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$105+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$188
(Kiwi.com)

One-way from

$105
(Southwest)

Popular in

June

Cheapest in

September

Average price

$276

Good round-trip deal

$218 or less

Good one-way deal

$159 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. 7% potential increase in price ($32 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 septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
vie. 10/246:00 amTYS - SFO
1 stop16h 10mMultiple Airlines
lun. 10/276:34 amSFO - TYS
1 stop9h 58mMultiple Airlines
Deal found 9/10$188
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
jue. 10/237:00 amTYS - SFO
1 stop10h 24mMultiple Airlines
dom. 10/268:21 pmSFO - TYS
1 stop20h 11mMultiple Airlines
Deal found 9/10$197
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/238:17 pmTYS - SFO
1 stop6h 57mFrontier
lun. 10/276:34 amSFO - TYS
1 stop9h 58mFrontier
Deal found 9/11$199
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
jue. 10/302:57 pmSDF - SFO
1 stop20h 47mMultiple Airlines
lun. 11/105:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Deal found 9/10$204
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/208:17 pmTYS - SFO
1 stop6h 57mFrontier
lun. 10/276:34 amSFO - TYS
1 stop9h 58mFrontier
Deal found 9/11$205
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/248:17 pmTYS - SFO
1 stop6h 57mFrontier
lun. 10/276:34 amSFO - TYS
1 stop9h 58mFrontier
Deal found 9/11$210
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
vie. 10/312:57 pmSDF - SFO
1 stop9h 38mMultiple Airlines
jue. 11/65:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Deal found 9/10$212
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
jue. 11/137:17 pmTYS - SFO
1 stop7h 57mFrontier
sáb. 11/156:39 pmSFO - TYS
2 stops20h 43mFrontier
Deal found 9/10$214
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
jue. 10/232:57 pmSDF - SFO
1 stop9h 56mMultiple Airlines
dom. 10/268:27 pmSFO - SDF
1 stop14h 35mMultiple Airlines
Deal found 9/10$217
This Breeze Airways deal was found by Cheapflights users on 9/10. 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.
vie. 11/79:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
lun. 11/1012:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/10$218
This Breeze Airways deal was found by Cheapflights users on 9/10. 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.
vie. 9/199:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
lun. 9/2212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/10$223
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/309:44 amCVG - SFO
Nonstop5h 21mBreeze Airways
jue. 11/1312:50 pmSFO - CVG
Nonstop4h 33mBreeze Airways
Deal found 9/11$224

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 septiembre 11, 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

jue. 11/13

7:17 pm-12:14 am

1 stop7h 57m

San Francisco

sáb. 11/15

6:34 am-1:44 pm

1 stop28h 10m

$197

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 11/14

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

lun. 11/17

12:47 pm-8:12 pm

Nonstop4h 25m

$218

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 11/7

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

lun. 11/10

12:47 pm-8:12 pm

Nonstop4h 25m

$218

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 9/19

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

lun. 9/22

12:47 pm-8:12 pm

Nonstop4h 25m

$223

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

vie. 10/24

6:00 am-1:58 pm

2 stops10h 58m

San Francisco

lun. 10/27

6:34 am-7:32 pm

1 stop9h 58m

$225

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

lun. 11/3

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

vie. 11/7

12:47 pm-8:12 pm

Nonstop4h 25m

$228

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 10/24

2:57 pm-9:58 pm

1 stop10h 01m

San Francisco

mié. 10/29

8:00 am-2:02 pm

1 stop27h 02m

$233

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

lun. 10/20

8:45 pm-12:05 am

1 stop6h 20m

San Francisco

mar. 10/21

6:30 am-8:20 pm

1 stop10h 50m

$243

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 11/7

5:20 pm-5:49 pm

1 stop27h 29m

San Francisco

vie. 11/14

5:53 pm-4:12 pm

2 stops43h 19m

$244

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

lun. 9/22

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

lun. 9/29

12:47 pm-8:12 pm

Nonstop4h 25m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 septiembre 11, 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, Southwest, and United Airlines fly from Kentucky to San Francisco in about 4h 48m. The time it takes to get you to your destination can typically vary by up to 1h 32m. 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?

    $105 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Breeze Airways and American Airlines, with prices starting from $109 and $122, 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 $234, our data indicates the cheapest price to be $139. The most popular route (Nashville Intl - San Francisco), is priced around $163.

  • 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
Manteca
Santa Clara
Sunnyvale
Hollister
Vacaville
Foster City
Vallejo
Burlingame
Redwood City
Union City
San Leandro
San Mateo
Lathrop

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$159Average$271FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$222Average$393FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$422FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$432FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$519FlexibilityNo cancel feeOn-time69%

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