$137+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SDF
Apr 24 — May 11
Round-trip
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.Cheap flight deals from San Diego to Louisville
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Best
Last-minute
One-way
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 March 25, 2026.
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 March 25, 2026.
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Thu 4/1610:30 pm
SAN
- SDF
1 stop7h 40m
United Airlines
Mon 4/205:00 am
SDF
- SAN
1 stop7h 40m
United Airlines
Deal found 3/23![United Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/1412:10 pm
SAN
- SDF
1 stop6h 49m
United Airlines
Fri 4/173:30 pm
SDF
- SAN
1 stop8h 56m
United Airlines
Deal found 3/23![United Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 3/20. 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.
Thu 5/142:25 pm
SAN
- SDF
1 stop6h 50m
Southwest
Mon 5/1812:15 pm
SDF
- SAN
1 stop10h 55m
Southwest
Deal found 3/20![Southwest logo]()
$333
This American Airlines deal was found by Cheapflights users on 3/24. 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 5/1310:40 pm
SAN
- SDF
1 stop9h 06m
American Airlines
Sun 5/177:55 pm
SDF
- SAN
1 stop7h 01m
American Airlines
Deal found 3/24![American Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/2210:40 pm
SAN
- SDF
1 stop9h 06m
American Airlines
Sun 4/267:33 am
SDF
- SAN
1 stop8h 41m
American Airlines
Deal found 3/24![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 3/23. 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 5/1212:55 pm
SAN
- SDF
1 stop8h 04m
United Airlines
Wed 5/133:37 pm
SDF
- SAN
1 stop8h 35m
United Airlines
Deal found 3/23![United Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Fri 5/1512:17 pm
SAN
- SDF
1 stop6h 24m
American Airlines
Tue 5/196:00 am
SDF
- SAN
1 stop8h 08m
American Airlines
Deal found 3/23![American Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 5/168:20 pm
SAN
- SDF
2 stops10h 25m
Southwest
Sat 5/234:50 pm
SDF
- SAN
1 stop6h 40m
Southwest
Deal found 3/23![Southwest logo]()
$376
This Southwest deal was found by Cheapflights users on 3/23. 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 4/147:10 am
SAN
- SDF
1 stop7h 50m
Southwest
Fri 4/173:40 pm
SDF
- SAN
2 stops7h 20m
Southwest
Deal found 3/23![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 3/19. 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 5/116:30 am
SAN
- SDF
1 stop6h 35m
Southwest
Wed 5/137:00 am
SDF
- SAN
2 stops8h 55m
Southwest
Deal found 3/19![Southwest logo]()
$378
This Southwest deal was found by Cheapflights users on 3/22. 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 5/116:30 am
SAN
- SDF
1 stop6h 35m
Southwest
Fri 5/155:25 pm
SDF
- SAN
1 stop8h 30m
Southwest
Deal found 3/22![Southwest logo]()
$386
Best flights from San Diego to LouisvilleDiscover carefully curated flight deals from San Diego to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2026.
Discover carefully curated flight deals from San Diego to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 25, 2026.
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Mon 5/1110:40 pm
SAN
- SDF
1 stop7h 45m
United Airlines
Wed 5/133:30 pm
SDF
- SAN
1 stop7h 34m
United Airlines
Deal found 3/19![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 3/19. 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 5/116:30 am
SAN
- SDF
1 stop6h 35m
Southwest
Wed 5/137:00 am
SDF
- SAN
2 stops8h 55m
Southwest
Deal found 3/19![Southwest logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/23. 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 5/1212:55 pm
SAN
- SDF
1 stop8h 04m
United Airlines
Wed 5/133:37 pm
SDF
- SAN
1 stop8h 35m
United Airlines
Deal found 3/23![United Airlines logo]()
$373
This Southwest deal was found by Cheapflights users on 3/23. 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.
Thu 5/1410:40 pm
SAN
- SDF
1 stop10h 00m
Southwest
Fri 5/155:25 pm
SDF
- SAN
1 stop8h 30m
Southwest
Deal found 3/23![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 3/22. 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 5/139:35 pm
SAN
- SDF
2 stops9h 20m
Southwest
Sun 5/1712:50 pm
SDF
- SAN
1 stop9h 35m
Southwest
Deal found 3/22![Southwest logo]()
$411
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Thu 4/1611:01 am
SAN
- SDF
2 stops8h 29m
United Airlines
Mon 4/205:00 am
SDF
- SAN
1 stop7h 40m
United Airlines
Deal found 3/23![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Fri 4/1712:10 pm
SAN
- SDF
1 stop6h 49m
United Airlines
Mon 4/205:48 pm
SDF
- SAN
1 stop8h 11m
United Airlines
Deal found 3/19![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 3/19. 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 5/97:00 am
SAN
- SDF
1 stop8h 36m
United Airlines
Wed 5/135:40 am
SDF
- SAN
1 stop7h 02m
United Airlines
Deal found 3/19![United Airlines logo]()
$427
Last-minute flights from San Diego to LouisvilleDiscover last-minute flight deals from San Diego to Louisville. Data last updated March 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Louisville. Data last updated March 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/1412:10 pm
SAN
- SDF
1 stop6h 49m
United Airlines
Fri 4/173:30 pm
SDF
- SAN
1 stop8h 56m
United Airlines
Deal found 3/23![United Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 3/23. 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 4/147:10 am
SAN
- SDF
1 stop7h 50m
Southwest
Fri 4/173:40 pm
SDF
- SAN
2 stops7h 20m
Southwest
Deal found 3/23![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Thu 4/1610:30 pm
SAN
- SDF
1 stop7h 40m
United Airlines
Mon 4/205:00 am
SDF
- SAN
1 stop7h 40m
United Airlines
Deal found 3/23![United Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Fri 4/1712:10 pm
SAN
- SDF
1 stop6h 49m
United Airlines
Mon 4/205:48 pm
SDF
- SAN
1 stop8h 11m
United Airlines
Deal found 3/19![United Airlines logo]()
$425
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/2210:40 pm
SAN
- SDF
1 stop9h 06m
American Airlines
Sun 4/267:33 am
SDF
- SAN
1 stop8h 41m
American Airlines
Deal found 3/24![American Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Thu 4/232:04 pm
SAN
- SDF
1 stop6h 07m
American Airlines
Sun 4/267:33 am
SDF
- SAN
1 stop8h 41m
American Airlines
Deal found 3/24![American Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 3/22. 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.
