HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$111+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kentucky to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 11, 2026.

This Booking.com deal was found by Cheapflights users on 5/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Fri 8/2812:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 5/6$212
This Mytrip deal was found by Cheapflights users on 5/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:32 pm
TYS
-
SFO
1 stop27h 18m
Frontier
Wed 8/266:00 am
SFO
-
TYS
1 stop10h 37m
Frontier
Deal found 5/6$219
This CheapOair deal was found by Cheapflights users on 5/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:32 pm
TYS
-
SFO
1 stop18h 04m
Frontier
Sun 8/1612:33 pm
SFO
-
TYS
1 stop28h 03m
Frontier
Deal found 5/10$260
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Fri 8/2812:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 5/8$263
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:54 pm
BNA
-
SFO
Nonstop4h 48m
United Airlines
Sat 7/1111:59 pm
SFO
-
BNA
Nonstop4h 38m
United Airlines
Deal found 5/8$264
This Kiwi.com deal was found by Cheapflights users on 5/6. 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.
Wed 6/37:17 pm
BNA
-
SFO
1 stop7h 06m
Frontier
Wed 6/103:26 pm
SFO
-
BNA
2 stops24h 14m
Frontier
Deal found 5/6$267
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:17 pm
BNA
-
SFO
1 stop7h 06m
Frontier
Mon 6/810:50 pm
SFO
-
BNA
2 stops34h 34m
Frontier
Deal found 5/8$268
This Frontier deal was found by Cheapflights users on 5/6. 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.
Thu 7/98:36 pm
CVG
-
SFO
1 stop6h 42m
Frontier
Mon 7/2010:10 pm
SFO
-
CVG
1 stop10h 03m
Frontier
Deal found 5/6$270
This Expedia deal was found by Cheapflights users on 5/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1812:09 pm
BNA
-
SFO
1 stop14h 18m
Frontier
Sat 6/206:00 am
SFO
-
BNA
1 stop27h 24m
Frontier
Deal found 5/10$270
This Super.com deal was found by Cheapflights users on 5/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:20 pm
BNA
-
SFO
1 stop30h 07m
Frontier
Sat 6/139:43 pm
SFO
-
BNA
1 stop11h 41m
Frontier
Deal found 5/8$272
This Booking.com deal was found by Cheapflights users on 5/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Fri 5/2912:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 5/10$273
This CheapOair deal was found by Cheapflights users on 5/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:36 pm
CVG
-
SFO
1 stop14h 25m
Frontier
Mon 6/86:00 am
SFO
-
CVG
1 stop10h 31m
Frontier
Deal found 5/6$274

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 May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$212
(Booking.com)

One-way from

$111
(Expedia)

Popular in

March

Cheapest in

September

Average price

$413

Good round-trip deal

$252 or less

Good one-way deal

$219 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. 13% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 11, 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

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 6/12

9:47 am-3:28 pm

1 stop7h 41m

San Francisco

Sun 6/14

11:59 pm-6:37 am

Nonstop4h 38m

$292

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 8/21

9:31 am-11:33 am

Nonstop5h 02m

San Francisco

Mon 8/24

12:18 pm-7:48 pm

Nonstop4h 30m

$298

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Mon 7/13

5:20 am-11:20 am

2 stops8h 00m

San Francisco

Sat 7/18

5:00 am-5:00 pm

2 stops10h 00m

$312

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Wed 6/3

6:00 am-11:44 am

1 stop7h 44m

San Francisco

Fri 6/5

11:59 pm-6:37 am

Nonstop4h 38m

$313
Quickest round-trip

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Tue 6/2

5:55 pm-8:55 pm

Nonstop5h 00m

San Francisco

Sat 6/6

10:50 pm-5:10 am

Nonstop4h 20m

$328

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 7/9

4:59 pm-7:47 pm

Nonstop4h 48m

San Francisco

Tue 7/21

11:59 pm-6:37 am

Nonstop4h 38m

$337

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Mon 6/8

9:31 am-11:33 am

Nonstop5h 02m

San Francisco

Fri 6/12

12:18 pm-7:48 pm

Nonstop4h 30m

$338

LexingtonSan Francisco

LEX - SFO

LEXSFO

Lexington Blue Grass

Wed 8/19

10:10 am-3:42 pm

1 stop8h 32m

San Francisco

Tue 9/1

6:00 am-5:12 pm

1 stop8h 12m

$341

CincinnatiSan Francisco

CVG - SFO

CVGSFO

Cincinnati Cinci./N. Kentucky

Wed 9/30

6:40 am-12:30 pm

1 stop8h 50m

San Francisco

Wed 9/30

6:50 pm-6:06 am

1 stop8h 16m

$347

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Sat 6/6

2:54 pm-5:42 pm

Nonstop4h 48m

San Francisco

Sat 6/13

11:30 pm-8:41 am

1 stop7h 11m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

How far ahead should I book a flight from Kentucky to San Francisco?

The best time to book flights from Kentucky to San Francisco is 34 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $98). 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 May 11, 2026.

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.

How much does it cost to fly round-trip from Kentucky to San Francisco?

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 11.0 mi from San Francisco’s city center.

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

    Within the past month, 5 users have taken a look at flights from Kentucky to San Francisco.

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

    Airlines like United Airlines, Breeze Airways, and Southwest fly from Kentucky to San Francisco in about 5h 02m. The time it takes to get you to your destination can typically vary by up to 2h 58m. 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?

    $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 $153 and $159, 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 $280, our data indicates the cheapest price to be $74. The most popular route (Nashville Intl - San Francisco), is priced around $237.

  • 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, June is the cheapest month in which you can book a flight from Kentucky to San Francisco (average of $98). 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
South San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
Vallejo
San Lorenzo
Davis
Emeryville
Manteca
Elk Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kentucky to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to San Francisco flights
Newark to San Francisco flights
LaGuardia to San Francisco flights
Santa Rosa to Los Angeles flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
Newark to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Seattle to Las Vegas flights
Seattle to Los Angeles flights
O'Hare Intl to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
San Francisco to Las Vegas flights
Atlanta to Las Vegas flights
Hobby to Las Vegas flights
Dulles Intl to Las Vegas flights
Los Angeles to Las Vegas flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Ontario flights
Dallas/Fort Worth to San Francisco flights
Seattle to San Francisco flights
O'Hare Intl to Los Angeles flights
LaGuardia to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Hobby to Los Angeles flights
Ontario to San Francisco flights
Denver to Las Vegas flights
Detroit to Las Vegas flights
Atlanta to Los Angeles flights
Reagan-National to Los Angeles flights
Dulles Intl to Los Angeles flights
Boston to Las Vegas flights
Santa Ana to Las Vegas flights
Baltimore to Los Angeles flights
John F Kennedy Intl to San Jose flights
San Francisco to Los Angeles flights
Newark to San Jose flights
Orlando to Las Vegas flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
John F Kennedy Intl to Oakland flights
O'Hare Intl to San Francisco flights
George Bush Intcntl to Los Angeles flights
Boston to San Francisco flights
Seattle to San Diego flights
Los Angeles to San Francisco flights
San Francisco to Ontario flights
Dulles Intl to San Francisco flights
Newark to San Diego flights

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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$142Average$424FlexibilityNo cancel feeOn-timeN/A
Breeze AirwaysCheapest$143Average$282FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$477FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$563FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.