San Francisco

$89+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
Apr 9 — Apr 161
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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 March 10, 2026.

This Frontier deal was found by Cheapflights users on 3/9. 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 4/234:28 pm
TYS
-
SFO
1 stop10h 59m
Frontier
Sun 4/266:00 am
SFO
-
TYS
1 stop6h 33m
Frontier
Deal found 3/9$221
This Breeze Airways deal was found by Cheapflights users on 3/6. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Mon 8/2412:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 3/6$228
This CheapOair deal was found by Cheapflights users on 3/8. 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 5/74:28 pm
TYS
-
SFO
1 stop19h 40m
Frontier
Sun 5/106:00 am
SFO
-
TYS
1 stop6h 33m
Frontier
Deal found 3/8$232
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 5/3110:18 pm
LEX
-
SFO
1 stop18h 11m
Multiple Airlines
Thu 6/48:43 am
SFO
-
LEX
1 stop9h 24m
Multiple Airlines
Deal found 3/9$243
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 4/3010:19 pm
LEX
-
SFO
1 stop17h 03m
Multiple Airlines
Thu 5/79:23 am
SFO
-
LEX
2 stops9h 06m
Multiple Airlines
Deal found 3/7$253
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 4/3010:19 pm
LEX
-
SFO
1 stop17h 03m
Multiple Airlines
Sat 5/95:47 pm
SFO
-
LEX
1 stop24h 42m
Multiple Airlines
Deal found 3/7$257
This Frontier deal was found by Cheapflights users on 3/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:10 pm
BNA
-
SFO
1 stop8h 17m
Frontier
Sun 4/196:00 am
SFO
-
BNA
1 stop9h 28m
Frontier
Deal found 3/10$260
This Expedia deal was found by Cheapflights users on 3/9. 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 6/212:58 pm
BNA
-
SFO
1 stop11h 54m
Frontier
Sun 6/711:59 pm
SFO
-
BNA
1 stop10h 04m
Frontier
Deal found 3/9$261
This Frontier deal was found by Cheapflights users on 3/5. 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.
Thu 3/263:01 pm
BNA
-
SFO
1 stop11h 27m
Frontier
Thu 4/26:00 am
SFO
-
BNA
1 stop6h 29m
Frontier
Deal found 3/5$264
This Frontier deal was found by Cheapflights users on 3/7. 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 4/64:20 pm
TYS
-
SFO
1 stop11h 08m
Frontier
Mon 4/136:00 am
SFO
-
TYS
1 stop6h 28m
Frontier
Deal found 3/7$265
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/68:41 pm
BNA
-
SFO
2 stops26h 27m
Multiple Airlines
Mon 4/133:10 pm
SFO
-
BNA
1 stop12h 00m
Multiple Airlines
Deal found 3/9$265
This Frontier deal was found by Cheapflights users on 3/6. 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.
Sat 3/282:49 pm
CVG
-
SFO
1 stop7h 41m
Frontier
Fri 5/86:00 am
SFO
-
CVG
1 stop9h 48m
Frontier
Deal found 3/6$266

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$221
(Frontier)

One-way from

$89
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$486

Good round-trip deal

$278 or less

Good one-way deal

$339 or less
Provider with most accurate pricing for Louisville Intl-San Francisco flight deals.
Provider most trusted by Cheapflights users for Louisville Intl-San Francisco flights.
From Kentucky to San Francisco
One-way flight from Kentucky to San Francisco
Highest demand for flights based on searches. 13% potential increase in price ($60 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Kentucky to San Francisco.
Price to beat on a one-way flight from Kentucky to San Francisco.

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 March 10, 2026.
Use the filters below to find and compare flights from Kentucky to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Tue 5/5

6:30 am-2:05 pm

1 stop10h 35m

San Francisco

Fri 5/8

5:55 am-7:18 pm

1 stop10h 23m

$283

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Sat 5/30

8:20 am-1:29 pm

1 stop8h 09m

San Francisco

Tue 6/2

12:15 pm-11:12 pm

1 stop7h 57m

$349

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Sat 5/30

3:30 pm-8:42 pm

1 stop8h 12m

San Francisco

Tue 6/2

1:45 pm-11:56 pm

1 stop7h 11m

$349

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Fri 4/3

4:30 pm-10:55 pm

1 stop9h 25m

San Francisco

Fri 4/10

5:00 am-3:06 pm

1 stop7h 06m

$349

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Thu 4/23

6:58 pm-8:46 am

2 stops16h 48m

San Francisco

Mon 4/27

5:31 pm-5:58 pm

1 stop21h 27m

$353

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Thu 5/14

8:10 pm-12:20 am

1 stop7h 10m

San Francisco

Wed 5/20

8:55 am-6:35 pm

1 stop6h 40m

$369

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Wed 4/8

7:15 pm-11:35 pm

1 stop7h 20m

San Francisco

Mon 4/13

11:25 pm-9:50 am

1 stop7h 25m

$369

KnoxvilleSan Francisco

TYS - SFO

TYSSFO

Knoxville McGhee Tyson

Sat 8/29

5:45 am-11:20 am

1 stop8h 35m

San Francisco

Sun 9/13

10:35 pm-10:08 am

1 stop8h 33m

$369

BlountvilleSan Francisco

TRI - SFO

TRISFO

Blountville Tri Cities TN/VA

Thu 7/9

6:55 pm-12:15 am

1 stop8h 20m

San Francisco

Sun 7/12

11:45 pm-9:35 am

1 stop6h 50m

$369
Quickest round-trip

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Tue 4/28

5:55 pm-8:55 pm

Nonstop5h 00m

San Francisco

Sat 5/2

10:55 pm-5:15 am

Nonstop4h 20m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $131). Flying from Kentucky to San Francisco in March is currently the most expensive (average of $342). 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.

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?

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

    Airlines like Delta, United Airlines, and Alaska Airlines fly from Kentucky to San Francisco in about 8h 09m. The time it takes to get you to your destination can typically vary by up to 8h 39m. Kentucky and San Francisco are separated by a distance of 2114 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 American Airlines and Delta, with prices starting from $135 and $159, respectively.

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

  • 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 $323, our data indicates the cheapest price to be $149. The most popular route (Nashville Intl - San Francisco), is priced around $238.

  • 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 $131). Flying from Kentucky to San Francisco in March is currently the most expensive (average of $342). 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
South San Francisco
Santa Clara
Santa Cruz
Livermore
Roseville
Watsonville
San Bruno
Sunnyvale
Vacaville
Turlock
San Carlos
San Ramon
Redwood City
Daly City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

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.

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$139Average$278FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$142Average$423FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$466FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$283Average$476FlexibilityNo cancel feeOn-time69%

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