$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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Sep 28 — Oct 51
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to San Diego with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 August 29, 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 August 29, 2026.
This Southwest deal was found by Cheapflights users on 8/25. 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 9/95:30 am -
1 stop9h 00m
Fri 9/112:30 pm -
1 stop5h 40m
Deal found 8/25![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 8/27. 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 11/237:00 am -
1 stop6h 55m
Wed 12/212:31 pm -
1 stop7h 31m
Deal found 8/27![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 8/25. 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 9/910:50 am -
2 stops10h 30m
Thu 9/102:30 pm -
1 stop5h 40m
Deal found 8/25![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 8/25. 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 9/912:10 pm -
2 stops7h 45m
Wed 9/910:40 pm -
1 stop8h 45m
Deal found 8/25![Southwest logo]()
$326
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 10/75:04 am -
1 stop7h 06m
Wed 10/1410:40 pm -
1 stop7h 52m
Deal found 8/28![American Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 8/25. 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 12/17:35 pm -
1 stop6h 45m
Sat 12/55:45 pm -
2 stops13h 20m
Deal found 8/25![Southwest logo]()
$332
This Delta deal was found by Cheapflights users on 8/27. 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 9/2510:32 am -
1 stop6h 37m
Mon 9/2810:30 pm -
1 stop7h 21m
Deal found 8/27![Delta logo]()
$334
This Southwest deal was found by Cheapflights users on 8/26. 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 11/95:05 am -
2 stops8h 10m
Sat 11/144:30 pm -
2 stops14h 35m
Deal found 8/26![Southwest logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/225:15 am -
1 stop7h 17m
Tue 9/298:45 am -
2 stops8h 46m
Deal found 8/25![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/164:35 pm -
1 stop9h 50m
Wed 9/2310:46 pm -
1 stop7h 57m
Deal found 8/24![American Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 8/27. 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 9/236:45 pm -
1 stop6h 55m
Sat 9/265:30 pm -
2 stops13h 55m
Deal found 8/27![Southwest logo]()
$345
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 August 29, 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 August 29, 2026.
This Delta deal was found by Cheapflights users on 8/27. 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 10/213:26 pm -
1 stop9h 36m
Mon 10/2610:00 pm -
1 stop8h 59m
Deal found 8/27![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 8/24. 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.
Fri 10/97:50 pm -
1 stop6h 55m
Mon 10/1210:40 pm -
1 stop8h 25m
Deal found 8/24![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/2310:05 am -
1 stop7h 52m
Sun 9/2710:30 pm -
1 stop8h 04m
Deal found 8/27![United Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sat 11/76:01 am -
2 stops9h 14m
Thu 11/126:15 am -
1 stop7h 41m
Deal found 8/28![American Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 8/27. 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 9/251:45 pm -
1 stop11h 25m
Mon 9/286:20 am -
2 stops8h 00m
Deal found 8/27![Southwest logo]()
$388
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/310:13 am -
2 stops12h 55m
Wed 10/710:30 pm -
1 stop8h 04m
Deal found 8/24![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 8/24. 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.
Fri 9/2511:05 am -
1 stop5h 50m
Fri 10/210:15 am -
2 stops7h 50m
Deal found 8/24![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/287:00 am -
2 stops8h 56m
Sat 10/3112:39 pm -
1 stop6h 45m
Deal found 8/25![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 8/28. 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.
Sat 1/2311:35 am -
2 stops12h 50m
Thu 1/288:25 am -
2 stops8h 25m
Deal found 8/28![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/147:25 am -
1 stop8h 52m
Sat 10/176:15 am -
2 stops9h 56m
Deal found 8/26![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 8/28. 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.
Tue 12/88:50 am -
2 stops8h 15m
Tue 12/1510:55 am -
2 stops8h 55m
Deal found 8/28![Southwest logo]()
$417
This Southwest deal was found by Cheapflights users on 8/27. 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 9/236:45 pm -
1 stop6h 55m
Sun 9/2710:40 am -
2 stops11h 25m
Deal found 8/27![Southwest logo]()
$429
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated August 29, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/25. 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 9/95:30 am -
1 stop9h 00m
Fri 9/112:30 pm -
1 stop5h 40m
Deal found 8/25![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 8/25. 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 9/96:00 am -
1 stop6h 45m
Wed 9/92:00 pm -
1 stop6h 59m
Deal found 8/25![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 8/25. 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 9/910:50 am -
2 stops10h 30m
Thu 9/102:30 pm -
1 stop5h 40m
Deal found 8/25![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 8/25. 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 9/912:10 pm -
2 stops7h 45m
Wed 9/910:40 pm -
1 stop8h 45m
Deal found 8/25![Southwest logo]()
$326
This American Airlines deal was found by Cheapflights users on 8/24. 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 9/164:35 pm -
1 stop9h 50m
Wed 9/2310:46 pm -
1 stop7h 57m
Deal found 8/24![American Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/225:15 am -
1 stop7h 17m
Tue 9/298:45 am -
2 stops8h 46m
Deal found 8/25![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 8/27. 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 9/236:45 pm -
1 stop6h 55m
Sat 9/265:30 pm -
2 stops13h 55m
Deal found 8/27![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 8/27. 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 9/2510:32 am -
1 stop6h 37m
Mon 9/2810:30 pm -
1 stop7h 21m
Deal found 8/27![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 8/27. 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 9/255:50 pm -
1 stop7h 16m
Fri 10/210:30 pm -
1 stop8h 49m
Deal found 8/27![Delta logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 8/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:11 pm -
1 stop17h 41m
Tue 10/134:53 pm -
2 stops24h 38m
Deal found 8/28![Multiple Airlines logo]()
$368
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 August 29, 2026.