Sat 4/256:25 am
SAN
- SDF
1 stop9h 20m
Delta
Tue 4/287:25 pm
SDF
- SAN
1 stop7h 13m
Delta
Deal found 3/22![Delta logo]()
$387
This Southwest deal was found by Cheapflights users on 3/24. 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.
Thu 4/302:35 pm
SAN
- SDF
1 stop6h 40m
Southwest
Sat 5/21:45 pm
SDF
- SAN
2 stops8h 00m
Southwest
Deal found 3/24![Southwest logo]()
$427
One-way flights from San Diego to LouisvilleSearch for one-way flight options from San Diego to Louisville. Find affordable one-way fares based on user searches. Data last updated March 25, 2026.
Search for one-way flight options from San Diego to Louisville. Find affordable one-way fares based on user searches. Data last updated March 25, 2026.
This American Airlines deal was found by Cheapflights users on 3/23. 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.
Tue 4/282:04 pm
SAN
- SDF
1 stop6h 07m
American Airlines
Deal found 3/23![American Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 3/23. 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 4/289:35 pm
SAN
- SDF
2 stops9h 15m
Southwest
Deal found 3/23![Southwest logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 3/24. 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.
Sat 5/27:15 am
SAN
- SDF
3 stops25h 15m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$149
This United Airlines deal was found by Cheapflights users on 3/24. 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 5/28:45 pm
SAN
- SDF
1 stop6h 50m
United Airlines
Deal found 3/24![United Airlines logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 3/21. 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.
Wed 5/139:37 am
SAN
- SDF
3 stops54h 21m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$166
This Southwest deal was found by Cheapflights users on 3/20. 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.
Thu 6/412:55 pm
SAN
- SDF
1 stop8h 30m
Southwest
Deal found 3/20![Southwest logo]()
$167
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 4/241:03 pm
SAN
- SDF
1 stop7h 45m
American Airlines
Deal found 3/24![American Airlines logo]()
$192
This United Airlines deal was found by Cheapflights users on 3/22. 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 5/1310:46 am
SAN
- SDF
1 stop8h 44m
United Airlines
Deal found 3/22![United Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 4/248:37 pm
SAN
- SDF
2 stops9h 35m
United Airlines
Deal found 3/24![United Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Tue 4/282:29 pm
SAN
- SDF
3 stops44h 02m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$200
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 March 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $327 (United Airlines) |
One-way from | $137 (American Airlines) |
Popular in | October |
Cheapest in | November |
Average price | $587 |
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 March 25, 2026.
Use the filters below to find and compare flights from San Diego to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Mon 5/11
10:40 pm-9:25 am
1 stop7h 45m
Louisville Intl
Wed 5/13
3:30 pm-8:04 pm
1 stop7h 34m
$327
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Tue 5/12
12:55 pm-11:59 pm
1 stop8h 04m
Louisville Intl
Wed 5/13
3:37 pm-9:12 pm
1 stop8h 35m
$373
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Mon 5/11
6:30 am-4:05 pm
1 stop6h 35m
Louisville Intl
Wed 5/13
7:00 am-12:55 pm
2 stops8h 55m
$378
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Thu 5/14
10:40 pm-11:40 am
1 stop10h 00m
Louisville Intl
Fri 5/15
5:25 pm-10:55 pm
1 stop8h 30m
$391
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Wed 5/13
9:35 pm-9:55 am
2 stops9h 20m
Louisville Intl
Sun 5/17
12:50 pm-7:25 pm
1 stop9h 35m
$411
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Thu 4/16
11:01 am-10:30 pm
2 stops8h 29m
Louisville Intl
Mon 4/20
5:00 am-9:40 am
1 stop7h 40m
$424
Quickest round-trip
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Fri 4/17
12:10 pm-9:59 pm
1 stop6h 49m
Louisville Intl
Mon 4/20
5:48 pm-10:59 pm
1 stop8h 11m
$425
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Sat 5/9
7:00 am-6:36 pm
1 stop8h 36m
Louisville Intl
Wed 5/13
5:40 am-9:42 am
1 stop7h 02m
$427
Cheapest one-way
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Wed 5/13
9:35 pm-9:55 am
2 stops9h 20m
$142
San DiegoLouisville
SAN - SDF
SANSDF
San Diego
Sat 5/2
7:15 am-11:30 am
3 stops25h 15m
$149
Showing 1-10 of 17 resultsSorted by cheapest first
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Diego-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Louisville flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
SAN-SDF
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 March 13, 2026.
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 $67). Flying from San Diego to Louisville in April is currently the most expensive (average of $242). 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.
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 March 25, 2026.
See what other customers who have flown with Southwest,Delta, andAmerican 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
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
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.
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Book flights to Louisville if you plan to visit one of these locationsShepherdsville
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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 March 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$210 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$242 | Average$423 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$255 | Average$492 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$409 | FlexibilityNo cancel fee | On-timeN/A |