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$57+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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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 noviembre 6, 2025.

This Frontier deal was found by Cheapflights users on 11/6. 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. 12/84:52 pmTYS - SFO
1 stop10h 32mFrontier
lun. 12/156:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/6$138
This Frontier deal was found by Cheapflights users on 11/6. 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. 12/84:52 pmTYS - SFO
1 stop10h 32mFrontier
dom. 12/146:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/6$142
This Frontier deal was found by Cheapflights users on 11/5. 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.
sáb. 11/228:05 pmTYS - SFO
1 stop7h 19mFrontier
vie. 11/286:32 amSFO - TYS
1 stop6h 21mFrontier
Deal found 11/5$144
This Expedia deal was found by Cheapflights users on 11/5. 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.
vie. 12/59:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
vie. 12/1212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 11/5$204
This Frontier deal was found by Cheapflights users on 11/6. 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. 12/114:52 pmTYS - SFO
1 stop10h 32mFrontier
lun. 12/156:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/6$206
This Frontier deal was found by Cheapflights users on 11/6. 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. 12/114:52 pmTYS - SFO
1 stop10h 32mFrontier
dom. 12/146:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/6$210
This Frontier deal was found by Cheapflights users on 11/6. 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.
dom. 12/74:52 pmTYS - SFO
1 stop10h 32mFrontier
lun. 12/156:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/6$216
This Breeze Airways deal was found by Cheapflights users on 11/5. 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. 12/129:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
lun. 12/1512:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 11/5$218
This Frontier deal was found by Cheapflights users on 11/5. 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.
dom. 12/74:52 pmTYS - SFO
1 stop10h 32mFrontier
dom. 12/146:30 amSFO - TYS
1 stop6h 27mFrontier
Deal found 11/5$220
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
lun. 12/84:52 pmTYS - SFO
1 stop10h 32mMultiple Airlines
mar. 12/910:10 pmSFO - TYS
2 stops36h 01mMultiple Airlines
Deal found 11/6$228
This Kiwi.com deal was found by Cheapflights users on 11/4. 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. 11/216:30 amCVG - SFO
1 stop17h 33mFrontier
jue. 11/276:00 amSFO - CVG
1 stop7h 03mFrontier
Deal found 11/4$232
This Kiwi.com deal was found by Cheapflights users on 11/4. 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. 11/189:44 amCVG - SFO
Nonstop5h 21mMultiple Airlines
jue. 11/274:48 pmSFO - CVG
2 stops14h 12mMultiple Airlines
Deal found 11/4$236

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 noviembre 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$130
(Frontier)

One-way from

$57
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$283

Good round-trip deal

$193 or less

Good one-way deal

$129 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. 8% potential increase in price ($36 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 November 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.
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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 noviembre 6, 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

lun. 12/8

4:52 pm-12:24 am

1 stop10h 32m

San Francisco

dom. 12/14

6:30 am-3:57 pm

1 stop6h 27m

$142

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

lun. 12/8

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

vie. 12/12

12:47 pm-8:12 pm

Nonstop4h 25m

$178

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 12/12

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

lun. 12/15

12:47 pm-8:12 pm

Nonstop4h 25m

$218

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

$238

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

mié. 1/28

6:45 am-1:43 pm

1 stop9h 58m

San Francisco

dom. 2/8

6:05 am-7:04 pm

1 stop9h 59m

$293

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

mié. 1/21

6:45 am-1:43 pm

1 stop9h 58m

San Francisco

vie. 1/30

12:47 am-10:19 am

1 stop6h 32m

$295

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

mié. 1/28

6:45 am-3:05 pm

2 stops11h 20m

San Francisco

vie. 2/6

12:47 am-10:19 am

1 stop6h 32m

$300

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

sáb. 12/6

8:00 am-1:10 pm

1 stop7h 10m

San Francisco

sáb. 12/13

9:25 pm-10:40 am

2 stops11h 15m

$304

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

vie. 1/16

8:00 am-8:11 am

1 stop27h 11m

San Francisco

mar. 1/20

9:00 am-7:49 pm

1 stop7h 49m

$305

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

sáb. 1/24

7:35 am-1:43 pm

1 stop8h 08m

San Francisco

sáb. 1/31

2:35 pm-11:59 pm

1 stop7h 24m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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 noviembre 6, 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 24% 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, Breeze Airways, and Delta 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 5h 13m. 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?

    $71 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Breeze Airways and Southwest, with prices starting from $99 and $140, 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 Knoxville McGhee Tyson - 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 $212, our data indicates the cheapest price to be $109. The most popular route (Nashville Intl - San Francisco), is priced around $158.

  • 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
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
Redwood City
Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

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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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$162Average$270FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$219Average$395FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$427FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$300Average$508FlexibilityNo cancel feeOn-time69%

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