$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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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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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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 June 21, 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 21, 2026.
This Southwest deal was found by Cheapflights users on 6/16. 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.
Tue 7/144:15 pm
SDF
- SAN
1 stop10h 15m
Southwest
Tue 7/2110:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/16![Southwest logo]()
$321
This American Airlines deal was found by Cheapflights users on 6/17. 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 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
1 stop8h 25m
American Airlines
Wed 7/810:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/17![American Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/87:50 pm
SDF
- SAN
1 stop7h 09m
American Airlines
Tue 7/2110:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/16![American Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:47 pm
SDF
- SAN
1 stop6h 49m
Delta
Tue 10/1311:40 am
SAN
- SDF
1 stop7h 01m
Delta
Deal found 6/21![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:25 pm
SDF
- SAN
2 stops7h 35m
Southwest
Sat 8/156:20 am
SAN
- SDF
2 stops7h 55m
Southwest
Deal found 6/20![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:50 am
SDF
- SAN
2 stops8h 05m
Southwest
Tue 8/1110:40 pm
SAN
- SDF
1 stop10h 30m
Southwest
Deal found 6/21![Southwest logo]()
$332
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Sat 9/510:05 am
SDF
- SAN
1 stop7h 52m
United Airlines
Mon 9/710:40 pm
SAN
- SDF
1 stop7h 57m
United Airlines
Deal found 6/17![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 6/16. 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.
Wed 8/264:00 pm
SDF
- SAN
2 stops8h 05m
Southwest
Sat 8/296:35 am
SAN
- SDF
1 stop7h 50m
Southwest
Deal found 6/16![Southwest logo]()
$334
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 9/812:47 pm
SAN
- SDF
1 stop7h 24m
American Airlines
Deal found 6/20![American Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 6/17. 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.
Mon 8/1710:40 am
SDF
- SAN
2 stops8h 40m
Southwest
Thu 8/202:30 pm
SAN
- SDF
1 stop5h 35m
Southwest
Deal found 6/17![Southwest logo]()
$338
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 21, 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 21, 2026.
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am
SDF
- SAN
1 stop7h 10m
Delta
Thu 10/1512:50 pm
SAN
- SDF
1 stop8h 12m
Delta
Deal found 6/21![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/16. 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.
Wed 8/264:00 pm
SDF
- SAN
2 stops8h 05m
Southwest
Sat 8/296:35 am
SAN
- SDF
1 stop7h 50m
Southwest
Deal found 6/16![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:25 am
SDF
- SAN
1 stop8h 52m
United Airlines
Wed 8/2610:13 am
SAN
- SDF
1 stop6h 46m
United Airlines
Deal found 6/20![United Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:25 pm
SDF
- SAN
1 stop7h 30m
Delta
Wed 10/149:40 pm
SAN
- SDF
1 stop9h 14m
Delta
Deal found 6/21![Delta logo]()
$350
This Southwest deal was found by Cheapflights users on 6/16. 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.
Tue 7/144:15 pm
SDF
- SAN
1 stop10h 15m
Southwest
Tue 7/2112:10 pm
SAN
- SDF
2 stops9h 10m
Southwest
Deal found 6/16![Southwest logo]()
$376
This Southwest deal was found by Cheapflights users on 6/18. 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.
Wed 10/75:00 pm
SDF
- SAN
1 stop7h 55m
Southwest
Sun 10/1110:40 pm
SAN
- SDF
1 stop9h 55m
Southwest
Deal found 6/18![Southwest logo]()
$389
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:23 am
SDF
- SAN
2 stops12h 32m
United Airlines
Tue 9/810:30 pm
SAN
- SDF
1 stop8h 07m
United Airlines
Deal found 6/20![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 6/17. 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.
Sun 9/136:00 am
SDF
- SAN
1 stop9h 45m
Delta
Sat 9/196:15 am
SAN
- SDF
1 stop7h 25m
Delta
Deal found 6/17![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:54 pm
SDF
- SAN
1 stop6h 52m
Delta
Fri 10/169:40 pm
SAN
- SDF
1 stop8h 10m
Delta
Deal found 6/21![Delta logo]()
$397
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:05 pm
SDF
- SAN
1 stop7h 25m
Southwest
Tue 7/2110:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/19![Southwest logo]()
$419
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated June 21, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/16. 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.
Tue 6/306:00 am
SDF
- SAN
1 stop8h 37m
Delta
Fri 7/32:40 pm
SAN
- SDF
1 stop6h 16m
Delta
Deal found 6/16![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/17. 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 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
1 stop8h 25m
American Airlines
Wed 7/810:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/17![American Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 6/17. 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.
