$161+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Jul 5 — Jul 121
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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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 June 5, 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 June 5, 2026.
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 8/116:00 am
SDF
- SAN
1 stop8h 07m
Delta
Wed 8/196:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 6/1![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 6/1. 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.
Tue 8/117:05 am
SDF
- SAN
1 stop7h 02m
Delta
Sat 8/156:15 am
SAN
- SDF
1 stop7h 27m
Delta
Deal found 6/1![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 6/1. 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 8/135:25 pm
SDF
- SAN
1 stop7h 51m
Delta
Sat 8/156:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 6/1![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 6/1. 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 8/103:25 pm
SDF
- SAN
1 stop8h 38m
Delta
Wed 8/196:15 am
SAN
- SDF
1 stop7h 45m
Delta
Deal found 6/1![Delta logo]()
$318
This Delta deal was found by Cheapflights users on 6/1. 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 8/107:54 pm
SDF
- SAN
1 stop6h 41m
Delta
Mon 8/1710:17 pm
SAN
- SDF
1 stop8h 37m
Delta
Deal found 6/1![Delta logo]()
$320
This Southwest deal was found by Cheapflights users on 5/31. 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 8/133:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Wed 8/192:10 pm
SAN
- SDF
1 stop5h 50m
Southwest
Deal found 5/31![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 7/286:54 pm
SDF
- SAN
1 stop7h 03m
Delta
Tue 8/46:15 am
SAN
- SDF
1 stop8h 04m
Delta
Deal found 6/2![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/2. 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.
Wed 7/295:35 am
SDF
- SAN
1 stop8h 35m
Southwest
Wed 8/511:10 am
SAN
- SDF
2 stops7h 20m
Southwest
Deal found 6/2![Southwest logo]()
$334
This American Airlines deal was found by Cheapflights users on 6/4. 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 9/810:45 pm
SAN
- SDF
1 stop7h 58m
American Airlines
Deal found 6/4![American Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 6/1. 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 8/144:30 pm
SDF
- SAN
1 stop6h 46m
Delta
Tue 8/182:00 pm
SAN
- SDF
1 stop7h 34m
Delta
Deal found 6/1![Delta logo]()
$346
This Delta deal was found by Cheapflights users on 6/1. 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 8/146:00 am
SDF
- SAN
1 stop8h 07m
Delta
Mon 8/176:25 am
SAN
- SDF
1 stop6h 25m
Delta
Deal found 6/1![Delta logo]()
$348
This Southwest deal was found by Cheapflights users on 6/2. 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 7/287:45 pm
SDF
- SAN
1 stop6h 40m
Southwest
Tue 8/47:25 am
SAN
- SDF
2 stops10h 10m
Southwest
Deal found 6/2![Southwest logo]()
$349
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 June 5, 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 June 5, 2026.
This Southwest deal was found by Cheapflights users on 6/1. 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.
Thu 8/278:30 am
SDF
- SAN
2 stops12h 40m
Southwest
Mon 8/316:20 am
SAN
- SDF
1 stop6h 20m
Southwest
Deal found 6/1![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 6/1. 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 8/216:00 am
SDF
- SAN
1 stop8h 07m
Delta
Tue 8/256:15 am
SAN
- SDF
1 stop8h 04m
Delta
Deal found 6/1![Delta logo]()
$346
This United Airlines deal was found by Cheapflights users on 5/31. 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 8/277:10 am
SDF
- SAN
2 stops13h 16m
United Airlines
Mon 8/317:41 pm
SAN
- SDF
2 stops11h 01m
United Airlines
Deal found 5/31![United Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 6/2. 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.
Thu 8/133:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Mon 8/172:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 6/2![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 6/2. 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.
Thu 7/236:54 pm
SDF
- SAN
1 stop7h 03m
Delta
Tue 7/2810:30 pm
SAN
- SDF
1 stop7h 24m
Delta
Deal found 6/2![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 5/31. 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 9/89:00 am
SDF
- SAN
2 stops11h 28m
United Airlines
Tue 9/158:45 am
SAN
- SDF
2 stops11h 23m
United Airlines
Deal found 5/31![United Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 5/31. 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 7/182:55 pm
SDF
- SAN
1 stop7h 45m
Southwest
Wed 7/226:40 am
SAN
- SDF
1 stop7h 05m
Southwest
Deal found 5/31![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/4. 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 8/2910:23 am
SDF
- SAN
1 stop7h 39m
United Airlines
Tue 9/18:00 am
SAN
- SDF
1 stop8h 05m
United Airlines
Deal found 6/4![United Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 6/2. 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.
Thu 7/236:05 pm
SDF
- SAN
2 stops8h 05m
Southwest
Tue 7/2810:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/2![Southwest logo]()
$428
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated June 5, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated June 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/2. 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.
