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$133+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SDF
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Find cheap flights from San Francisco to Louisville with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Francisco to Louisville Intl are usually found in August or September, booked 88 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 January 27, 2026.

This Booking.com deal was found by Cheapflights users on 1/26. 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 5/1512:18 pm
SFO
-
SDF
Nonstop4h 30m
Breeze Airways
Mon 5/189:31 am
SDF
-
SFO
Nonstop5h 02m
Breeze Airways
Deal found 1/26$353
This American Airlines deal was found by Cheapflights users on 1/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:00 am
SFO
-
SDF
1 stop8h 37m
American Airlines
Sat 2/217:40 am
SDF
-
SFO
1 stop10h 29m
American Airlines
Deal found 1/26$367
This Southwest deal was found by Cheapflights users on 1/25. 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 2/215:00 am
SFO
-
SDF
1 stop8h 45m
Southwest
Tue 2/246:45 am
SDF
-
SFO
2 stops11h 10m
Southwest
Deal found 1/25$372
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:50 pm
SFO
-
SDF
1 stop7h 38m
Delta
Wed 3/412:12 pm
SDF
-
SFO
1 stop10h 44m
Delta
Deal found 1/27$376
This Southwest deal was found by Cheapflights users on 1/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:55 am
SFO
-
SDF
2 stops10h 40m
Southwest
Mon 3/98:05 pm
SDF
-
SFO
1 stop7h 00m
Southwest
Deal found 1/27$381
This Southwest deal was found by Cheapflights users on 1/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/239:30 pm
SFO
-
SDF
1 stop13h 05m
Southwest
Wed 3/46:45 am
SDF
-
SFO
2 stops11h 10m
Southwest
Deal found 1/27$383
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1812:30 am
SFO
-
SDF
1 stop6h 34m
American Airlines
Sat 3/73:33 pm
SDF
-
SFO
1 stop8h 23m
American Airlines
Deal found 1/27$385
This American Airlines deal was found by Cheapflights users on 1/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/42:33 pm
SFO
-
SDF
1 stop6h 25m
American Airlines
Sat 4/188:30 am
SDF
-
SFO
1 stop8h 37m
American Airlines
Deal found 1/26$388
This Southwest deal was found by Cheapflights users on 1/25. 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.
Mon 2/237:35 am
SFO
-
SDF
2 stops12h 25m
Southwest
Mon 3/24:50 pm
SDF
-
SFO
1 stop8h 15m
Southwest
Deal found 1/25$390
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 2/262:05 pm
SFO
-
SDF
1 stop6h 53m
Delta
Sun 3/16:36 pm
SDF
-
SFO
1 stop7h 49m
Delta
Deal found 1/25$391

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$367
(American Airlines)

One-way from

$133
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$648

Good one-way deal

$199 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. 18% potential increase in price ($104 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 27, 2026.
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

Tue 2/24

10:36 am-11:16 pm

1 stop9h 40m

Louisville Intl

Tue 3/3

10:49 am-5:14 pm

1 stop9h 25m

$367

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Sat 2/21

10:50 am-9:35 pm

1 stop7h 45m

Louisville Intl

Tue 2/24

6:00 am-10:30 am

1 stop7h 30m

$367

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 2/17

12:30 am-10:04 am

1 stop6h 34m

Louisville Intl

Sat 2/21

10:49 am-5:14 pm

1 stop9h 25m

$367

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Tue 2/24

11:30 am-11:20 pm

2 stops8h 50m

Louisville Intl

Tue 3/3

5:10 pm-9:50 pm

1 stop7h 40m

$372

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 4/15

5:00 am-2:31 pm

1 stop6h 31m

Louisville Intl

Thu 4/23

9:07 am-1:27 pm

1 stop7h 20m

$381

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Sat 2/28

7:55 am-9:35 pm

2 stops10h 40m

Louisville Intl

Mon 3/9

8:05 pm-12:05 am

1 stop7h 00m

$381

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 2/23

11:55 pm-1:06 pm

1 stop10h 11m

Louisville Intl

Mon 3/2

5:54 pm-11:24 pm

1 stop8h 30m

$385

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Wed 2/18

12:30 am-10:04 am

1 stop6h 34m

Louisville Intl

Sat 3/7

3:33 pm-8:56 pm

1 stop8h 23m

$385

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Mon 3/23

11:25 pm-10:30 am

1 stop8h 05m

Louisville Intl

Thu 3/26

8:05 pm-12:05 am

1 stop7h 00m

$385

San FranciscoLouisville

SFO - SDF

SFOSDF

San Francisco

Thu 3/26

11:25 pm-9:55 am

1 stop7h 30m

Louisville Intl

Mon 3/30

11:15 am-7:15 pm

2 stops11h 00m

$390

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Louisville flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

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 $243). 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.

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 January 27, 2026.
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
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Breeze Airways
8.2
Very good
263 reviews
Breeze Airways
8.2
Very good
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Southwest
8.0
Very good
4,268 reviews
Breeze Airways
8.2
Very good
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Delta
7.9
Good
8,119 reviews
Breeze Airways
8.2
Very good
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
United Airlines
7.4
Good
9,206 reviews
Breeze Airways
8.2
Very good
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
American Airlines
7.2
Good
11,198 reviews
Breeze Airways
8.2
Very good
263 reviews

Crew

8.7

Food

6.7

Comfort

8.2

Overall

8.2

Boarding

8.3

Entertainment

6.6

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.

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 7h 45m. Fly via 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 $134, 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 United Airlines - these airlines can fly you to your destination from $171 and $217, 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 ($165).

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

    Looking at all options, your cheapest flight can be booked for $139. While the most popular route (San Francisco - Louisville Intl) can be booked for $298 on average, our data indicates $239 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 $243). 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$134Average$279FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$171Average$479FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$217Average$560FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$476FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$299Average$451FlexibilityNo cancel feeOn-time71%

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