Sat 7/45:50 am
SDF
- SAN
2 stops11h 30m
Southwest
Wed 7/810:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/17![Southwest logo]()
$359
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/87:50 pm
SDF
- SAN
1 stop7h 09m
American Airlines
Tue 7/2110:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/16![American Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 6/16. 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.
Tue 7/144:15 pm
SDF
- SAN
1 stop10h 15m
Southwest
Tue 7/2110:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/16![Southwest logo]()
$321
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:35 am
SDF
- SAN
2 stops11h 40m
Southwest
Tue 7/2810:40 pm
SAN
- SDF
1 stop8h 25m
Southwest
Deal found 6/19![Southwest logo]()
$394
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/227:48 pm
SDF
- SAN
1 stop7h 11m
American Airlines
Mon 7/2710:45 pm
SAN
- SDF
1 stop8h 18m
American Airlines
Deal found 6/16![American Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:25 pm
SDF
- SAN
2 stops7h 35m
Southwest
Sat 8/156:20 am
SAN
- SDF
2 stops7h 55m
Southwest
Deal found 6/20![Southwest logo]()
$331
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:00 pm
SDF
- SAN
1 stop9h 50m
American Airlines
Sat 8/1510:57 am
SAN
- SDF
2 stops8h 20m
American Airlines
Deal found 6/20![American Airlines logo]()
$357
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 21, 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 21, 2026.
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 8/56:05 am
SDF
- SAN
1 stop7h 02m
American Airlines
Deal found 6/16![American Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 6/16. 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.
Wed 8/512:10 pm
SDF
- SAN
2 stops7h 45m
Southwest
Deal found 6/16![Southwest logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/124:52 pm
SDF
- SAN
3 stops48h 16m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 8/38:48 pm
SDF
- SAN
3 stops44h 20m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:02 pm
SDF
- SAN
3 stops58h 04m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$228
This Southwest deal was found by Cheapflights users on 6/16. 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 8/35:05 pm
SDF
- SAN
1 stop9h 20m
Southwest
Deal found 6/16![Southwest logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 6/19![Breeze Airways logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:55 pm
SDF
- SAN
1 stop19h 53m
Breeze Airways
Deal found 6/20![Breeze Airways logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 6/16. 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.
Wed 8/58:06 pm
SDF
- SAN
3 stops30h 53m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$257
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 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $321 (Southwest) |
One-way from | $161 (American Airlines) |
Popular in | April |
Cheapest in | August |
Average price | $497 |
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 21, 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
Tue 10/6
6:00 am-10:10 am
1 stop7h 10m
San Diego
Thu 10/15
12:50 pm-12:02 am
1 stop8h 12m
$329
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 8/26
4:00 pm-9:05 pm
2 stops8h 05m
San Diego
Sat 8/29
6:35 am-5:25 pm
1 stop7h 50m
$334
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 10/8
7:25 pm-11:55 pm
1 stop7h 30m
San Diego
Wed 10/14
9:40 pm-9:54 am
1 stop9h 14m
$350
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Tue 7/14
4:15 pm-11:30 pm
1 stop10h 15m
San Diego
Tue 7/21
12:10 pm-12:20 am
2 stops9h 10m
$376
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Wed 10/7
5:00 pm-9:55 pm
1 stop7h 55m
San Diego
Sun 10/11
10:40 pm-11:35 am
1 stop9h 55m
$389
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Sun 9/13
6:00 am-12:45 pm
1 stop9h 45m
San Diego
Sat 9/19
6:15 am-4:40 pm
1 stop7h 25m
$397
Quickest round-trip
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Mon 10/5
7:54 pm-11:46 pm
1 stop6h 52m
San Diego
Fri 10/16
9:40 pm-8:50 am
1 stop8h 10m
$397
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Fri 7/17
6:05 pm-10:30 pm
1 stop7h 25m
San Diego
Tue 7/21
10:40 pm-10:05 am
1 stop8h 25m
$419
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Tue 8/25
7:25 am-1:17 pm
1 stop8h 52m
San Diego
Wed 8/26
10:13 am-7:59 pm
1 stop6h 46m
$421
LouisvilleSan Diego
SDF - SAN
SDFSAN
Louisville Intl
Thu 9/3
10:23 am-7:55 pm
2 stops12h 32m
San Diego
Tue 9/8
10:30 pm-9:37 am
1 stop8h 07m
$434
Showing 1-10 of 20 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 $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 June 21, 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
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
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.
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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 June 21, 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$462 | FlexibilityNo cancel fee | On-time63% |