Wed 7/16:49 am
SDF
- SAN
1 stop6h 54m
Delta
Wed 7/82:18 pm
SAN
- SDF
1 stop7h 08m
Delta
Deal found 6/2![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/46:38 am
SDF
- SAN
2 stops8h 09m
American Airlines
Wed 7/810:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/4![American Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 6/4. 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 7/46:38 am
SDF
- SAN
2 stops8h 09m
American Airlines
Tue 7/712:46 pm
SAN
- SDF
2 stops8h 00m
American Airlines
Deal found 6/4![American Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 6/2. 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 7/145:35 am
SDF
- SAN
2 stops11h 40m
Southwest
Tue 7/216:40 am
SAN
- SDF
1 stop5h 55m
Southwest
Deal found 6/2![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 7/146:00 am
SDF
- SAN
1 stop6h 26m
Delta
Mon 7/2010:30 pm
SAN
- SDF
1 stop8h 59m
Delta
Deal found 6/2![Delta logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/278:24 pm
SDF
- SAN
2 stops44h 44m
Multiple Airlines
Tue 8/412:54 pm
SAN
- SDF
1 stop16h 42m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 7/286:54 pm
SDF
- SAN
1 stop7h 03m
Delta
Tue 8/46:15 am
SAN
- SDF
1 stop8h 04m
Delta
Deal found 6/2![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 6/2. 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.
Tue 7/286:54 pm
SDF
- SAN
1 stop7h 03m
Delta
Thu 8/610:17 pm
SAN
- SDF
1 stop8h 37m
Delta
Deal found 6/2![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 6/2. 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 7/287:45 pm
SDF
- SAN
1 stop6h 40m
Southwest
Tue 8/47:25 am
SAN
- SDF
2 stops10h 10m
Southwest
Deal found 6/2![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 6/2. 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.
Wed 7/295:35 am
SDF
- SAN
1 stop8h 35m
Southwest
Wed 8/511:10 am
SAN
- SDF
2 stops7h 20m
Southwest
Deal found 6/2![Southwest logo]()
$334
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 June 5, 2026.
Search for one-way flight options from Louisville to San Diego. Find affordable one-way fares based on user searches. Data last updated June 5, 2026.
This American Airlines deal was found by Cheapflights users on 6/2. 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 7/87:50 pm
SDF
- SAN
1 stop7h 09m
American Airlines
Deal found 6/2![American Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:10 pm
SDF
- SAN
2 stops24h 36m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$162
This Southwest deal was found by Cheapflights users on 6/4. 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 8/1111:50 am
SDF
- SAN
1 stop8h 05m
Southwest
Deal found 6/4![Southwest logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 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 6/1![Breeze Airways logo]()
$173
This American Airlines deal was found by Cheapflights users on 6/4. 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 8/107:03 am
SDF
- SAN
1 stop9h 04m
American Airlines
Deal found 6/4![American Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Deal found 6/3![Breeze Airways logo]()
$182
This Southwest deal was found by Cheapflights users on 6/4. 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
Deal found 6/4![Southwest logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 8/109:10 pm
SDF
- SAN
3 stops45h 35m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Thu 7/166:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Deal found 6/2![Breeze Airways logo]()
$190
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 June 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Delta) |
One-way from | $161 (American Airlines) |
Popular in | March |
Cheapest in | August |
Average price | $505 |
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 June 5, 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
Thu 8/27
8:30 am-6:10 pm
2 stops12h 40m
San Diego
Mon 8/31
6:20 am-3:40 pm
1 stop6h 20m
$325
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 8/21
6:00 am-11:07 am
1 stop8h 07m
San Diego
Tue 8/25
6:15 am-5:19 pm
1 stop8h 04m
$346
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/13
3:20 pm-9:55 pm
2 stops9h 35m
San Diego
Mon 8/17
2:30 pm-11:05 pm
1 stop5h 35m
$360
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/27
7:10 am-5:26 pm
2 stops13h 16m
San Diego
Mon 8/31
7:41 pm-9:42 am
2 stops11h 01m
$391
Quickest round-trip
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 7/23
6:54 pm-10:57 pm
1 stop7h 03m
San Diego
Tue 7/28
10:30 pm-8:54 am
1 stop7h 24m
$393
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Sat 7/18
2:55 pm-7:40 pm
1 stop7h 45m
San Diego
Wed 7/22
6:40 am-4:45 pm
1 stop7h 05m
$393
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 7/23
6:05 pm-11:10 pm
2 stops8h 05m
San Diego
Tue 7/28
10:40 pm-10:05 am
1 stop8h 25m
$428
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Tue 9/8
9:00 am-5:28 pm
2 stops11h 28m
San Diego
Tue 9/15
8:45 am-11:08 pm
2 stops11h 23m
$429
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Sat 8/29
10:23 am-3:02 pm
1 stop7h 39m
San Diego
Tue 9/1
8:00 am-7:05 pm
1 stop8h 05m
$444
Cheapest one-way
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Tue 8/11
11:50 am-4:55 pm
1 stop8h 05m
$165
Showing 1-10 of 17 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 June.
| 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 $346). Flying from Louisville to San Diego in March is currently the most expensive (average of $567). 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 June 5, 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.
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
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
Chula Vista
National City
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove
Browse thousands of different options on Cheapflights for your next trip
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Louisville and San Diego flights
Browse other Louisville and San Diego flight options. Last updated on June 5, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on June 5, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 5, 2026.
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 June 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$260 | Average$460 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$448 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$282 | Average$422 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$463 | FlexibilityNo cancel fee | On-time63% |