$94+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SDF
Jan 3 — Jan 101
1 adult, Economy
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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 November or August, booked 11 days in advance, depart on a Saturday or Friday and return on a Wednesday
Cheap flight deals from San Diego to Louisville
Cheapest flights from San Diego to LouisvilleExplore 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 December 4, 2025.
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 December 4, 2025.
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 amSAN - SDF
1 stop8h 04mAmerican Airlines
Wed 1/76:00 amSDF - SAN
1 stop8h 33mAmerican Airlines
Deal found 12/2![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:11 pmSAN - SDF
1 stop6h 43mUnited Airlines
Wed 1/75:35 amSDF - SAN
2 stops10h 24mUnited Airlines
Deal found 12/2![United Airlines logo]()
$316
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 amSAN - SDF
1 stop8h 04mAmerican Airlines
Tue 1/66:00 amSDF - SAN
1 stop8h 39mAmerican Airlines
Deal found 12/2![American Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 12/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:50 amSAN - SDF
2 stops8h 45mSouthwest
Tue 1/62:30 pmSDF - SAN
1 stop9h 30mSouthwest
Deal found 12/2![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 12/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:30 amSAN - SDF
1 stop7h 30mSouthwest
Tue 1/612:50 pmSDF - SAN
2 stops8h 50mSouthwest
Deal found 12/2![Southwest logo]()
$416
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/3111:00 amSAN - SDF
1 stop8h 24mUnited Airlines
Sun 1/45:40 amSDF - SAN
1 stop7h 04mUnited Airlines
Deal found 12/3![United Airlines logo]()
$467
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/319:50 amSAN - SDF
2 stops9h 04mAmerican Airlines
Sun 1/42:00 pmSDF - SAN
1 stop8h 59mAmerican Airlines
Deal found 12/3![American Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sat 12/2010:30 pmSAN - SDF
1 stop8h 33mUnited Airlines
Mon 1/53:25 pmSDF - SAN
1 stop7h 51mUnited Airlines
Deal found 12/3![United Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 12/1. 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.
Sat 12/279:40 amSAN - SDF
1 stop8h 54mAmerican Airlines
Sat 1/35:00 amSDF - SAN
1 stop9h 05mAmerican Airlines
Deal found 12/1![American Airlines logo]()
$523
Find 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 December 4, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $249 (American Airlines) |
One-way from | $94 (American Airlines) |
Popular in | October |
Cheapest in | November |
Average price | $488 |
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 December 4, 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 12/31
6:15 am-5:19 pm
1 stop8h 04m
Louisville Intl
Wed 1/7
6:00 am-11:33 am
1 stop8h 33m
$271
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Thu 1/8
11:58 am-11:06 pm
1 stop8h 08m
Louisville Intl
Mon 1/12
4:56 pm-8:51 pm
1 stop6h 55m
$277
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Wed 12/31
12:11 pm-9:54 pm
1 stop6h 43m
Louisville Intl
Wed 1/7
5:35 am-12:59 pm
2 stops10h 24m
$316
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Thu 1/8
7:00 am-5:37 pm
1 stop7h 37m
Louisville Intl
Mon 1/12
6:12 pm-10:33 pm
1 stop7h 21m
$317
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Thu 1/22
8:37 pm-10:23 am
2 stops10h 46m
Louisville Intl
Mon 1/26
3:22 pm-11:42 pm
2 stops11h 20m
$327
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Fri 2/13
11:30 am-10:37 pm
1 stop8h 07m
Louisville Intl
Mon 2/16
3:15 pm-8:51 pm
1 stop8h 36m
$376
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Sat 2/7
7:10 am-5:33 pm
1 stop7h 23m
$94
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Wed 12/24
11:52 am-11:03 pm
1 stop8h 11m
$139
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Tue 12/16
7:50 am-6:45 pm
1 stop7h 55m
$184
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Tue 12/16
10:30 am-9:30 pm
2 stops8h 00m
$189
Showing 1-10 of 15 results
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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 November 28, 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 December 4, 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 December 4, 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.
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Overall
8.0
Comfort
8.0
Food
7.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown
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Alternative routes for San Diego to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
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 December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$219 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$246 | Average$430 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$276 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$280 | Average$513 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$306 | Average$526 | FlexibilityNo cancel fee | On-time63% |