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San Diego

$67+ Cheap flights from Kentucky to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Kentucky to San Diego

Keep the following information in mind while searching for Kentucky to San Diego flight deals. Data was last updated July 31, 2025.

Round-trip from

$152
(Mytrip)

One-way from

$57
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$456
From Kentucky to San Diego
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One-way flight from Kentucky to San Diego
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Highest demand for flights based on searches. 5% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Kentucky to San Diego

Cheapest flights from Kentucky to San Diego
Explore the most affordable flight options available from Kentucky to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:25 pmSDF - SAN
1 stop9h 01mSpirit Airlines
Wed 9/107:47 pmSAN - SDF
2 stops15h 28mSpirit Airlines
Deal found 7/30$152
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/249:49 pmCVG - SAN
1 stop12h 32mMultiple Airlines
Thu 8/286:15 amSAN - CVG
1 stop11h 44mMultiple Airlines
Deal found 7/30$199
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/172:55 pmBNA - SAN
1 stop10h 13mSpirit Airlines
Mon 10/208:29 amSAN - BNA
1 stop11h 13mSpirit Airlines
Deal found 7/30$206
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/114:38 pmBNA - SAN
1 stop7h 47mMultiple Airlines
Wed 10/156:15 amSAN - BNA
1 stop5h 45mMultiple Airlines
Deal found 7/29$209
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/612:54 pmLEX - SAN
1 stop9h 57mAmerican Airlines
Wed 9/1010:32 pmSAN - LEX
1 stop9h 00mAmerican Airlines
Deal found 7/29$217
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/249:03 amCVG - SAN
Nonstop4h 48mBreeze Airways
Sun 8/3111:36 amSAN - CVG
Nonstop4h 31mBreeze Airways
Deal found 7/29$217
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/2312:12 pmSDF - SAN
1 stop9h 39mAmerican Airlines
Tue 8/261:00 pmSAN - SDF
1 stop7h 08mAmerican Airlines
Deal found 7/30$237
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:00 amBNA - SAN
1 stop6h 10mFrontier
Sat 8/3012:12 pmSAN - BNA
1 stop9h 25mFrontier
Deal found 7/29$238
This Southwest deal was found by Cheapflights users on 7/30. 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 8/2311:35 amSDF - SAN
1 stop9h 20mSouthwest
Tue 8/266:30 amSAN - SDF
2 stops7h 45mSouthwest
Deal found 7/30$242
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:15 amCVG - SAN
1 stop18h 47mFrontier
Tue 8/126:25 amSAN - CVG
1 stop15h 29mFrontier
Deal found 7/29$245
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:32 pmTYS - SAN
1 stop8h 10mMultiple Airlines
Mon 9/156:15 amSAN - TYS
1 stop8h 13mMultiple Airlines
Deal found 7/31$254
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:45 amBNA - SAN
1 stop7h 45mAmerican Airlines
Tue 10/141:41 pmSAN - BNA
1 stop7h 25mAmerican Airlines
Deal found 7/30$254

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky 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 31, 2025.
Use the filters below to find and compare flights from Kentucky to San Diego that are best for you.

Fly from

Kentucky

Fly to

San Diego

Route

Depart

Return

Price

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Mon 9/8

4:25 pm-10:26 pm

1 stop9h 01m

San Diego

Wed 9/10

7:47 pm-2:15 pm

2 stops15h 28m

$152

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Sun 8/24

9:49 pm-7:21 am

1 stop12h 32m

San Diego

Thu 8/28

6:15 am-8:59 pm

1 stop11h 44m

$199

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

Fri 10/17

2:55 pm-11:08 pm

1 stop10h 13m

San Diego

Mon 10/20

8:29 am-9:42 pm

1 stop11h 13m

$206

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

Sat 10/11

4:38 pm-10:25 pm

1 stop7h 47m

San Diego

Wed 10/15

6:15 am-2:00 pm

1 stop5h 45m

$209

LexingtonSan Diego

LEX - SAN

LEXSAN

Lexington Blue Grass

Sat 9/6

12:54 pm-7:51 pm

1 stop9h 57m

San Diego

Wed 9/10

10:32 pm-10:32 am

1 stop9h 00m

$217

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Sun 8/24

9:03 am-10:51 am

Nonstop4h 48m

San Diego

Sun 8/31

11:36 am-7:07 pm

Nonstop4h 31m

$217

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Sat 8/23

12:12 pm-6:51 pm

1 stop9h 39m

San Diego

Tue 8/26

1:00 pm-11:08 pm

1 stop7h 08m

$237

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

Sat 8/23

7:00 am-11:10 am

1 stop6h 10m

San Diego

Sat 8/30

12:12 pm-11:37 pm

1 stop9h 25m

$238

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Sat 8/23

11:35 am-5:55 pm

1 stop9h 20m

San Diego

Tue 8/26

6:30 am-5:15 pm

2 stops7h 45m

$242

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Tue 8/5

7:15 am-11:02 pm

1 stop18h 47m

San Diego

Tue 8/12

6:25 am-12:54 am

1 stop15h 29m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
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Best time to book a flight from Kentucky to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Kentucky with our price prediction graph.
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 Kentucky to San Diego

What is the cheapest month to book a flight from Kentucky to San Diego?

Currently, August is the cheapest month in which you can book a flight from Kentucky to San Diego (average of $286). Flying from Kentucky to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from KY to SAN?

Find hourly flight availability from Kentucky to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Kentucky to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Kentucky to San Diego have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Breeze Airways
8.0
Very good
191 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Kentucky to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Kentucky?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Kentucky to San Diego.

  • What are the cheapest airlines to fly from Kentucky to San Diego one-way?

    One-way options have recently been found by users for as low as $57 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $118 and American Airlines from $119 one-way.

  • What are the most popular routes from Kentucky to San Diego?

    When deciding which route to take from Kentucky to San Diego consider Nashville Intl - San Diego, Cincinnati Cinci./N. Kentucky - San Diego or Knoxville McGhee Tyson - San Diego as they are the most popular.

  • Can I find deals for flights from Kentucky to San Diego that include hotel bookings?

    Yes. In addition to deals on Kentucky to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kentucky to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to San Diego.

  • Can I find deals for business class flights from Kentucky to San Diego?

    Yes. Cheapflights offers flight deals from Kentucky to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kentucky to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Kentucky to San Diego (average of $286). Flying from Kentucky to San Diego in March is currently the most expensive (average of $366). 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.

See more FAQs

Traveling to a place near San Diego?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kentucky to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Kentucky to San Diego

Discover the top 5 airlines that operate flights from Kentucky 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$169Average$295FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$247Average$419FlexibilityNo cancel feeOn-time71%
DeltaCheapest$281Average$390FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$466FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$376Average$517FlexibilityNo cancel feeOn-time63%

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