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Cheap flights from Louisville to San Diego from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to San Diego departing on 9/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:15 am - 9:32 am
SDF
-
SAN
7h 17m
1 stop
United Airlines Logo
10:40 pm - 9:38 am
SAN
-
SDF
7h 58m
1 stop
$267United Airlines
Thu, Aug 13 - Mon, Aug 17
Southwest Logo
4:15 pm - 7:20 pm
SDF
-
SAN
6h 05m
1 stop
Southwest Logo
2:30 pm - 11:05 pm
SAN
-
SDF
5h 35m
1 stop
$272Southwest
Fri, Aug 7 - Fri, Aug 14
Delta Logo
6:00 am - 9:46 am
SDF
-
SAN
6h 46m
1 stop
Delta Logo
6:15 am - 5:19 pm
SAN
-
SDF
8h 04m
1 stop
$277Delta
Tue, Sep 29 - Thu, Oct 1
Southwest Logo
10:40 am - 4:20 pm
SDF
-
SAN
8h 40m
2 stops
Southwest Logo
2:30 pm - 11:05 pm
SAN
-
SDF
5h 35m
1 stop
$278Southwest
Fri, Aug 7 - Fri, Aug 14
Southwest Logo
11:05 am - 3:10 pm
SDF
-
SAN
7h 05m
1 stop
Southwest Logo
7:50 am - 8:25 pm
SAN
-
SDF
9h 35m
2 stops
$282Southwest
Thu, Aug 27 - Mon, Aug 31
Southwest Logo
3:20 pm - 9:55 pm
SDF
-
SAN
9h 35m
2 stops
Southwest Logo
10:15 am - 11:05 pm
SAN
-
SDF
9h 50m
1 stop
$288Southwest
Thu, Sep 17 - Mon, Sep 21
Southwest Logo
3:20 pm - 9:55 pm
SDF
-
SAN
9h 35m
2 stops
Southwest Logo
8:25 am - 6:30 pm
SAN
-
SDF
7h 05m
1 stop
$291Southwest
Thu, Aug 20 - Mon, Aug 24
American Airlines Logo
6:45 pm - 11:47 pm
SDF
-
SAN
8h 02m
1 stop
American Airlines Logo
8:00 am - 6:50 pm
SAN
-
SDF
7h 50m
1 stop
$294American Airlines
Sun, Sep 6 - Fri, Sep 11
Southwest Logo
3:20 pm - 9:55 pm
SDF
-
SAN
9h 35m
2 stops
Southwest Logo
2:30 pm - 11:05 pm
SAN
-
SDF
5h 35m
1 stop
$295Southwest
Thu, Aug 13 - Mon, Aug 17
Southwest Logo
3:20 pm - 9:55 pm
SDF
-
SAN
9h 35m
2 stops
Southwest Logo
7:50 am - 8:25 pm
SAN
-
SDF
9h 35m
2 stops
$296Southwest
Thu, Aug 27 - Mon, Aug 31

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United Airlines flights from Louisville to San Diego

Our best United Airlines deals on Louisville to San Diego flight tickets
United Airlines
Aug 27
SDF5:15 amLouisville Intl
7h 17m
1 stop
SAN9:32 amSan Diego
Aug 31
SAN10:40 pmSan Diego
7h 58m
1 stop
SDF9:38 amLouisville Intl
$267
United Airlines
Aug 29
SDF1:50 pmLouisville Intl
9h 05m
2 stops
SAN7:55 pmSan Diego
Sep 4
SAN12:33 pmSan Diego
6h 58m
1 stop
SDF10:31 pmLouisville Intl
$312
United Airlines
Sep 4
SDF7:10 amLouisville Intl
7h 05m
1 stop
SAN11:15 amSan Diego
Sep 8
SAN10:30 pmSan Diego
8h 07m
1 stop
SDF9:37 amLouisville Intl
$334

