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$46+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/1110:24 amCVG - SAN
2 stops13h 00mFrontier
Tue 11/186:58 amSAN - CVG
1 stop12h 10mFrontier
Deal found 10/28$175
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/83:47 pmCVG - SAN
1 stop9h 38mFrontier
Wed 11/196:41 amSAN - CVG
1 stop12h 27mFrontier
Deal found 10/29$176
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 12/46:10 amCVG - SAN
1 stop16h 05mFrontier
Sun 12/76:34 amSAN - CVG
1 stop9h 58mFrontier
Deal found 10/28$178
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:24 amCVG - SAN
1 stop14h 15mFrontier
Sun 11/167:29 pmSAN - CVG
1 stop11h 22mFrontier
Deal found 10/29$182
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Mon 12/86:00 amCVG - SAN
2 stops11h 10mFrontier
Fri 12/121:33 pmSAN - CVG
1 stop7h 25mFrontier
Deal found 10/29$189
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Thu 11/139:30 pmCVG - SAN
1 stop18h 05mFrontier
Mon 11/173:59 pmSAN - CVG
2 stops27h 09mFrontier
Deal found 10/29$195
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 amCVG - SAN
1 stop16h 05mFrontier
Mon 12/154:57 pmSAN - CVG
2 stops21h 47mFrontier
Deal found 10/30$199
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/153:47 pmCVG - SAN
1 stop9h 38mFrontier
Sat 11/228:39 amSAN - CVG
1 stop6h 45mFrontier
Deal found 10/30$204
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:24 amCVG - SAN
1 stop28h 28mFrontier
Mon 12/86:25 amSAN - CVG
1 stop13h 09mFrontier
Deal found 10/30$206
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:24 amCVG - SAN
1 stop14h 15mFrontier
Mon 11/246:52 pmSAN - CVG
1 stop18h 11mFrontier
Deal found 10/30$208
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 pmCVG - SAN
1 stop18h 05mFrontier
Sun 11/1611:34 amSAN - CVG
2 stops29h 46mFrontier
Deal found 10/30$211
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Mon 12/154:52 pmTYS - SAN
1 stop10h 07mMultiple Airlines
Fri 12/191:33 pmSAN - TYS
1 stop21h 30mMultiple Airlines
Deal found 10/29$230

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$175
(Kiwi.com)

One-way from

$46
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$462
Provider with most accurate pricing for Louisville Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-San Diego flights.
Search Deals
From Kentucky to San Diego
Search Deals
One-way flight from Kentucky to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($43 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 October 2025
Search Deals

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 October 30, 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

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Tue 11/18

10:24 am-11:52 am

1 stop28h 28m

San Diego

Mon 12/8

6:25 am-10:34 pm

1 stop13h 09m

$206

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Mon 12/15

4:52 pm-11:59 pm

1 stop10h 07m

San Diego

Fri 12/19

1:33 pm-2:03 pm

1 stop21h 30m

$230

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Wed 2/11

1:32 pm-10:26 pm

1 stop11h 54m

San Diego

Tue 2/24

6:15 am-9:24 pm

1 stop12h 09m

$243

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Thu 12/18

4:26 pm-11:59 pm

1 stop10h 33m

San Diego

Sun 1/4

1:06 pm-3:51 pm

2 stops23h 45m

$258

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Wed 11/26

7:30 am-7:54 am

1 stop27h 24m

San Diego

Wed 12/3

6:25 am-10:49 am

2 stops25h 24m

$266

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Thu 1/1

4:26 pm-11:59 pm

1 stop10h 33m

San Diego

Sat 1/17

1:43 pm-5:53 pm

2 stops25h 10m

$274

LouisvilleSan Diego

SDF - SAN

SDFSAN

Louisville Intl

Sat 12/13

6:30 am-2:16 pm

1 stop10h 46m

San Diego

Tue 12/16

6:15 am-8:04 pm

1 stop10h 49m

$276

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Thu 12/18

4:26 pm-11:59 pm

1 stop10h 33m

San Diego

Thu 1/1

6:25 am-3:31 pm

1 stop6h 06m

$276

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Wed 1/7

3:53 pm-12:01 am

2 stops35h 08m

San Diego

Wed 1/14

1:43 pm-3:28 pm

1 stop22h 45m

$279

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Thu 1/8

3:32 pm-9:57 am

2 stops21h 25m

San Diego

Thu 1/15

2:50 pm-4:50 pm

1 stop23h 00m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

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 $100). Flying from Kentucky to San Diego in April is currently the most expensive (average of $296). 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 October 30, 2025.

One of the essential ways to save on airfare from Kentucky to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 22% on airfare.

What is the cheapest day to fly from Kentucky to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Kentucky to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Kentucky to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 $277, Frontier can have you in San Diego from Kentucky in 7h 17m. The distance from Kentucky to San Diego is about 1897 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 $71 on Frontier. Other airlines that offer cheap prices include United Airlines from $124 and American Airlines from $164 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 $100). Flying from Kentucky to San Diego in April is currently the most expensive (average of $296). 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
La Mesa
Poway
Lemon Grove
National City

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$232Average$342FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$234Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$274Average$441FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$405FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$362Average$516FlexibilityNo cancel feeOn-time63%

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