$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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Aug 17 — Aug 241
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 July 18, 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 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/179:31 am
SDF
- SAN
1 stop17h 28m
Multiple Airlines
Thu 8/2010:00 am
SAN
- SDF
1 stop30h 48m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 7/15. 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 10/2110:40 am
SDF
- SAN
1 stop8h 15m
Southwest
Wed 10/286:30 am
SAN
- SDF
1 stop5h 45m
Southwest
Deal found 7/15![Southwest logo]()
$316
This American Airlines deal was found by Cheapflights users on 7/13. 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
Thu 9/108:00 am
SAN
- SDF
1 stop7h 50m
American Airlines
Deal found 7/13![American Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 7/16. 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 8/173:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Thu 8/202:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/16![Southwest logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/228:46 pm
SDF
- SAN
1 stop17h 38m
Breeze Airways
Tue 9/112:54 pm
SAN
- SDF
1 stop22h 22m
Breeze Airways
Deal found 7/17![Breeze Airways logo]()
$325
This Southwest deal was found by Cheapflights users on 7/14. 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
Sat 9/197:35 am
SAN
- SDF
1 stop10h 45m
Southwest
Deal found 7/14![Southwest logo]()
$326
This American Airlines deal was found by Cheapflights users on 7/13. 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
Mon 9/710:45 pm
SAN
- SDF
1 stop8h 50m
American Airlines
Deal found 7/13![American Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 7/14. 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 8/1911:50 am
SDF
- SAN
2 stops8h 05m
Southwest
Tue 8/258:05 am
SAN
- SDF
2 stops9h 30m
Southwest
Deal found 7/14![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 7/18. 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 8/1711:05 am
SDF
- SAN
1 stop5h 50m
Southwest
Mon 8/242:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/18![Southwest logo]()
$332
This American Airlines deal was found by Cheapflights users on 7/16. 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 8/66:30 pm
SDF
- SAN
1 stop8h 17m
American Airlines
Wed 8/126:19 am
SAN
- SDF
1 stop8h 59m
American Airlines
Deal found 7/16![American Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 7/16. 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 9/243:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Sat 9/2610:40 pm
SAN
- SDF
1 stop8h 45m
Southwest
Deal found 7/16![Southwest logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/276:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Tue 9/112:54 pm
SAN
- SDF
1 stop22h 22m
Breeze Airways
Deal found 7/17![Breeze Airways logo]()
$336
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 18, 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 18, 2026.
This Southwest deal was found by Cheapflights users on 7/15. 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 10/2110:40 am
SDF
- SAN
1 stop8h 15m
Southwest
Wed 10/286:30 am
SAN
- SDF
1 stop5h 45m
Southwest
Deal found 7/15![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 7/15. 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 8/67:54 pm
SDF
- SAN
1 stop6h 41m
Delta
Tue 8/116:15 am
SAN
- SDF
1 stop8h 04m
Delta
Deal found 7/15![Delta logo]()
$321
This United Airlines deal was found by Cheapflights users on 7/16. 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 9/199:45 am
SDF
- SAN
1 stop6h 32m
United Airlines
Wed 9/236:15 am
SAN
- SDF
2 stops9h 52m
United Airlines
Deal found 7/16![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 7/14. 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 8/273:25 pm
SDF
- SAN
1 stop8h 33m
Delta
Mon 8/312:00 pm
SAN
- SDF
1 stop7h 34m
Delta
Deal found 7/14![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 7/15. 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 11/411:10 am
SDF
- SAN
1 stop10h 25m
Southwest
Wed 11/1110:55 am
SAN
- SDF
2 stops8h 50m
Southwest
Deal found 7/15![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 7/17. 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 10/811:50 am
SDF
- SAN
1 stop10h 25m
Southwest
Mon 10/1210:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 7/17![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 7/13. 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 9/47:54 pm
SDF
- SAN
1 stop6h 41m
Delta
Tue 9/812:52 pm
SAN
- SDF
1 stop8h 07m
Delta
Deal found 7/13![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 7/13. 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 8/217:54 pm
SDF
- SAN
1 stop6h 41m
Delta
Tue 8/2510:25 pm
SAN
- SDF
1 stop9h 07m
Delta
Deal found 7/13![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 7/13. 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 8/63:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Thu 8/136:20 am
SAN
- SDF
2 stops8h 00m
Southwest
Deal found 7/13![Southwest logo]()
$389
This Delta deal was found by Cheapflights users on 7/16. 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 10/217:00 am
SDF
- SAN
1 stop8h 08m
Delta
Sun 10/259:45 pm
SAN
- SDF
1 stop9h 09m
Delta
Deal found 7/16![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 7/16. 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 9/247:10 pm
SDF
- SAN
1 stop6h 45m
Southwest
Sun 9/2710:40 pm
SAN
- SDF
1 stop8h 45m
Southwest
Deal found 7/16![Southwest logo]()
$389
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated July 18, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/13. 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 8/611:17 am
SDF
- SAN
1 stop8h 47m
Delta
Thu 8/132:00 pm
SAN
- SDF
1 stop7h 34m
Delta
Deal found 7/13![Delta logo]()
$321
This American Airlines deal was found by Cheapflights users on 7/16. 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 8/66:30 pm
SDF
- SAN
1 stop8h 17m
American Airlines
