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Kentucky

$109+ Cheap flights from San Francisco (SFO) to Kentucky

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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SDF
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from San Francisco to Kentucky

Keep the following information in mind while searching for San Francisco to Kentucky flight deals. Data was last updated September 14, 2025.

Round-trip from

$168
(Frontier)

One-way from

$109
(Breeze Airways)

Popular in

December

Cheapest in

October

Average price

$363

Good round-trip deal

$238 or less

Good one-way deal

$110 or less
From San Francisco to Kentucky
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One-way flight from San Francisco to Kentucky
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Highest demand for flights based on searches. 4% potential increase in price ($22 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 September 2025
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Price to beat on a round-trip flight from San Francisco to Kentucky.
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Price to beat on a one-way flight from San Francisco to Kentucky.
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Find flight deals from San Francisco to Kentucky

Cheapest flights from San Francisco to Kentucky
Explore the most affordable flight options available from San Francisco to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Frontier deal was found by Cheapflights users on 9/12. 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.
Mon 10/206:34 amSFO - TYS
1 stop9h 58mFrontier
Fri 10/248:17 pmTYS - SFO
1 stop6h 57mFrontier
Deal found 9/12$168
This Priceline deal was found by Cheapflights users on 9/13. 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 10/206:34 amSFO - TYS
1 stop9h 58mFrontier
Thu 10/238:17 pmTYS - SFO
1 stop6h 57mFrontier
Deal found 9/13$195
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:29 amSFO - TYS
1 stop10h 16mFrontier
Thu 10/168:17 pmTYS - SFO
1 stop6h 57mFrontier
Deal found 9/11$203
This Southwest deal was found by Cheapflights users on 9/12. 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.
Wed 11/122:35 pmSFO - SDF
1 stop6h 10mSouthwest
Tue 12/165:30 amSDF - SFO
1 stop10h 50mSouthwest
Deal found 9/12$204
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Fri 12/56:00 amSFO - TYS
1 stop8h 02mMultiple Airlines
Mon 12/84:47 pmTYS - SFO
1 stop10h 38mMultiple Airlines
Deal found 9/12$211
This Breeze Airways deal was found by Cheapflights users on 9/12. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Mon 11/39:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 9/12$228
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/2712:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Mon 11/39:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 9/12$232
This Trip.com deal was found by Cheapflights users on 9/14. 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 10/25:45 amSFO - LEX
1 stop12h 58mMultiple Airlines
Sun 10/510:33 pmLEX - SFO
1 stop25h 48mMultiple Airlines
Deal found 9/14$234
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/2812:50 pmSFO - CVG
Nonstop4h 33mMultiple Airlines
Tue 11/46:05 amCVG - SFO
1 stop19h 22mMultiple Airlines
Deal found 9/13$239
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/228:00 amSFO - SDF
1 stop27h 02mMultiple Airlines
Fri 10/249:43 amSDF - SFO
Nonstop5h 19mMultiple Airlines
Deal found 9/13$240
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/1110:23 pmSFO - CVG
1 stop15h 47mFrontier
Sat 10/1811:51 amCVG - SFO
1 stop12h 32mFrontier
Deal found 9/12$240
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 11/135:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Mon 12/159:43 amSDF - SFO
Nonstop5h 19mMultiple Airlines
Deal found 9/12$241

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Kentucky 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 September 14, 2025.
Use the filters below to find and compare flights from San Francisco to Kentucky that are best for you.

