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$114+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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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 April 29, 2026.

This Mytrip deal was found by Cheapflights users on 4/28. 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.
Fri 5/89:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Mon 5/1112:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 4/28$225
This CheapOair deal was found by Cheapflights users on 4/28. 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 6/18:32 pm
TYS
-
SFO
1 stop18h 15m
Frontier
Wed 6/106:00 am
SFO
-
TYS
1 stop10h 37m
Frontier
Deal found 4/28$226
This Frontier deal was found by Cheapflights users on 4/24. 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 4/304:28 pm
TYS
-
SFO
1 stop19h 45m
Frontier
Fri 5/86:00 am
SFO
-
TYS
1 stop10h 33m
Frontier
Deal found 4/24$236
This Breeze Airways deal was found by Cheapflights users on 4/24. 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 4/24$238
This Frontier deal was found by Cheapflights users on 4/26. 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 5/298:19 pm
TYS
-
SFO
1 stop14h 42m
Frontier
Fri 6/56:00 am
SFO
-
TYS
1 stop10h 33m
Frontier
Deal found 4/26$257
This Frontier deal was found by Cheapflights users on 4/28. 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 5/298:19 pm
TYS
-
SFO
1 stop7h 04m
Frontier
Mon 6/16:00 am
SFO
-
TYS
1 stop10h 33m
Frontier
Deal found 4/28$270
This Frontier deal was found by Cheapflights users on 4/28. 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.
Tue 6/239:30 pm
CVG
-
SFO
1 stop16h 04m
Frontier
Sat 6/2710:10 pm
SFO
-
CVG
1 stop10h 04m
Frontier
Deal found 4/28$270
This Booking.com deal was found by Cheapflights users on 4/26. 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.
Fri 5/89:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Fri 5/1512:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Deal found 4/26$271
This Travelocity deal was found by Cheapflights users on 4/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:00 pm
CVG
-
SFO
1 stop16h 28m
Frontier
Thu 6/1810:58 pm
SFO
-
CVG
1 stop17h 49m
Frontier
Deal found 4/28$277
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 6/276:31 am
BNA
-
SFO
Nonstop4h 49m
United Airlines
Tue 7/712:45 am
SFO
-
BNA
1 stop7h 02m
United Airlines
Deal found 4/28$277
This Breeze Airways deal was found by Cheapflights users on 4/27. 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.
Tue 8/189:54 am
CVG
-
SFO
Nonstop5h 08m
Breeze Airways
Sun 8/2312:47 pm
SFO
-
CVG
Nonstop4h 36m
Breeze Airways
Deal found 4/27$278
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 7/232:54 pm
BNA
-
SFO
Nonstop4h 48m
United Airlines
Sun 7/2611:59 pm
SFO
-
BNA
Nonstop4h 38m
United Airlines
Deal found 4/29$278

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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$226
(CheapOair)

One-way from

$114
(Booking.com)

Popular in

March

Cheapest in

September

Average price

$467

Good round-trip deal

$308 or less

Good one-way deal

$119 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. 12% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 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

Wed 6/10

7:36 pm-11:58 pm

1 stop6h 22m

San Francisco

Mon 6/15

2:30 pm-12:32 am

1 stop8h 02m

$298

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 6/26

7:36 pm-11:58 pm

1 stop6h 22m

San Francisco

Wed 7/1

11:39 am-10:24 pm

1 stop8h 45m

$298

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Tue 9/15

10:20 am-5:20 pm

2 stops9h 00m

San Francisco

Sat 9/19

10:30 pm-9:55 am

1 stop9h 25m

$307

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Wed 8/26

12:30 pm-7:15 pm

2 stops8h 45m

San Francisco

Tue 9/8

1:35 pm-10:00 pm

1 stop6h 25m

$307

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Sat 7/18

11:10 am-6:30 pm

1 stop9h 20m

San Francisco

Thu 7/30

11:59 pm-6:37 am

Nonstop4h 38m

$314

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Sat 6/6

6:25 pm-9:10 pm

Nonstop4h 45m

San Francisco

Sat 6/13

3:25 pm-12:10 am

1 stop6h 45m

$333
Quickest round-trip

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 9/24

8:08 am-11:00 am

Nonstop4h 52m

San Francisco

Mon 9/28

11:59 pm-6:30 am

Nonstop4h 31m

$337

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Thu 7/9

2:54 pm-5:42 pm

Nonstop4h 48m

San Francisco

Tue 7/21

11:59 pm-6:37 am

Nonstop4h 38m

$337

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Mon 6/29

6:42 pm-12:15 am

1 stop7h 33m

San Francisco

Fri 7/3

11:59 pm-6:37 am

Nonstop4h 38m

$347

NashvilleSan Francisco

BNA - SFO

BNASFO

Nashville Intl

Fri 7/31

4:59 pm-7:47 pm

Nonstop4h 48m

San Francisco

Sat 8/22

11:59 pm-9:39 am

1 stop7h 40m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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

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.

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, Southwest, and Delta fly from Kentucky to San Francisco in about 4h 52m. 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 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?

    $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 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 $356, our data indicates the cheapest price to be $119. 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
Emeryville
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove

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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$142Average$423FlexibilityNo cancel feeOn-timeN/A
Breeze AirwaysCheapest$143Average$283FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$473FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$423FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$278Average$562FlexibilityNo cancel feeOn-time69%

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