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$55+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Kentucky to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Kentucky (USKY) 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 January 21, 2025.

Round-trip from

$158
(Trip.com)

One-way from

$55
(Frontier)
From Kentucky to San Diego
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One-way flight from Kentucky to San Diego
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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 January 21, 2025.

This Trip.com deal was found by Cheapflights users on 1/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/207:59 pmCVG - SAN
1 stop26h 19mFrontier
Sun 2/239:13 pmSAN - CVG
1 stop29h 01mFrontier
Deal found 1/19$158
This Priceline deal was found by Cheapflights users on 1/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/57:51 pmCVG - SAN
1 stop7h 07mMultiple Airlines
Thu 5/812:37 pmSAN - CVG
Nonstop4h 29mMultiple Airlines
Deal found 1/20$182
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/55:23 amTYS - SAN
1 stop7h 54mAmerican Airlines
Sat 2/89:55 pmSAN - TYS
1 stop9h 41mAmerican Airlines
Deal found 1/20$229
This Frontier deal was found by Cheapflights users on 1/20. 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.
Thu 2/64:19 pmTYS - SAN
1 stop10h 33mFrontier
Sun 2/96:25 amSAN - TYS
1 stop5h 54mFrontier
Deal found 1/20$236
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/106:29 pmCVG - SAN
1 stop18h 19mAlaska Airlines
Tue 2/116:52 pmSAN - CVG
1 stop19h 37mAlaska Airlines
Deal found 1/20$242
This Delta deal was found by Cheapflights users on 1/21. 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.
Sat 2/227:00 amCVG - SAN
1 stop10h 24mDelta
Thu 2/277:20 amSAN - CVG
1 stop8h 25mDelta
Deal found 1/21$243
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/222:08 pmLEX - SAN
1 stop6h 50mAmerican Airlines
Sat 3/11:46 pmSAN - LEX
1 stop7h 08mAmerican Airlines
Deal found 1/20$259
This Mytrip deal was found by Cheapflights users on 1/21. 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 2/312:55 pmBNA - SAN
1 stop11h 23mSpirit Airlines
Fri 2/76:15 amSAN - BNA
3 stops27h 32mSpirit Airlines
Deal found 1/21$276
This Delta deal was found by Cheapflights users on 1/20. 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 2/56:36 amTYS - SAN
1 stop7h 19mDelta
Wed 2/1212:00 pmSAN - TYS
1 stop6h 39mDelta
Deal found 1/20$277
This Delta deal was found by Cheapflights users on 1/20. 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 2/265:26 amBNA - SAN
1 stop7h 12mDelta
Sun 3/210:15 pmSAN - BNA
1 stop9h 30mDelta
Deal found 1/20$277
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/57:00 amTYS - SAN
1 stop7h 28mUnited Airlines
Sun 2/99:30 pmSAN - TYS
1 stop10h 14mUnited Airlines
Deal found 1/21$284
This Booking.com deal was found by Cheapflights users on 1/21. 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.
Mon 4/146:00 pmBNA - SAN
1 stop8h 14mMultiple Airlines
Fri 4/183:10 pmSAN - BNA
2 stops15h 10mMultiple Airlines
Deal found 1/21$288

Find flights from Kentucky to San Diego within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Thu 2/20

7:59 pm-7:18 pm

1 stop26h 19m

San Diego

Sun 2/23

9:13 pm-5:14 am

1 stop29h 01m

$158

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Mon 5/5

7:51 pm-11:58 pm

1 stop7h 07m

San Diego

Thu 5/8

12:37 pm-8:06 pm

Nonstop4h 29m

$182

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Tue 5/20

10:06 am-11:52 am

Nonstop4h 46m

San Diego

Tue 6/3

12:37 pm-8:06 pm

Nonstop4h 29m

$208

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Wed 2/5

2:48 pm-7:16 pm

1 stop7h 28m

San Diego

Sat 2/8

6:40 am-6:21 pm

1 stop8h 41m

$229

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Thu 2/6

4:19 pm-11:52 pm

1 stop10h 33m

San Diego

Sun 2/9

6:25 am-3:19 pm

1 stop5h 54m

$236

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Mon 2/10

6:29 pm-9:48 am

1 stop18h 19m

San Diego

Tue 2/11

6:52 pm-5:29 pm

1 stop19h 37m

$242

CincinnatiSan Diego

CVG - SAN

CVGSAN

Cincinnati Cinci./N. Kentucky

Sat 2/22

7:00 am-2:24 pm

1 stop10h 24m

San Diego

Thu 2/27

7:20 am-6:45 pm

1 stop8h 25m

$243

LexingtonSan Diego

LEX - SAN

LEXSAN

Lexington Blue Grass

Sat 2/22

2:08 pm-5:58 pm

1 stop6h 50m

San Diego

Sat 3/1

1:46 pm-11:54 pm

1 stop7h 08m

$259

NashvilleSan Diego

BNA - SAN

BNASAN

Nashville Intl

Mon 2/3

12:55 pm-10:18 pm

1 stop11h 23m

San Diego

Fri 2/7

6:15 am-11:47 am

3 stops27h 32m

$276

KnoxvilleSan Diego

TYS - SAN

TYSSAN

Knoxville McGhee Tyson

Wed 2/5

6:36 am-10:55 am

1 stop7h 19m

San Diego

Tue 2/11

12:05 pm-11:04 pm

1 stop7h 59m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 57 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.

Travel insights for flights from Kentucky to San Diego

Get recent, data-driven insights about flights from Kentucky to San Diego including ideal travel times, pricing trends, and more.

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 January 21, 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.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 January 21, 2025.
Read reviews from past customers who have flown United Airlines, Southwest and Delta from Kentucky to San Diego. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Crew

8.7

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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 $55 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $69 and American Airlines from $115 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 Kentucky?

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

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$154Average$224FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$262Average$437FlexibilityNo cancel feeOn-time71%
DeltaCheapest$281Average$422FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$346Average$531FlexibilityNo cancel feeOn-time63%
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