Fly from

San Francisco

Fly to

Kentucky

Route

Depart

Return

Price

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 11/12

2:35 pm-11:45 pm

1 stop6h 10m

Louisville Intl

Tue 12/16

5:30 am-1:20 pm

1 stop10h 50m

$204

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Fri 10/31

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

Mon 11/3

9:43 am-12:02 pm

Nonstop5h 19m

$228

San FranciscoKnoxville

SFO - TYS

SFOTYS

San Francisco

Sat 11/8

1:25 pm-11:59 pm

1 stop7h 34m

Knoxville McGhee Tyson

Tue 11/11

4:58 pm-10:55 pm

1 stop8h 57m

$243

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 10/22

8:00 am-2:02 pm

1 stop27h 02m

Louisville Intl

Fri 10/24

2:57 pm-9:29 am

1 stop21h 32m

$244

San FranciscoLexington

SFO - LEX

SFOLEX

San Francisco

Thu 10/2

5:45 am-9:43 pm

1 stop12h 58m

Lexington Blue Grass

Sun 10/5

10:33 pm-11:15 pm

2 stops27h 42m

$259

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 10/1

7:00 am-6:33 pm

1 stop8h 33m

Louisville Intl

Fri 10/3

3:30 pm-7:35 pm

1 stop7h 05m

$260

San FranciscoCincinnati

SFO - CVG

SFOCVG

San Francisco

Thu 10/9

12:50 pm-8:23 pm

Nonstop4h 33m

Cincinnati Cinci./N. Kentucky

Thu 10/16

9:44 am-12:05 pm

Nonstop5h 21m

$273

San FranciscoLexington

SFO - LEX

SFOLEX

San Francisco

Thu 10/16

5:45 am-9:43 pm

1 stop12h 58m

Lexington Blue Grass

Thu 10/23

10:33 pm-9:58 pm

1 stop26h 25m

$275

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 10/22

1:45 pm-12:01 am

1 stop7h 16m

Louisville Intl

Mon 10/27

7:15 pm-12:05 am

1 stop7h 50m

$277

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 11/11

12:45 am-11:57 am

1 stop8h 12m

Louisville Intl

Tue 12/16

6:35 am-1:34 pm

1 stop9h 59m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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

Have a flexible travel schedule? Discover the best time to fly to Kentucky from San Francisco 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 San Francisco to Kentucky

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Kentucky (average of $299). Flying from San Francisco to Kentucky in April is currently the most expensive (average of $369). 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 SFO to KY?

Find hourly flight availability from San Francisco to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

When flying from San Francisco to Kentucky, 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 Kentucky

Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated September 14, 2025.
Get a feel of what it's like to fly with Southwest, Breeze Airways, and Delta from San Francisco to Kentucky by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Breeze Airways
8.0
Very good
205 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,956 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,931 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Kentucky. 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 from for flights from San Francisco to Kentucky?

    Located just 11.8 mi from the city center, San Francisco (SFO) is the airport most travelers will use when flying to Kentucky from San Francisco.

  • How popular is this San Francisco to Kentucky flight route?

    Flights from San Francisco to Kentucky have been viewed 2 times in the past calendar month.

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

    For as low as $228, Southwest can have you in Kentucky from San Francisco in 4h 25m. San Francisco and Kentucky are separated by a distance of 1984 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Breeze Airways, with whom users have recently found tickets for as low as $109. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from San Francisco to Kentucky for a low price.

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

    While some choose either San Francisco - Cincinnati Cinci./N. Kentucky or San Francisco - Knoxville McGhee Tyson, San Francisco - Nashville Intl is the most popular route from San Francisco to Kentucky.

  • What are the cheapest flights from San Francisco to Kentucky?

    Looking at all options, your cheapest flight can be booked for $88. While the most popular route (San Francisco - Nashville Intl) can be booked for $163 on average, our data indicates $213 when flying from San Francisco to Kentucky.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Kentucky 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 San Francisco to Kentucky?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Kentucky (average of $299). Flying from San Francisco to Kentucky in April is currently the most expensive (average of $369). 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

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Alternative routes for San Francisco to Kentucky

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

Discover the top 5 airlines that operate flights from San Francisco to Kentucky. 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$156Average$288FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$178Average$474FlexibilityNo cancel feeOn-time63%
DeltaCheapest$228Average$432FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$299Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$299Average$578FlexibilityNo cancel feeOn-time69%

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