HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$62+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kentucky 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 Kentucky to San Diego

Keep the following information in mind while searching for Kentucky to San Diego flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$189
(Frontier)

One-way from

$62
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$403
From Kentucky to San Diego
Search Deals
One-way flight from Kentucky to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 septiembre 11, 2025.

This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:05 amCVG - SAN
1 stop8h 12mFrontier
dom. 11/161:20 pmSAN - CVG
1 stop8h 04mFrontier
Deal found 9/10$189
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/58:00 amCVG - SAN
1 stop10h 10mFrontier
lun. 10/139:03 pmSAN - CVG
1 stop23h 56mFrontier
Deal found 9/9$190
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
lun. 11/1012:52 pmCVG - SAN
2 stops13h 58mFrontier
dom. 11/161:20 pmSAN - CVG
1 stop8h 04mFrontier
Deal found 9/10$192
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
lun. 11/36:05 amCVG - SAN
2 stops13h 35mFrontier
jue. 11/61:20 pmSAN - CVG
1 stop8h 04mFrontier
Deal found 9/10$197
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/248:00 amCVG - SAN
1 stop17h 24mFrontier
jue. 9/256:35 amSAN - CVG
1 stop16h 05mFrontier
Deal found 9/11$204
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
jue. 10/28:00 amCVG - SAN
1 stop7h 33mFrontier
dom. 10/53:55 pmSAN - CVG
2 stops30h 02mFrontier
Deal found 9/10$207
This Southwest deal was found by Cheapflights users on 9/11. 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.
mar. 10/286:05 pmSDF - SAN
1 stop6h 55mSouthwest
mar. 11/46:40 amSAN - SDF
1 stop7h 30mSouthwest
Deal found 9/11$209
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/58:00 amCVG - SAN
1 stop13h 44mFrontier
mié. 10/158:00 amSAN - CVG
1 stop19h 54mFrontier
Deal found 9/9$209
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/228:00 amCVG - SAN
1 stop6h 48mFrontier
vie. 9/266:35 amSAN - CVG
1 stop12h 38mFrontier
Deal found 9/9$212
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/158:00 amCVG - SAN
1 stop28h 57mFrontier
mar. 10/216:41 amSAN - CVG
1 stop14h 18mFrontier
Deal found 9/11$215
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/166:14 pmCVG - SAN
1 stop8h 36mFrontier
mar. 10/282:24 pmSAN - CVG
1 stop8h 15mFrontier
Deal found 9/10$216
This American Airlines deal was found by Cheapflights users on 9/9. 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.
sáb. 10/255:29 amLEX - SAN
1 stop7h 27mAmerican Airlines
sáb. 11/11:14 pmSAN - LEX
1 stop7h 07mAmerican Airlines
Deal found 9/9$218

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 septiembre 11, 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

vie. 10/24

2:57 pm-11:04 pm

1 stop11h 07m

San Diego

dom. 10/26

4:06 pm-2:02 pm

1 stop18h 56m

$223

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

mié. 10/8

7:00 am-11:40 am

1 stop7h 40m

San Diego

mié. 10/15

11:15 am-10:30 pm

1 stop8h 15m

$243

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

mié. 10/22

5:00 am-10:45 am

1 stop8h 45m

San Diego

sáb. 10/25

12:54 pm-11:50 pm

1 stop7h 56m

$243

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

jue. 9/25

4:20 pm-11:34 pm

1 stop10h 14m

San Diego

lun. 9/29

6:15 am-3:20 pm

1 stop6h 05m

$245

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

lun. 10/6

10:37 pm-9:20 pm

1 stop24h 43m

San Diego

sáb. 10/11

2:24 pm-2:17 pm

2 stops21h 53m

$257

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

mié. 10/8

6:12 am-11:50 pm

1 stop19h 38m

San Diego

sáb. 10/11

2:24 pm-11:59 pm

1 stop7h 35m

$262

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

jue. 10/30

7:00 am-11:17 am

1 stop7h 17m

San Diego

jue. 10/30

1:20 pm-6:15 pm

1 stop25h 55m

$266

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

vie. 11/21

6:00 am-2:15 pm

1 stop10h 15m

San Diego

mar. 12/9

9:59 am-8:51 pm

1 stop8h 52m

$267

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

jue. 9/25

6:15 am-11:34 pm

2 stops19h 19m

San Diego

lun. 9/29

1:35 pm-2:31 pm

1 stop22h 56m

$273

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

mié. 10/8

6:12 am-11:50 pm

1 stop19h 38m

San Diego

dom. 10/12

6:41 am-10:40 am

1 stop25h 59m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 60 results
1
2
3
...
6

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 septiembre 11, 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.

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.

  • How long is the flight from Kentucky to San Diego?

    For as low as $243, United Airlines can have you in San Diego from Kentucky in 7h 40m. The distance from Kentucky to San Diego is about 1800 mi. This flight may include one or multiple stops.

  • 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 $82 on Frontier. Other airlines that offer cheap prices include Southwest from $105 and Spirit Airlines from $106 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 Louisville Intl - 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kentucky to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Newark to Los Angeles flights
O'Hare Intl to Las Vegas flights
Seattle to Los Angeles flights
Los Angeles to Las Vegas flights
Los Angeles to San Francisco flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
San Francisco to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Denver to Las Vegas flights
Dulles Intl to Las Vegas flights
San Jose to Los Angeles flights
Atlanta to Las Vegas flights
LaGuardia to Las Vegas flights
Hobby to Las Vegas flights
San Francisco to Los Angeles flights
Boston to Los Angeles flights
Reagan-National to Los Angeles flights
Burbank to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Boston to Las Vegas flights
Santa Ana to Las Vegas flights
Reagan-National to Las Vegas flights
O'Hare Intl to Los Angeles flights
San Francisco to Santa Ana flights
Dulles Intl to Los Angeles flights
Seattle to Ontario flights
Santa Ana to San Francisco flights
Seattle to San Diego flights
Los Angeles to San Jose flights
Minneapolis to Las Vegas flights
Seattle to San Francisco flights
John F Kennedy Intl to Ontario flights
Boston to San Francisco flights
Baltimore to Las Vegas flights
Ontario to San Francisco flights
Midway to Las Vegas flights
Portland to Los Angeles flights
George Bush Intcntl to Las Vegas flights
LaGuardia to San Francisco flights
San Jose to Las Vegas flights
Austin to Las Vegas flights
John F Kennedy Intl to San Diego flights
Love Field to Las Vegas flights

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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$230Average$333FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$234Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$474FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$409FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$346Average$513FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.