Search for one-way flight options from Louisville to San Diego. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/53:36 pm -
1 stop9h 01m
Deal found 8/27![American Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 8/27. 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 9/103:20 pm -
2 stops9h 40m
Deal found 8/27![Southwest logo]()
$166
This Delta deal was found by Cheapflights users on 8/25. 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 9/185:55 pm -
1 stop7h 59m
Deal found 8/25![Delta logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Thu 11/59:09 pm -
3 stops45h 49m
Deal found 8/23![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/910:56 am -
2 stops15h 55m
Deal found 8/26![Multiple Airlines logo]()
$203
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:15 am -
1 stop7h 17m
Deal found 8/28![United Airlines logo]()
$204
This deal was found by Cheapflights users on 8/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:10 am -
1 stop9h 17m
Deal found 8/24![United Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 8/27. 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 10/55:15 am -
2 stops9h 20m
Deal found 8/27![United Airlines logo]()
$216
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:23 am -
3 stops17h 06m
Deal found 8/28![United Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 9/187:59 pm -
3 stops25h 20m
Deal found 8/25![Multiple Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 8/25. 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 9/181:46 pm -
2 stops9h 16m
Deal found 8/25![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Wed 11/251:17 pm -
1 stop9h 23m
Deal found 8/28![American Airlines logo]()
$233
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 August 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Southwest) |
One-way from | $161 (American Airlines) |
Popular in | March |
Cheapest in | February |
Average price | $454 |
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 7,457,451 searches. Data last updated August 29, 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 Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Wed 10/21
3:26 pm-10:02 pm
1 stop9h 36m
San Diego
Mon 10/26
10:00 pm-9:59 am
1 stop8h 59m
$321
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 10/9
7:50 pm-11:45 pm
1 stop6h 55m
San Diego
Mon 10/12
10:40 pm-10:05 am
1 stop8h 25m
$334
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 9/25
1:45 pm-10:10 pm
1 stop11h 25m
San Diego
Mon 9/28
6:20 am-5:20 pm
2 stops8h 00m
$388
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Wed 9/23
10:05 am-2:57 pm
1 stop7h 52m
San Diego
Sun 9/27
10:30 pm-9:34 am
1 stop8h 04m
$394
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Sat 11/7
6:01 am-12:15 pm
2 stops9h 14m
San Diego
Thu 11/12
6:15 am-4:56 pm
1 stop7h 41m
$412
Quickest round-trip
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 9/25
11:05 am-1:55 pm
1 stop5h 50m
San Diego
Fri 10/2
10:15 am-9:05 pm
2 stops7h 50m
$412
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Sat 1/23
11:35 am-9:25 pm
2 stops12h 50m
San Diego
Thu 1/28
8:25 am-7:50 pm
2 stops8h 25m
$417
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Tue 12/8
8:50 am-2:05 pm
2 stops8h 15m
San Diego
Tue 12/15
10:55 am-10:50 pm
2 stops8h 55m
$417
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Sat 10/3
10:13 am-8:08 pm
2 stops12h 55m
San Diego
Wed 10/7
10:30 pm-9:34 am
1 stop8h 04m
$426
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Wed 10/28
7:00 am-12:56 pm
2 stops8h 56m
San Diego
Sat 10/31
12:39 pm-10:24 pm
1 stop6h 45m
$426
Showing 1-10 of 19 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 August.
| 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 9 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, February is the cheapest month in which you can book a flight from Louisville to San Diego (average of $378). Flying from Louisville to San Diego in March is currently the most expensive (average of $544). 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?
Airfare is below average for this route at the moment.
Louisville to San Diego flights typically cost between $376 and $503 in September.The cheapest round-trip price found within the last 5 days was $316 on Southwest (Sep 9-Sep 11).
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 August 29, 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.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Boarding
8.1
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
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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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 7,457,451 searches. Data last updated August 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$448 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$427 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$341 | Average$474 | FlexibilityNo cancel fee | On-time63% |