HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$105+ Cheap flights from Louisville to San Francisco (SDF - 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
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville 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.

Cheapflights Tip: The best prices from Louisville Intl to San Francisco are usually found in September or October, booked 72 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap flight deals from Louisville to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$204
(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 Louisville Intl to San Francisco
Search Deals
One-way flight from Louisville Intl to San Francisco
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 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 September 2025
Search Deals
Price to beat on a round-trip flight from Louisville Intl to San Francisco.
Search Deals
Price to beat on a one-way flight from Louisville Intl to San Francisco.
Search Deals

Find flight deals from Louisville to San Francisco

Cheapest flights from Louisville to San Francisco
Explore the most affordable flight options available from Louisville to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 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.
Thu 10/302:57 pmSDF - SFO
1 stop20h 47mMultiple Airlines
Mon 11/105:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Deal found 9/10$204
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.
Fri 10/312:57 pmSDF - SFO
1 stop9h 38mMultiple Airlines
Thu 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.
Thu 10/232:57 pmSDF - SFO
1 stop9h 56mMultiple Airlines
Sun 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.
Fri 11/79:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Mon 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.
Fri 9/199:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Mon 9/2212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/10$223
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.
Fri 10/242:57 pmSDF - SFO
1 stop10h 01mMultiple Airlines
Sun 10/262:47 pmSFO - SDF
1 stop20h 15mMultiple Airlines
Deal found 9/10$225
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.
Fri 10/242:57 pmSDF - SFO
1 stop10h 01mMultiple Airlines
Wed 10/298:00 amSFO - SDF
1 stop27h 02mMultiple Airlines
Deal found 9/11$233
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.
Wed 10/295:31 pmSDF - SFO
2 stops24h 40mMultiple Airlines
Thu 11/65:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Deal found 9/10$237
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:00 amSDF - SFO
1 stop8h 37mUnited Airlines
Sat 11/87:00 amSFO - SDF
1 stop7h 16mUnited Airlines
Deal found 9/10$238
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.
Fri 10/249:43 amSDF - SFO
Nonstop5h 19mMultiple Airlines
Thu 10/305:45 amSFO - SDF
1 stop29h 17mMultiple Airlines
Deal found 9/11$240
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.
Wed 10/295:31 pmSDF - SFO
2 stops24h 40mMultiple Airlines
Sun 11/95:45 amSFO - SDF
1 stop7h 27mMultiple Airlines
Deal found 9/10$244
This Breeze Airways 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Mon 9/2912:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 9/11$248

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 September 11, 2025.
Use the filters below to find and compare flights from Louisville to San Francisco that are best for you.

Fly from

Louisville

Fly to

San Francisco

Route

Depart

Return

Price

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 11/14

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Mon 11/17

12:47 pm-8:12 pm

Nonstop4h 25m

$218

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 11/7

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Mon 11/10

12:47 pm-8:12 pm

Nonstop4h 25m

$218

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 9/19

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Mon 9/22

12:47 pm-8:12 pm

Nonstop4h 25m

$223

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Mon 11/3

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Fri 11/7

12:47 pm-8:12 pm

Nonstop4h 25m

$228

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 10/24

2:57 pm-9:58 pm

1 stop10h 01m

San Francisco

Wed 10/29

8:00 am-2:02 pm

1 stop27h 02m

$233

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 11/7

5:20 pm-5:49 pm

1 stop27h 29m

San Francisco

Fri 11/14

5:53 pm-4:12 pm

2 stops43h 19m

$244

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Mon 9/22

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

Mon 9/29

12:47 pm-8:12 pm

Nonstop4h 25m

$248

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Fri 10/24

2:57 pm-9:58 pm

1 stop10h 01m

San Francisco

Tue 10/28

6:28 pm-2:02 pm

2 stops40h 34m

$256

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Sun 10/26

2:57 pm-8:38 pm

2 stops32h 41m

San Francisco

Thu 10/30

5:45 am-2:02 pm

1 stop29h 17m

$270

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

Wed 10/22

12:54 pm-6:56 pm

1 stop9h 02m

San Francisco

Mon 10/27

7:15 am-7:10 pm

1 stop8h 55m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 results
1
2

Best time to book a flight from Louisville to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Louisville 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 Louisville to San Francisco

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to San Francisco. Price data was last updated on August 29, 2025.

