$150+ Cheap flights from Louisville to San Diego (SDF - SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Nov 11 — Nov 181
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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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 October 12, 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 October 12, 2026.
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/315:57 pm -
1 stop7h 43m
Sat 11/710:16 am -
1 stop7h 17m
Deal found 10/8![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 10/8. 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 12/33:50 pm -
2 stops9h 05m
Thu 12/3112:35 pm -
2 stops7h 15m
Deal found 10/8![Southwest logo]()
$309
This Delta deal was found by Cheapflights users on 10/8. 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 11/66:00 am -
1 stop6h 42m
Fri 11/1310:30 pm -
1 stop9h 02m
Deal found 10/8![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 10/7. 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 11/410:15 am -
2 stops8h 10m
Wed 11/1112:35 pm -
2 stops7h 20m
Deal found 10/7![Southwest logo]()
$319
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/235:02 am -
1 stop9h 16m
Wed 12/21:11 pm -
1 stop7h 44m
Deal found 10/9![American Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 10/8. 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 11/64:40 pm -
2 stops8h 40m
Fri 11/132:10 pm -
1 stop6h 35m
Deal found 10/8![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 10/11. 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 11/91:05 pm -
1 stop8h 40m
Tue 11/1710:55 am -
2 stops9h 00m
Deal found 10/11![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:15 pm -
1 stop9h 20m
Thu 10/2910:40 pm -
1 stop8h 30m
Deal found 10/7![Southwest logo]()
$331
This American Airlines deal was found by Cheapflights users on 10/11. 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 11/225:02 am -
1 stop9h 16m
Fri 11/272:18 pm -
1 stop6h 57m
Deal found 10/11![American Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 10/9. 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 11/21:05 pm -
2 stops9h 50m
Mon 11/93:00 pm -
1 stop5h 45m
Deal found 10/9![Southwest logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 12/148:47 am -
1 stop12h 24m
Thu 12/2411:56 am -
1 stop28h 23m
Deal found 10/7![Multiple Airlines logo]()
$339
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 October 12, 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 October 12, 2026.
This Southwest deal was found by Cheapflights users on 10/8. 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 12/33:50 pm -
2 stops9h 05m
Thu 12/318:20 am -
1 stop7h 35m
Deal found 10/8![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 10/10. 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 1/69:00 am -
1 stop7h 14m
Sat 1/96:20 am -
2 stops9h 09m
Deal found 10/10![United Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 10/7. 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 11/410:15 am -
2 stops8h 10m
Wed 11/1112:35 pm -
2 stops7h 20m
Deal found 10/7![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 10/9. 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 11/27:55 pm -
1 stop6h 50m
Mon 11/910:35 pm -
1 stop9h 50m
Deal found 10/9![Southwest logo]()
$321
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:15 pm -
1 stop9h 20m
Thu 10/2910:40 pm -
1 stop8h 30m
Deal found 10/7![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 10/11. 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 10/279:17 am -
2 stops8h 38m
Sat 10/3110:16 am -
1 stop7h 17m
Deal found 10/11![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/2310:27 am -
2 stops9h 48m
Wed 12/22:26 pm -
1 stop6h 23m
Deal found 10/8![United Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 10/12. 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 12/47:20 am -
2 stops7h 30m
Sun 12/66:30 am -
1 stop7h 30m
Deal found 10/12![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 10/8. 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 11/61:05 pm -
2 stops9h 50m
Fri 11/136:45 am -
2 stops7h 45m
Deal found 10/8![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 10/11. 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 10/273:00 pm -
2 stops9h 00m
Sat 10/316:35 am -
2 stops7h 25m
Deal found 10/11![Southwest logo]()
$424
Last-minute flights from Louisville to San DiegoDiscover last-minute flight deals from Louisville to San Diego. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Diego. Data last updated October 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/7. 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 10/216:00 am -
1 stop8h 13m
Wed 10/2810:53 am -
1 stop7h 40m
Deal found 10/7![Delta logo]()
$342
This Southwest deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:15 pm -
1 stop9h 20m
Thu 10/2910:40 pm -
1 stop8h 30m
Deal found 10/7![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 10/8. 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 10/266:00 am -
1 stop6h 42m
Mon 11/212:38 pm -
1 stop8h 21m
Deal found 10/8![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/315:57 pm -
1 stop7h 43m
Sat 11/710:16 am -
1 stop7h 17m
Deal found 10/8![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 10/9. 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 11/21:05 pm -
2 stops9h 50m
Mon 11/93:00 pm -
1 stop5h 45m
Deal found 10/9![Southwest logo]()
$337
This Southwest deal was found by Cheapflights users on 10/7. 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 11/410:15 am -
2 stops8h 10m
Wed 11/1112:35 pm -
2 stops7h 20m
Deal found 10/7![Southwest logo]()
$319
This Delta deal was found by Cheapflights users on 10/8. 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 11/66:00 am -
