$151+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Aug 1 — Aug 81
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to San Diego with Cheapflights
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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
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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 Louisville to San Diego
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Best
Last-minute
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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 July 2, 2026.
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 July 2, 2026.
This Delta deal was found by Cheapflights users on 6/29. 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 8/197:05 am
SDF
- SAN
1 stop8h 28m
Delta
Tue 8/2512:32 pm
SAN
- SDF
1 stop9h 02m
Delta
Deal found 6/29![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/29. 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 8/191:15 pm
SDF
- SAN
2 stops8h 40m
Southwest
Tue 8/257:25 am
SAN
- SDF
1 stop7h 30m
Southwest
Deal found 6/29![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/28. 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 7/287:50 pm
SDF
- SAN
1 stop7h 09m
American Airlines
Tue 8/47:15 am
SAN
- SDF
1 stop8h 43m
American Airlines
Deal found 6/28![American Airlines logo]()
$314
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:55 am
SDF
- SAN
1 stop9h 14m
Delta
Tue 8/411:48 am
SAN
- SDF
1 stop9h 08m
Delta
Deal found 7/2![Delta logo]()
$321
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.
Sat 8/292:55 pm
SDF
- SAN
1 stop7h 55m
Southwest
Thu 9/32:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/1![Southwest logo]()
$324
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/127:25 am
SDF
- SAN
1 stop6h 33m
United Airlines
Sat 9/1911:00 am
SAN
- SDF
2 stops9h 08m
United Airlines
Deal found 6/30![United Airlines logo]()
$326
This American Airlines deal was found by Cheapflights users on 6/30. 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 9/37:30 pm
SDF
- SAN
1 stop7h 29m
American Airlines
Tue 9/86:15 am
SAN
- SDF
1 stop8h 45m
American Airlines
Deal found 6/30![American Airlines logo]()
$329
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.
Mon 8/248:30 am
SDF
- SAN
1 stop10h 45m
Southwest
Thu 8/272:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/1![Southwest logo]()
$332
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.
Thu 8/274:30 pm
SDF
- SAN
1 stop6h 46m
Delta
Mon 8/316:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 7/1![Delta logo]()
$337
Best flights from Louisville to San DiegoDiscover carefully curated flight deals from Louisville to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
Discover carefully curated flight deals from Louisville to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2026.
This Southwest deal was found by Cheapflights users on 6/29. 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 8/1910:50 am
SDF
- SAN
2 stops8h 05m
Southwest
Tue 8/259:35 am
SAN
- SDF
2 stops8h 00m
Southwest
Deal found 6/29![Southwest logo]()
$317
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.
Thu 8/274:30 pm
SDF
- SAN
1 stop6h 46m
Delta
Mon 8/316:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 7/1![Delta logo]()
$337
This United Airlines deal was found by Cheapflights users on 6/29. 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 10/215:15 am
SDF
- SAN
2 stops9h 20m
United Airlines
Mon 10/269:45 pm
SAN
- SDF
1 stop9h 46m
United Airlines
Deal found 6/29![United Airlines logo]()
$412
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.
Mon 8/103:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Sat 8/155:30 pm
SAN
- SDF
2 stops13h 55m
Southwest
Deal found 7/1![Southwest logo]()
$353
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.
Fri 8/71:17 pm
SDF
- SAN
1 stop9h 18m
Delta
Mon 8/1010:17 pm
SAN
- SDF
1 stop8h 37m
Delta
Deal found 7/1![Delta logo]()
$397
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/257:10 am
SDF
- SAN
2 stops10h 40m
United Airlines
Wed 8/2610:13 am
SAN
- SDF
1 stop6h 46m
United Airlines
Deal found 6/29![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 6/28. 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.
Fri 8/73:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Mon 8/101:05 pm
SAN
- SDF
1 stop7h 00m
Southwest
Deal found 6/28![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 6/29. 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 8/611:05 am
SDF
- SAN
1 stop5h 50m
Southwest
Sun 8/910:40 am
SAN
- SDF
2 stops11h 20m
Southwest
Deal found 6/29![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 6/29. 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 9/56:45 am
SDF
- SAN
2 stops8h 20m
Southwest
Sat 9/125:30 pm
SAN
- SDF
2 stops13h 55m
Southwest
Deal found 6/29![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 6/28. 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 8/103:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Thu 8/136:20 am
SAN
- SDF
2 stops8h 00m
Southwest
Deal found 6/28![Southwest logo]()
$407
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated July 2, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated July 2, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/30. 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 7/2112:40 pm
SDF
- SAN
1 stop10h 30m
Southwest
Sat 9/56:20 am
SAN
- SDF
2 stops7h 55m
Southwest
Deal found 6/30![Southwest logo]()
$326
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:55 am
SDF
- SAN
1 stop9h 14m
Delta
Tue 8/411:48 am
SAN
- SDF
1 stop9h 08m
Delta
Deal found 7/2![Delta logo]()
$321
This American Airlines deal was found by Cheapflights users on 6/28. 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 7/287:50 pm
SDF
- SAN
1 stop7h 09m
American Airlines
Tue 8/47:15 am
SAN
- SDF
1 stop8h 43m
American Airlines
Deal found 6/28![American Airlines logo]()
$314
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.