Wed 8/126:19 am
SAN
- SDF
1 stop8h 59m
American Airlines
Deal found 7/16![American Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/179:31 am
SDF
- SAN
1 stop17h 28m
Multiple Airlines
Thu 8/2010:00 am
SAN
- SDF
1 stop30h 48m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 7/16. 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 8/173:20 pm
SDF
- SAN
2 stops9h 35m
Southwest
Thu 8/202:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/16![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 7/18. 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 8/1711:05 am
SDF
- SAN
1 stop5h 50m
Southwest
Mon 8/242:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 7/18![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 7/14. 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 8/1912:10 pm
SDF
- SAN
2 stops7h 45m
Southwest
Tue 8/251:40 pm
SAN
- SDF
1 stop5h 50m
Southwest
Deal found 7/14![Southwest logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/228:46 pm
SDF
- SAN
1 stop17h 38m
Breeze Airways
Tue 9/112:54 pm
SAN
- SDF
1 stop22h 22m
Breeze Airways
Deal found 7/17![Breeze Airways logo]()
$325
This Delta deal was found by Cheapflights users on 7/17. 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 8/243:25 pm
SDF
- SAN
1 stop7h 10m
Delta
Tue 9/12:00 pm
SAN
- SDF
1 stop7h 34m
Delta
Deal found 7/17![Delta logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 8/276:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Tue 9/112:54 pm
SAN
- SDF
1 stop22h 22m
Breeze Airways
Deal found 7/17![Breeze Airways logo]()
$336
This Southwest deal was found by Cheapflights users on 7/16. 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 8/296:45 am
SDF
- SAN
2 stops10h 30m
Southwest
Mon 8/317:50 am
SAN
- SDF
2 stops9h 35m
Southwest
Deal found 7/16![Southwest logo]()
$339
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 18, 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 18, 2026.
This Delta deal was found by Cheapflights users on 7/14. 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
Deal found 7/14![Delta logo]()
$161
This Southwest deal was found by Cheapflights users on 7/14. 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 9/294:00 pm
SDF
- SAN
2 stops7h 55m
Southwest
Deal found 7/14![Southwest logo]()
$166
This Southwest deal was found by Cheapflights users on 7/13. 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 9/287:10 pm
SDF
- SAN
1 stop6h 45m
Southwest
Deal found 7/13![Southwest logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 9/2610:56 am
SDF
- SAN
3 stops48h 23m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$214
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/261:50 pm
SDF
- SAN
2 stops13h 41m
United Airlines
Deal found 7/14![United Airlines logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/25:07 pm
SDF
- SAN
3 stops48h 01m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$221
This United Airlines deal was found by Cheapflights users on 7/17. 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 8/103:25 pm
SDF
- SAN
2 stops11h 29m
United Airlines
Deal found 7/17![United Airlines logo]()
$224
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Sun 9/277:35 pm
SDF
- SAN
1 stop7h 20m
American Airlines
Deal found 7/13![American Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 stops43h 58m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$239
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 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (Kiwi.com) |
One-way from | $161 (United Airlines) |
Popular in | March |
Cheapest in | August |
Average price | $424 |
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 18, 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
Quickest round-trip
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 10/21
10:40 am-3:55 pm
1 stop8h 15m
San Diego
Wed 10/28
6:30 am-3:15 pm
1 stop5h 45m
$316
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/6
7:54 pm-11:35 pm
1 stop6h 41m
San Diego
Tue 8/11
6:15 am-5:19 pm
1 stop8h 04m
$321
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/27
3:25 pm-8:58 pm
1 stop8h 33m
San Diego
Mon 8/31
2:00 pm-12:34 am
1 stop7h 34m
$321
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 11/4
11:10 am-6:35 pm
1 stop10h 25m
San Diego
Wed 11/11
10:55 am-10:45 pm
2 stops8h 50m
$326
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Sat 9/19
9:45 am-1:17 pm
1 stop6h 32m
San Diego
Wed 9/23
6:15 am-7:07 pm
2 stops9h 52m
$371
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 10/8
11:50 am-7:15 pm
1 stop10h 25m
San Diego
Mon 10/12
10:40 pm-10:05 am
1 stop8h 25m
$388
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 9/4
7:54 pm-11:35 pm
1 stop6h 41m
San Diego
Tue 9/8
12:52 pm-11:59 pm
1 stop8h 07m
$389
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 8/21
7:54 pm-11:35 pm
1 stop6h 41m
San Diego
Tue 8/25
10:25 pm-10:32 am
1 stop9h 07m
$389
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 8/6
3:20 pm-9:55 pm
2 stops9h 35m
San Diego
Thu 8/13
6:20 am-5:20 pm
2 stops8h 00m
$389
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 10/21
7:00 am-12:08 pm
1 stop8h 08m
San Diego
Sun 10/25
9:45 pm-9:54 am
1 stop9h 09m
$389
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 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 $346). 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?
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 18, 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.
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
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
San Ysidro
Julian
Lemon Grove
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Louisville and San Diego flights
Browse other Louisville and San Diego flight options. Last updated on July 18, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 18, 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 July 18, 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$409 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$467 | FlexibilityNo cancel fee | On-time63% |