Delta flights from Louisville to San Diego

Our best Delta deals on Louisville to San Diego flight tickets
Delta
Sep 29
SDF8:09 amLouisville Intl
7h 16m
1 stop
SAN12:25 pmSan Diego
Oct 2
SAN2:00 pmSan Diego
6h 59m
1 stop
SDF11:59 pmLouisville Intl
$277
Delta
Sep 15
SDF3:43 pmLouisville Intl
6h 44m
1 stop
SAN7:27 pmSan Diego
Sep 22
SAN10:25 pmSan Diego
7h 26m
1 stop
SDF8:51 amLouisville Intl
$321
Delta
Oct 6
SDF10:39 amLouisville Intl
10h 10m
1 stop
SAN5:49 pmSan Diego
Oct 10
SAN10:30 pmSan Diego
8h 24m
1 stop
SDF9:54 amLouisville Intl
$328

momondo 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, momondo users made 832,500 searches. Data last updated July 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

Price

Cheapest round-trip

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 8/13

5:15 am-9:32 am

1 stop7h 17m

San Diego

Mon 8/17

10:40 pm-9:38 am

1 stop7h 58m

$267
Quickest round-trip

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Fri 8/7

4:15 pm-7:20 pm

1 stop6h 05m

San Diego

Fri 8/14

2:30 pm-11:05 pm

1 stop5h 35m

$272

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Tue 9/29

6:00 am-9:46 am

1 stop6h 46m

San Diego

Thu 10/1

6:15 am-5:19 pm

1 stop8h 04m

$277

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Fri 8/7

10:40 am-4:20 pm

2 stops8h 40m

San Diego

Fri 8/14

2:30 pm-11:05 pm

1 stop5h 35m

$278

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 8/27

11:05 am-3:10 pm

1 stop7h 05m

San Diego

Mon 8/31

7:50 am-8:25 pm

2 stops9h 35m

$282

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 9/17

3:20 pm-9:55 pm

2 stops9h 35m

San Diego

Mon 9/21

10:15 am-11:05 pm

1 stop9h 50m

$288

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 8/20

3:20 pm-9:55 pm

2 stops9h 35m

San Diego

Mon 8/24

8:25 am-6:30 pm

1 stop7h 05m

$291

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Sun 9/6

6:45 pm-11:47 pm

1 stop8h 02m

San Diego

Fri 9/11

8:00 am-6:50 pm

1 stop7h 50m

$294

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 8/13

3:20 pm-9:55 pm

2 stops9h 35m

San Diego

Mon 8/17

2:30 pm-11:05 pm

1 stop5h 35m

$295

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Thu 8/27

3:20 pm-9:55 pm

2 stops9h 35m

San Diego

Mon 8/31

7:50 am-8:25 pm

2 stops9h 35m

$296

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to San Diego from

How to get the cheapest flight ticket from Louisville to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of August, then departing from Louisville during the month September is also very affordable. Most momondo users find prices during this month for around $371.

How far in advance should I book a flight from Louisville to San Diego?

You are more likely to see cheaper flights to San Diego from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $435 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Louisville for as low as $333 on momondo.

How have Louisville to San Diego flight prices changed over time?

As of July 2026, prices for Louisville to San Diego flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to San Diego (SDF to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to San Diego

Fastest flight time

6h 05m

Direct flights

None
The fastest flight from Louisville to San Diego takes 6h 05m
There are no direct flights from Louisville to San Diego. There are no popular flight routes from Louisville to San Diego.
Search flight deals

Frequently asked questions about flying from Louisville to San Diego

  • How far is Louisville Intl to San Diego by plane?

    The straight-line distance from Louisville Intl to San Diego is 1797.3 mi. Flights usually cover this in 6h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Louisville Intl Airport to San Diego Airport?

    Prices for flights from Louisville Intl Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from Louisville Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Louisville Intl Airport to San Diego Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to San Diego?

Best airlines flying from Louisville to San Diego

Compare and see reviews for airlines that fly from Louisville to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $260Free CancellationRating
7.4
9,980 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.8
8,458 reviews
Search Delta flights
American AirlinesPriceFrom $281Free CancellationRating
7.1
11,804 reviews
Search American Airlines flights
SouthwestPriceFrom $332Free CancellationRating
7.9
4,251 reviews
Search Southwest flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
Coronado
El Cajon
Julian
National City
La Mesa
Poway
San Ysidro
Imperial Beach
Borrego Springs
Santee
Lemon Grove
Alpine

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to San Diego?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to San Diego. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Louisville to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Louisville with this policy.

How can momondo help me find flights from Louisville to San Diego?

momondo helps you find the best flight between Louisville and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Louisville to San Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego from Louisville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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