HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$125+ Cheap flights from San Francisco to Louisville (SFO - SDF)

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SDF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Louisville 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 San Francisco to Louisville Intl are usually found in September or August, booked 88 days in advance, depart on a Wednesday or Monday and return on a Monday

Cheap flight deals from San Francisco to Louisville

Cheapest flights from San Francisco to Louisville
Explore the most affordable flight options available from San Francisco to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Fri 12/1212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Fri 12/199:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 12/9$348
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2912:47 pmSFO - SDF
Nonstop4h 25mMultiple Airlines
Mon 1/58:53 pmSDF - SFO
3 stops29h 06mMultiple Airlines
Deal found 12/9$379
This Breeze Airways deal was found by Cheapflights users on 12/9. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Mon 1/59:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 12/9$408
This Super.com deal was found by Cheapflights users on 12/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Fri 1/29:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 12/9$533
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/2812:30 amSFO - SDF
1 stop8h 36mUnited Airlines
Thu 1/18:00 amSDF - SFO
1 stop6h 47mUnited Airlines
Deal found 12/10$540
This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:30 amSFO - SDF
1 stop8h 36mUnited Airlines
Thu 1/18:00 amSDF - SFO
1 stop6h 47mUnited Airlines
Deal found 12/9$546
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2912:47 pmSFO - SDF
Nonstop4h 25mMultiple Airlines
Fri 1/25:05 amSDF - SFO
2 stops29h 43mMultiple Airlines
Deal found 12/9$548
This Southwest deal was found by Cheapflights users on 12/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:45 amSFO - SDF
1 stop9h 10mSouthwest
Thu 1/16:05 amSDF - SFO
1 stop6h 45mSouthwest
Deal found 12/9$549

Find flight deals from San Francisco to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Louisville (SDF). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$301
(Delta)

One-way from

$125
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$584

Good round-trip deal

$171 or less

Good one-way deal

$99 or less
Provider with most accurate pricing for San Francisco-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Louisville Intl flights.
Search Deals
From San Francisco to Louisville Intl
Search Deals
One-way flight from San Francisco to Louisville Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to Louisville Intl.
Search Deals
Price to beat on a one-way flight from San Francisco to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Louisville 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 December 12, 2025.
Use the filters below to find and compare flights from San Francisco to Louisville that are best for you.

Fly from

San Francisco

Fly to

Louisville

Route

Depart

Return

Price

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 2/18

2:05 pm-11:58 pm

1 stop6h 53m

Louisville Intl

Sat 2/21

5:00 pm-10:57 pm

1 stop8h 57m

$334

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 1/1

7:00 am-7:42 pm

1 stop9h 42m

Louisville Intl

Wed 1/7

11:14 am-7:19 pm

2 stops11h 05m

$335

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Fri 1/16

9:00 am-10:12 pm

1 stop10h 12m

Louisville Intl

Mon 1/19

6:32 pm-11:12 pm

1 stop7h 40m

$337

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 2/18

11:05 am-10:57 pm

2 stops8h 52m

Louisville Intl

Sat 2/21

10:45 am-3:12 pm

1 stop7h 27m

$339

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 1/22

9:50 am-9:10 pm

1 stop8h 20m

Louisville Intl

Sat 1/24

6:30 am-11:15 am

1 stop7h 45m

$376

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 12/29

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

Mon 1/5

8:53 pm-10:59 pm

3 stops29h 06m

$379

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 1/5

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

Thu 1/8

7:00 am-1:18 pm

3 stops33h 18m

$388

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 12/29

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

Mon 1/5

9:43 am-12:02 pm

Nonstop5h 19m

$408

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 1/22

8:25 am-7:43 pm

1 stop8h 18m

Louisville Intl

Sun 1/25

9:00 am-1:29 pm

1 stop7h 29m

$411

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 1/29

12:46 pm-11:06 pm

1 stop7h 20m

Louisville Intl

Sun 2/1

7:00 am-12:55 pm

1 stop8h 55m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from San Francisco to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Louisville in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Louisville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Louisville

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Louisville. Price data was last updated on December 5, 2025.

The price you pay for your flight from San Francisco to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from San Francisco to Louisville (average of $112). Flying from San Francisco to Louisville in June is currently the most expensive (average of $252). 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 SFO to SDF?

Find hourly flight availability from San Francisco to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Louisville in the afternoon. If you’re flexible enough to do this you can expect to save up to 55% on your trip compared to booking a flight at noon.

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

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated December 12, 2025.
Peruse reviews from past customers who have flown with Breeze Airways, Southwest, and Delta from San Francisco to Louisville 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.
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
Breeze Airways
8.2
Very good
244 reviews
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
Southwest
7.9
Good
4,253 reviews
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
Delta
7.9
Good
8,007 reviews
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
United Airlines
7.4
Good
9,094 reviews
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
American Airlines
7.2
Good
11,049 reviews
Breeze Airways
8.2
Very good
244 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.2

Crew

8.8

Overall

8.2

Food

6.7

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Louisville. 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 San Francisco to Louisville flight route?

    This flight path from San Francisco to Louisville Intl 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 San Francisco to Louisville?

    There are many flights that can get you from San Francisco to Louisville in 6h 53m. Fly via Delta, American Airlines, or Southwest to get the fastest option. Airlines will cover a distance of 1984 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $129, Breeze Airways will fly you from San Francisco to Louisville and back. In addition to Breeze Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from $208 and $266, respectively. Users have found that Breeze Airways is 70% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from San Francisco to Louisville are Breeze Airways ($99), American Airlines ($137), and United Airlines ($159).

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

    Looking at all options, your cheapest flight can be booked for $89. While the most popular route (San Francisco - Louisville Intl) can be booked for $334 on average, our data indicates $172 when flying from San Francisco to Louisville.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Louisville (average of $112). Flying from San Francisco to Louisville in June is currently the most expensive (average of $252). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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 San Francisco to Louisville

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

Top 5 airlines flying from San Francisco to Louisville

Discover the top 5 airlines that operate flights from San Francisco to Louisville. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$153Average$290FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$234Average$465FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$266Average$469FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$299Average$445FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$330Average$553FlexibilityNo 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.