1 stop6h 42m
Fri 11/1310:30 pm -
1 stop9h 02m
Deal found 10/8![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 10/8. 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 11/64:40 pm -
2 stops8h 40m
Fri 11/132:10 pm -
1 stop6h 35m
Deal found 10/8![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 10/11. 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 11/91:05 pm -
1 stop8h 40m
Tue 11/1710:55 am -
2 stops9h 00m
Deal found 10/11![Southwest logo]()
$326
This American Airlines deal was found by Cheapflights users on 10/11. 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 11/225:02 am -
1 stop9h 16m
Fri 11/272:18 pm -
1 stop6h 57m
Deal found 10/11![American Airlines logo]()
$332
This American Airlines deal was found by Cheapflights users on 10/9. 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 11/235:02 am -
1 stop9h 16m
Wed 12/21:11 pm -
1 stop7h 44m
Deal found 10/9![American Airlines logo]()
$321
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 October 12, 2026.
Search for one-way flight options from Louisville to San Diego. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This American Airlines deal was found by Cheapflights users on 10/8. 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 1/61:11 pm -
1 stop9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$150
This Delta deal was found by Cheapflights users on 10/8. 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 11/67:55 am -
1 stop9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$159
This Southwest deal was found by Cheapflights users on 10/8. 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 11/61:05 pm -
2 stops9h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/44:06 pm -
2 stops10h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/89:09 pm -
3 stops45h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/64:03 pm -
3 stops34h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/96:23 pm -
2 stops24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/278:00 am -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/214:06 pm -
2 stops20h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Multiple Airlines logo]()
$206
This United Airlines deal was found by Cheapflights users on 10/8. 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 1/68:50 am -
2 stops11h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$215
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 October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $299 (Delta) |
One-way from | $150 (American Airlines) |
Popular in | March |
Cheapest in | February |
Average price | $470 |
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 October 12, 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
Fri 11/6
7:55 am-2:20 pm
1 stop9h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$159
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Wed 1/6
1:11 pm-7:36 pm
1 stop9h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
Quickest round-trip
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Sat 11/21
7:05 am-11:38 am
1 stop7h 33m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 11/6
1:05 pm-7:55 pm
2 stops9h 50m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 11/27
6:42 am-12:12 pm
1 stop8h 30m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$180
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Fri 11/27
8:00 am-12:56 pm
1 stop7h 56m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$190
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Wed 1/6
8:50 am-5:11 pm
2 stops11h 21m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$215
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Thu 11/5
9:02 am-5:17 pm
2 stops11h 15m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$215
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Sat 11/7
7:00 am-12:56 pm
2 stops8h 56m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$215
LouisvilleSan Diego
SDF Louisville Intl - SAN San Diego
SDFSAN
Louisville Intl
Thu 12/3
3:50 pm-9:55 pm
2 stops9h 05m
San Diego
Thu 12/31
8:20 am-6:55 pm
1 stop7h 35m
$304
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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
Prices
More
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 $377 and $556 in February.The cheapest round-trip price found within the last 5 days was $299 on Southwest (Feb 9-Feb 17).
What’s the top layover airport for flights from Louisville to San Diego?
Share of 1-stop round-trip flights from Louisville to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Louisville to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Louisville to San Diego?
Average round-trip fare for 1-stop flights from Louisville to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $396.
What’s the fastest layover option from Louisville to San Diego?
Shortest average travel time for 1-stop one-way flights from Louisville to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 7h 14m.
Which airport typically offers the quickest layover for flights from Louisville to San Diego?
Average layover duration for 1-stop one-way flights from Louisville to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 48m.
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 October 12, 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.
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
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
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
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 October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$448 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$333 | Average$454 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$333 | Average$475 | FlexibilityNo cancel fee | On-time63% |