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$100+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SDF
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to Louisville Intl are usually found in October or August, 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 septiembre 11, 2025.

Round-trip from

$218
(Breeze Airways)

One-way from

$100
(Southwest)

Popular in

December

Cheapest in

October

Average price

$365

Good round-trip deal

$238 or less

Good one-way deal

$110 or less
From San Francisco to Louisville Intl
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One-way flight from San Francisco to Louisville Intl
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Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Francisco to Louisville Intl.
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Price to beat on a one-way flight from San Francisco to Louisville Intl.
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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 septiembre 11, 2025.

This Breeze Airways deal was found by Cheapflights users on 9/9. 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.
vie. 9/1212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
vie. 9/199:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 9/9$218
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/122:35 pmSFO - SDF
1 stop6h 10mSouthwest
sáb. 11/157:10 amSDF - SFO
1 stop6h 50mSouthwest
Deal found 9/10$220
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/3112:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
vie. 11/79:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 9/10$225
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.
vie. 10/3112:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
lun. 11/39:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
Deal found 9/11$228
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mié. 10/228:00 amSFO - SDF
1 stop27h 02mMultiple Airlines
mié. 10/295:31 pmSDF - SFO
2 stops24h 40mMultiple Airlines
Deal found 9/9$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.
mar. 9/3011:19 amSFO - SDF
1 stop8h 11mUnited Airlines
mié. 10/110:55 amSDF - SFO
1 stop7h 35mUnited Airlines
Deal found 9/10$243
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mié. 10/18:00 amSFO - SDF
1 stop28h 20mMultiple Airlines
mar. 10/79:40 pmSDF - SFO
2 stops26h 42mMultiple Airlines
Deal found 9/9$244
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mié. 10/18:00 amSFO - SDF
1 stop28h 20mMultiple Airlines
lun. 10/62:57 pmSDF - SFO
2 stops22h 58mMultiple Airlines
Deal found 9/9$247
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3012:47 amSFO - SDF
1 stop10h 16mAmerican Airlines
mar. 10/72:19 pmSDF - SFO
1 stop8h 02mAmerican Airlines
Deal found 9/9$249
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.
vie. 10/318:09 pmSFO - SDF
2 stops39h 53mMultiple Airlines
vie. 11/75:20 pmSDF - SFO
1 stop27h 29mMultiple Airlines
Deal found 9/10$250

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 septiembre 11, 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

lun. 10/27

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

vie. 10/31

9:43 am-12:02 pm

Nonstop5h 19m

$218

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

lun. 9/15

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

vie. 9/19

9:43 am-12:02 pm

Nonstop5h 19m

$218

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

vie. 10/31

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

lun. 11/3

9:43 am-12:02 pm

Nonstop5h 19m

$228

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

mar. 9/30

11:19 am-10:30 pm

1 stop8h 11m

Louisville Intl

mié. 10/1

10:55 am-3:30 pm

1 stop7h 35m

$243

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

vie. 9/19

12:47 pm-8:12 pm

Nonstop4h 25m

Louisville Intl

lun. 9/22

9:43 am-12:02 pm

Nonstop5h 19m

$258

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

mié. 10/1

8:00 am-5:34 pm

1 stop6h 34m

Louisville Intl

lun. 10/6

4:44 pm-8:43 pm

1 stop6h 59m

$260

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

mié. 10/8

6:30 am-5:30 pm

1 stop8h 00m

Louisville Intl

mié. 10/15

6:00 am-9:40 am

1 stop6h 40m

$270

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

lun. 9/29

12:45 am-11:49 am

1 stop8h 04m

Louisville Intl

mié. 10/8

12:54 pm-5:52 pm

1 stop7h 58m

$277

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

jue. 10/2

11:00 pm-9:46 am

1 stop7h 46m

Louisville Intl

mié. 10/8

10:30 am-5:51 pm

1 stop10h 21m

$277

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

jue. 10/2

11:00 pm-9:46 am

1 stop7h 46m

Louisville Intl

mar. 10/7

8:17 am-1:35 pm

1 stop8h 18m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 20 results
1
2

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 August 29, 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 septiembre 11, 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 septiembre 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Breeze Airways, 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.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

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 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.

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

    There are many flights that can get you from San Francisco to Louisville in 4h 25m. Fly via Breeze Airways or United Airlines 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 $156, 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 $228 and $266, respectively. Users have found that Breeze Airways is 63% cheaper than the other options available to this destination.

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

    Looking at all options, your cheapest flight can be booked for $88. While the most popular route (San Francisco - Louisville Intl) can be booked for $218 on average, our data indicates $213 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

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$156Average$288FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$228Average$454FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$266Average$468FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$299Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$338Average$569FlexibilityNo cancel feeOn-time69%

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