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$106+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap 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 September 16, 2025.

Round-trip from

$203
(Priceline)

One-way from

$106
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$277

Good round-trip deal

$218 or less

Good one-way deal

$139 or less
From Kentucky to San Francisco
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One-way flight from Kentucky to San Francisco
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Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 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 Kentucky to San Francisco.
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Price to beat on a one-way flight from Kentucky to San Francisco.
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Find 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 September 16, 2025.

This Breeze Airways deal was found by Cheapflights users on 9/15. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Mon 10/2712:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/15$218
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:44 amCVG - SFO
Nonstop5h 21mMultiple Airlines
Fri 10/1010:23 pmSFO - CVG
1 stop9h 07mMultiple Airlines
Deal found 9/15$218
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:27 pmCVG - SFO
1 stop12h 00mFrontier
Wed 11/58:00 amSFO - CVG
2 stops14h 39mFrontier
Deal found 9/15$221
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Fri 10/249:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Fri 10/3112:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/16$224
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:44 amCVG - SFO
Nonstop5h 21mBreeze Airways
Sun 11/212:50 pmSFO - CVG
Nonstop4h 33mBreeze Airways
Deal found 9/14$224
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:00 amCVG - SFO
1 stop17h 27mFrontier
Sat 10/186:44 amSFO - CVG
1 stop14h 15mFrontier
Deal found 9/15$226
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:00 amCVG - SFO
2 stops16h 29mFrontier
Tue 10/288:00 amSFO - CVG
2 stops14h 39mFrontier
Deal found 9/15$227
This Frontier deal was found by Cheapflights users on 9/16. 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.
Thu 10/23:21 pmCVG - SFO
1 stop11h 55mFrontier
Tue 10/78:00 amSFO - CVG
2 stops12h 59mFrontier
Deal found 9/16$228
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:52 pmCVG - SFO
2 stops14h 22mFrontier
Fri 10/3110:21 pmSFO - CVG
2 stops18h 59mFrontier
Deal found 9/15$230
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:05 amCVG - SFO
1 stop11h 17mMultiple Airlines
Thu 10/3012:50 pmSFO - CVG
Nonstop4h 33mMultiple Airlines
Deal found 9/15$231
This Frontier deal was found by Cheapflights users on 9/16. 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.
Thu 10/306:05 amCVG - SFO
2 stops18h 17mFrontier
Mon 11/33:25 pmSFO - CVG
1 stop7h 14mFrontier
Deal found 9/16$232
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/61:21 pmCVG - SFO
2 stops12h 41mFrontier
Fri 10/1010:23 pmSFO - CVG
1 stop9h 07mFrontier
Deal found 9/15$234

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 September 16, 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

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 10/24

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Mon 10/27

12:47 pm-8:12 pm

Nonstop4h 25m

$218

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Mon 12/8

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Fri 12/12

12:47 pm-8:12 pm

Nonstop4h 25m

$218

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Fri 11/14

2:02 pm-5:49 pm

2 stops30h 47m

San Francisco

Sun 11/16

6:34 am-6:22 pm

1 stop8h 48m

$254

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Thu 11/6

9:44 am-12:05 pm

Nonstop5h 21m

San Francisco

Sun 11/9

12:50 pm-8:23 pm

Nonstop4h 33m

$258

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 11/7

1:10 pm-11:59 pm

1 stop12h 49m

San Francisco

Tue 11/11

10:41 pm-12:15 pm

1 stop11h 34m

$283

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Mon 11/10

6:30 pm-11:50 pm

1 stop8h 20m

San Francisco

Tue 11/11

9:00 am-5:30 pm

1 stop29h 30m

$302

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 10/3

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Sun 10/5

10:37 pm-2:02 pm

1 stop12h 25m

$308

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Thu 9/25

9:44 am-12:05 pm

Nonstop5h 21m

San Francisco

Sun 9/28

12:50 pm-8:23 pm

Nonstop4h 33m

$308

LexingtonSan Francisco

LEX - SFO

LEXSFO

Lexington Blue Grass

Wed 2/4

11:00 am-6:20 pm

1 stop10h 20m

San Francisco

Wed 2/18

10:45 pm-10:25 am

1 stop8h 40m

$309

LexingtonSan Francisco

LEX - SFO

LEXSFO

Lexington Blue Grass

Thu 12/11

2:11 pm-8:23 pm

2 stops9h 12m

San Francisco

Tue 1/6

12:27 am-10:36 am

1 stop7h 09m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, January is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $276). Flying from Kentucky to San Francisco in June is currently the most expensive (average of $357). 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 September 16, 2025.

When flying from Kentucky to San Francisco, 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 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 Breeze Airways, JetBlue, and Alaska Airlines fly from Kentucky to San Francisco in about 5h 19m. The time it takes to get you to your destination can typically vary by up to 7h 30m. Kentucky and San Francisco are separated by a distance of 1984 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?

    $109 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 Sun Country Air and JetBlue, with prices starting from $133 and $142, 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 Lexington Blue Grass - 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 $243, our data indicates the cheapest price to be $99. The most popular route (Nashville Intl - San Francisco), is priced around $204.

  • 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, January is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $276). Flying from Kentucky to San Francisco in June is currently the most expensive (average of $357). 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
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Santa Clara
Manteca
Sunnyvale
Hollister
Vacaville
Foster City
Union City
Vallejo
Burlingame
Redwood City
San Mateo
San Leandro
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Kentucky to San Francisco

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 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$160Average$269FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$222Average$394FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$424FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$538FlexibilityNo cancel feeOn-time69%

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