The best time to book flights from Louisville to San Francisco is 72 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 Louisville to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Louisville to San Francisco (average of $276). Flying from Louisville 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 SDF to SFO?

Find hourly flight availability from Louisville 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 September 11, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 36% on flights from Louisville to San Francisco by exploring options for tickets in the morning.

What is the cheapest day to fly from Louisville to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Louisville to San Francisco. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Louisville to San Francisco flight should consider departing on Monday 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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Breeze Airways, and Delta from Louisville to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Breeze Airways
8.0
Very good
205 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Louisville to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    This flight path from Louisville Intl to San Francisco was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    A quick flight from Louisville to San Francisco can take about 5h 19m. Breeze Airways provides one of the quickest options available for as low as $218. The distance from Louisville to San Francisco is about 1984 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Louisville to San Francisco round-trip?

    According to our current data, Breeze Airways ($159), Delta ($222), and Southwest ($254) offers the cheapest pricing from Louisville to San Francisco. Breeze Airways is currently priced 57% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Louisville to San Francisco one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $105. Users have also found prices from $109 and $122 on Breeze Airways and American Airlines, respectively.

  • What are the cheapest flights from Louisville to San Francisco?

    Looking for the cheapest flight from Louisville to San Francisco? While on average our users pay $234, our data indicates the cheapest price to be $139. The most popular route (Louisville Intl - San Francisco), is priced around $212.

  • Can I find deals for flights from Louisville to San Francisco that include hotel bookings?

    Yes. In addition to deals on Louisville to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to San Francisco.

  • Can I find deals for business class flights from Louisville to San Francisco?

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Louisville to San Francisco (average of $276). Flying from Louisville 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

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 Louisville to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Las Vegas flights
Nashville to Las Vegas flights
Cincinnati to Los Angeles flights
Nashville to Los Angeles flights
Louisville to Las Vegas flights
Nashville to San Francisco flights
Cincinnati to San Francisco flights
Cincinnati to Ontario flights
Knoxville to Las Vegas flights
Louisville to Los Angeles flights
Nashville to San Diego flights
Nashville to Ontario flights
Cincinnati to Santa Ana flights
Nashville to Burbank flights
Cincinnati to San Diego flights
Knoxville to Los Angeles flights
Nashville to Santa Ana flights
Cincinnati to Burbank flights
Cincinnati to Reno flights
Nashville to Sacramento flights
Knoxville to Ontario flights
Nashville to Fresno flights
Louisville to Ontario flights
Blountville to Las Vegas flights
Nashville to Reno flights
Nashville to San Jose flights
Louisville to San Diego flights
Lexington to Las Vegas flights
Knoxville to Sacramento flights
Cincinnati to Sacramento flights
Lexington to San Diego flights
Lexington to Los Angeles flights
Knoxville to San Diego flights
Nashville to Oakland flights
Louisville to Santa Ana flights
Knoxville to Santa Ana flights
Cincinnati to Long Beach flights
Cincinnati to Monterey flights
Lexington to San Francisco flights
Nashville to Long Beach flights
Cincinnati to Palm Springs flights
Evansville to Las Vegas flights
Lexington to Ontario flights
Knoxville to San Jose flights
Knoxville to San Francisco flights
Cincinnati to San Jose flights
Louisville to San Jose flights
Lexington to Santa Ana flights
Louisville to Burbank flights

Top 5 airlines flying from Louisville to San Francisco

Discover the top 5 airlines that operate flights from Louisville 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$159Average$271FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$222Average$414FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$422FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$506FlexibilityNo 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.