
vie. 11/21
2:39 pm-11:53 pm
1 stop6h 14m
$360
Showing 1-10 of 19 results
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
Prices
More
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 September 12, 2025.
Booking 6 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 septiembre 17, 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.
What’s the top layover airport for flights from Louisville to San Diego?
Share of 1-stop round-trip flights from Louisville to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Phoenix (PHX) – chosen by Cheapflights users on 50% of 1-stop itineraries from Louisville to San Diego on Cheapflights.
What’s the fastest layover option from Louisville to San Diego?
Shortest average travel time for 1-stop one-way flights from Louisville to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 20m.
What’s the fastest layover option from Louisville to San Diego?
Shortest average travel time for 1-stop one-way flights from Louisville to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 20m.
Which airport typically offers the quickest layover for flights from Louisville to San Diego?
Average layover duration for 1-stop one-way flights from Louisville to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 15m.
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 septiembre 17, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Louisville to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
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.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Louisville to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
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 septiembre 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$232 | Average$342 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$274 | Average$528 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$442 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$307 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$346 | Average$512 | FlexibilityNo cancel fee | On-time63% |