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$88+ Cheap flights from Kentucky to San Francisco (SFO)

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Kentucky to San Francisco

Cheapest flights from Kentucky to San Francisco
Explore the most affordable flight options available from Kentucky to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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 12/241:58 pmCVG - SFO
1 stop9h 52mDelta
Thu 12/255:50 amSFO - CVG
1 stop8h 19mDelta
Deal found 12/15$297
This Booking.com deal was found by Cheapflights users on 12/17. 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 12/228:20 pmCVG - SFO
1 stop19h 14mFrontier
Thu 1/16:24 amSFO - CVG
1 stop26h 49mFrontier
Deal found 12/17$298
This Gotogate deal was found by Cheapflights users on 12/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:16 pmCVG - SFO
1 stop8h 08mFrontier
Tue 12/308:16 pmSFO - CVG
1 stop13h 01mFrontier
Deal found 12/16$304
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/175:07 pmBNA - SFO
Nonstop5h 03mUnited Airlines
Wed 1/2111:05 amSFO - BNA
Nonstop4h 27mUnited Airlines
Deal found 12/17$331
This Frontier deal was found by Cheapflights users on 12/16. 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.
Wed 12/317:02 pmBNA - SFO
1 stop7h 22mFrontier
Mon 1/56:24 amSFO - BNA
1 stop9h 43mFrontier
Deal found 12/16$333
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/297:16 pmBNA - SFO
1 stop17h 08mSun Country Air
Sat 1/36:12 pmSFO - BNA
1 stop22h 58mSun Country Air
Deal found 12/16$336
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:10 amCVG - SFO
1 stop12h 00mFrontier
Fri 1/26:24 amSFO - CVG
1 stop27h 31mFrontier
Deal found 12/16$338
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:16 pmCVG - SFO
1 stop8h 08mMultiple Airlines
Tue 12/3012:50 pmSFO - CVG
Nonstop4h 33mMultiple Airlines
Deal found 12/16$376
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:25 pmCVG - SFO
1 stop18h 58mMultiple Airlines
Sun 12/2812:50 pmSFO - CVG
Nonstop4h 33mMultiple Airlines
Deal found 12/16$382
This Frontier deal was found by Cheapflights users on 12/16. 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 12/297:02 pmBNA - SFO
1 stop7h 22mFrontier
Mon 1/56:24 amSFO - BNA
1 stop9h 43mFrontier
Deal found 12/16$383
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Thu 12/259:44 amCVG - SFO
Nonstop5h 21mBreeze Airways
Thu 1/112:50 pmSFO - CVG
Nonstop4h 33mBreeze Airways
Deal found 12/16$384
This Gotogate deal was found by Cheapflights users on 12/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:10 amCVG - SFO
1 stop21h 14mFrontier
Sat 1/36:24 amSFO - CVG
1 stop16h 44mFrontier
Deal found 12/14$387

Find flight deals from Kentucky to San Francisco

Keep the following information in mind while searching for Kentucky to San Francisco flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$233
(Priceline)

One-way from

$88
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$429

Good round-trip deal

$208 or less

Good one-way deal

$139 or less
Provider with most accurate pricing for Louisville Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-San Francisco flights.
Search Deals
From Kentucky to San Francisco
Search Deals
One-way flight from Kentucky to San Francisco
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Kentucky to San Francisco.
Search Deals
Price to beat on a one-way flight from Kentucky to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to San Francisco 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 December 18, 2025.
Use the filters below to find and compare flights from Kentucky to San Francisco that are best for you.

Fly from

Kentucky

Fly to

San Francisco

Route

Depart

Return

Price

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Mon 1/5

4:46 pm-12:24 am

1 stop10h 38m

San Francisco

Thu 1/8

6:05 am-3:28 pm

1 stop6h 23m

$233

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 1/22

6:30 am-9:34 am

Nonstop5h 04m

San Francisco

Sun 1/25

11:05 am-5:27 pm

Nonstop4h 22m

$271

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 2/19

6:10 pm-9:21 pm

Nonstop5h 11m

San Francisco

Mon 2/23

4:40 pm-10:59 pm

Nonstop4h 19m

$271

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 1/23

6:35 pm-9:36 pm

Nonstop5h 01m

San Francisco

Sun 1/25

11:05 am-5:27 pm

Nonstop4h 22m

$271

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 1/16

2:52 pm-9:30 pm

1 stop8h 38m

San Francisco

Mon 1/19

4:20 pm-10:44 pm

Nonstop4h 24m

$277

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 1/15

10:43 am-5:50 pm

1 stop9h 07m

San Francisco

Sun 1/18

4:20 pm-10:44 pm

Nonstop4h 24m

$277

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Sat 1/17

2:52 pm-9:30 pm

1 stop8h 38m

San Francisco

Mon 1/19

4:20 pm-10:44 pm

Nonstop4h 24m

$277

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Wed 1/14

6:30 am-9:34 am

Nonstop5h 04m

San Francisco

Tue 1/20

10:50 pm-12:07 pm

1 stop11h 17m

$281

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Tue 2/17

6:35 am-1:48 pm

1 stop10h 13m

San Francisco

Sat 2/21

6:05 am-7:02 pm

1 stop9h 57m

$283

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Tue 3/17

6:30 am-2:05 pm

1 stop10h 35m

San Francisco

Mon 3/23

6:05 am-7:04 pm

1 stop9h 59m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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

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

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

Currently, September is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $114). Flying from Kentucky to San Francisco in February is currently the most expensive (average of $308). 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 SFO?

Find hourly flight availability from Kentucky to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Kentucky to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 25% versus a flight at noon.

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

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

Travelers seeking maximum savings on their Kentucky to San Francisco flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday 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 Francisco. 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 Francisco from Kentucky?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Kentucky. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    Within the past month, 1 users have taken a look at flights from Kentucky to San Francisco.

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

    Airlines like Frontier, United Airlines, and Delta fly from Kentucky to San Francisco in about 5h 04m. The time it takes to get you to your destination can typically vary by up to 5h 34m. Kentucky and San Francisco are separated by a distance of 1962 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $108 is the cheapest one-way deal found within the past few days, from Breeze Airways. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $114 and $144, respectively.

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

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

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

    Looking for the cheapest flight from Kentucky to San Francisco? While on average our users pay $188, our data indicates the cheapest price to be $129. The most popular route (Nashville Intl - San Francisco), is priced around $201.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $114). Flying from Kentucky to San Francisco in February is currently the most expensive (average of $308). 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 Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Redwood City
Sunnyvale
Santa Clara
San Bruno
Daly City
San Carlos
Vallejo
Hollister
San Ramon
Foster City
Union City
Davis
Emeryville

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Alternative routes for Kentucky to San Francisco

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Top 5 airlines flying from Kentucky to San Francisco

Discover the top 5 airlines that operate flights from Kentucky to San Francisco. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$161Average$263FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$189Average$412FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$450FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$308Average$506FlexibilityNo cancel feeOn-time69%

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