HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$119+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SDF
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 August or October, booked 40 days in advance, depart on a Wednesday or Saturday and return on a Monday

Cheap 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 July 30, 2025.

Round-trip from

$188
(Breeze Airways)

One-way from

$119
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$419

Good round-trip deal

$252 or less

Good one-way deal

$134 or less
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. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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

Find 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 July 30, 2025.

This Breeze Airways deal was found by Cheapflights users on 7/28. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2212:29 pmSFO - SDF
Nonstop4h 26mBreeze Airways
Mon 8/259:37 amSDF - SFO
Nonstop5h 07mBreeze Airways
Deal found 7/28$188
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1610:00 amSFO - SDF
1 stop8h 36mAmerican Airlines
Wed 9/177:00 amSDF - SFO
1 stop14h 01mAmerican Airlines
Deal found 7/29$297
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:45 amSFO - SDF
1 stop8h 04mDelta
Sat 10/113:00 pmSDF - SFO
1 stop10h 35mDelta
Deal found 7/29$311
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:35 amSFO - SDF
2 stops11h 05mSouthwest
Wed 10/111:25 amSDF - SFO
1 stop6h 15mSouthwest
Deal found 7/29$316

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 July 30, 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

Fri 8/22

12:29 pm-7:55 pm

Nonstop4h 26m

Louisville Intl

Mon 8/25

9:37 am-11:44 am

Nonstop5h 07m

$188

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 9/16

10:00 am-9:36 pm

1 stop8h 36m

Louisville Intl

Wed 9/17

7:00 am-6:01 pm

1 stop14h 01m

$297

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Fri 10/3

12:45 am-11:49 am

1 stop8h 04m

Louisville Intl

Wed 10/8

6:00 am-10:16 am

1 stop7h 16m

$311

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 9/24

8:35 am-10:40 pm

2 stops11h 05m

Louisville Intl

Wed 10/1

11:25 am-2:40 pm

1 stop6h 15m

$316

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 9/18

10:37 pm-3:20 pm

1 stop13h 43m

$119

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Fri 9/19

12:47 pm-8:12 pm

Nonstop4h 25m

$120

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 9/9

8:00 am-11:03 pm

1 stop12h 03m

$147

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 9/8

12:35 am-11:58 am

1 stop8h 23m

$156

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 9/9

8:35 am-10:40 pm

2 stops11h 05m

$161

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 9/29

12:43 am-1:10 pm

1 stop9h 27m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 25, 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 40 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, January is the cheapest month in which you can book a flight from San Francisco to Louisville (average of $299). Flying from San Francisco to Louisville in April is currently the most expensive (average of $369). 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 July 30, 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 54% on your trip compared to booking a flight in the evening.

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 July 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and Breeze Airways 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.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Breeze Airways
8.0
Very good
191 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Currently priced at $188, 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 American Airlines and Delta - these airlines can fly you to your destination from $297 and $311, respectively. Users have found that Breeze Airways is 55% 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 ($120), American Airlines ($147), and Delta ($156).

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

    Looking at all options, your cheapest flight can be booked for $102. While the most popular route (San Francisco - Louisville Intl) can be booked for $198 on average our data indicates $231 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, January is the cheapest month in which you can book a flight from San Francisco to Louisville (average of $299). Flying from San Francisco to Louisville in April is currently the most expensive (average of $369). 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
San Francisco to Nashville flights
Ontario to Nashville flights
Santa Ana to Nashville flights
Burbank to Nashville flights
Fresno to Lexington flights
Sacramento to Nashville flights
Fresno to Louisville flights
Fresno to Cincinnati flights
San Diego to Nashville flights
Los Angeles to Cincinnati flights
Oakland to Nashville flights
Ontario to Cincinnati flights
San Jose to Nashville flights
San Luis Obispo to Nashville flights
Los Angeles to Knoxville flights
Las Vegas to Nashville flights
Santa Ana to Knoxville flights
Fresno to Nashville flights
Long Beach to Nashville flights
Santa Ana to Cincinnati flights
Ontario to Knoxville flights
Ontario to Louisville flights
Las Vegas to Cincinnati flights
San Francisco to Knoxville flights
San Francisco to Cincinnati flights
Los Angeles to Louisville flights
Palm Springs to Nashville flights
Burbank to Knoxville flights
San Diego to Cincinnati flights
Los Angeles to Lexington flights
San Diego to Knoxville flights
San Diego to Lexington flights
Sacramento to Cincinnati flights
Santa Ana to Louisville flights
Sacramento to Knoxville flights
Bakersfield to Nashville flights
San Francisco to Lexington flights
San Jose to Louisville flights
Reno to Nashville flights
Burbank to Cincinnati flights
Burbank to Louisville flights
San Jose to Cincinnati flights
Ontario to Lexington flights
Las Vegas to Louisville flights
Sacramento to Lexington flights
Reno to Cincinnati flights
San Jose to Lexington flights
Long Beach to Cincinnati 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$156Average$284FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$178Average$469FlexibilityNo cancel feeOn-time63%
DeltaCheapest$228Average$459FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$567FlexibilityNo 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.