Mon 8/102:34 pm
SDF
- SAN
1 stop6h 40m
Delta
Sat 8/1512:34 pm
SAN
- SDF
1 stop8h 35m
Delta
Deal found 7/1![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 6/29. 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 8/197:05 am
SDF
- SAN
1 stop8h 28m
Delta
Tue 8/2512:32 pm
SAN
- SDF
1 stop9h 02m
Delta
Deal found 6/29![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 6/29. 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 8/191:15 pm
SDF
- SAN
2 stops8h 40m
Southwest
Tue 8/257:25 am
SAN
- SDF
1 stop7h 30m
Southwest
Deal found 6/29![Southwest logo]()
$312
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 am
SDF
- SAN
1 stop10h 45m
Southwest
Thu 8/272:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/2![Southwest logo]()
$332
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.
Thu 8/274:30 pm
SDF
- SAN
1 stop6h 46m
Delta
Mon 8/316:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 7/1![Delta logo]()
$337
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.
Sat 8/292:55 pm
SDF
- SAN
1 stop7h 55m
Southwest
Thu 9/32:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/1![Southwest logo]()
$324
One-way flights from Louisville to San DiegoSearch for one-way flight options from Louisville to San Diego. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
Search for one-way flight options from Louisville to San Diego. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 9/58:46 pm
SDF
- SAN
1 stop17h 38m
Breeze Airways
Deal found 6/29![Breeze Airways logo]()
$151
This Delta deal was found by Cheapflights users on 6/29. 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.
Mon 10/195:45 pm
SDF
- SAN
1 stop8h 30m
Delta
Deal found 6/29![Delta logo]()
$154
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/53:25 pm
SDF
- SAN
2 stops12h 04m
United Airlines
Deal found 6/29![United Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 6/30. 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 7/216:05 am
SDF
- SAN
1 stop6h 25m
Southwest
Deal found 6/30![Southwest logo]()
$161
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.
Tue 9/1510:50 am
SDF
- SAN
2 stops8h 05m
Southwest
Deal found 7/1![Southwest logo]()
$166
This Southwest deal was found by Cheapflights users on 6/29. 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 10/194:35 pm
SDF
- SAN
2 stops9h 50m
Southwest
Deal found 6/29![Southwest logo]()
$174
This United Airlines deal was found by Cheapflights users on 6/30. 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 7/213:25 pm
SDF
- SAN
2 stops11h 29m
United Airlines
Deal found 6/30![United Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Sun 8/96:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Deal found 6/30![Breeze Airways logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 9/58:46 pm
SDF
- SAN
3 stops39h 19m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 10/197:35 pm
SDF
- SAN
3 stops31h 24m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/118:06 pm
SDF
- SAN
1 stop18h 18m
Breeze Airways
Deal found 6/29![Breeze Airways logo]()
$246
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:59 pm
SDF
- SAN
3 stops26h 38m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$248
Find 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 July 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $307 (Delta) |
One-way from | $151 (Kiwi.com) |
Popular in | April |
Cheapest in | August |
Average price | $417 |
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 July 2, 2026.
Use the filters below to find and compare flights from Louisville to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 8/19
10:50 am-3:55 pm
2 stops8h 05m
San Diego
Tue 8/25
9:35 am-8:35 pm
2 stops8h 00m
$317
Quickest round-trip
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/27
4:30 pm-8:16 pm
1 stop6h 46m
San Diego
Mon 8/31
6:15 am-5:00 pm
1 stop7h 45m
$337
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Mon 8/10
3:20 pm-9:55 pm
2 stops9h 35m
San Diego
Sat 8/15
5:30 pm-10:25 am
2 stops13h 55m
$353
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 8/7
1:17 pm-7:35 pm
1 stop9h 18m
San Diego
Mon 8/10
10:17 pm-9:54 am
1 stop8h 37m
$397
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 8/7
3:20 pm-9:55 pm
2 stops9h 35m
San Diego
Mon 8/10
1:05 pm-11:05 pm
1 stop7h 00m
$402
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/6
11:05 am-1:55 pm
1 stop5h 50m
San Diego
Sun 8/9
10:40 am-1:00 am
2 stops11h 20m
$402
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Sat 9/5
6:45 am-12:05 pm
2 stops8h 20m
San Diego
Sat 9/12
5:30 pm-10:25 am
2 stops13h 55m
$402
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Mon 8/10
3:20 pm-9:55 pm
2 stops9h 35m
San Diego
Thu 8/13
6:20 am-5:20 pm
2 stops8h 00m
$407
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 10/21
5:15 am-11:35 am
2 stops9h 20m
San Diego
Mon 10/26
9:45 pm-10:31 am
1 stop9h 46m
$412
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Tue 8/25
7:10 am-2:50 pm
2 stops10h 40m
San Diego
Wed 8/26
10:13 am-7:59 pm
1 stop6h 46m
$412
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Louisville to San Diego
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 Louisville to San Diego in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-San Diego 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 Louisville-San Diego 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 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.
SDF-SAN
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?
Booking 5 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 $328). Flying from Louisville to San Diego in April is currently the most expensive (average of $524). 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.
How much does it cost to fly round-trip from Louisville to San Diego?
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 July 2, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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
National City
Chula Vista
Poway
La Mesa
Coronado
Santee
Julian
Lemon Grove
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Louisville and San Diego flights
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Top 4 airlines flying from Louisville to San Diego
Discover the top 4 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 July 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$446 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$281 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$465 | FlexibilityNo cancel fee | On-time63% |