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$129+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SFO
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to San Francisco are usually found in September or August, booked 72 days in advance, depart on a Monday or Tuesday 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 julio 30, 2025.

Round-trip from

$198
(Breeze Airways)

One-way from

$109
(Breeze Airways)

Popular in

February

Cheapest in

September

Average price

$381

Good round-trip deal

$218 or less

Good one-way deal

$154 or less
From Louisville Intl to San Francisco
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One-way flight from Louisville Intl to San Francisco
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Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Louisville Intl to San Francisco.
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Price to beat on a one-way flight from Louisville Intl to San Francisco.
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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 julio 30, 2025.

This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/89:43 amSDF - SFO
Nonstop5h 19mBreeze Airways
vie. 9/1212:47 pmSFO - SDF
Nonstop4h 25mBreeze Airways
Deal found 7/28$204
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/307:00 amSDF - SFO
1 stop14h 01mAmerican Airlines
mar. 10/78:00 amSFO - SDF
1 stop12h 03mAmerican Airlines
Deal found 7/28$283
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/2312:31 pmSDF - SFO
1 stop8h 29mDelta
vie. 9/2612:45 amSFO - SDF
1 stop8h 04mDelta
Deal found 7/28$311
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/303:20 pmSDF - SFO
2 stops9h 20mSouthwest
mar. 10/72:20 pmSFO - SDF
1 stop6h 15mSouthwest
Deal found 7/28$316

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 julio 30, 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

lun. 9/8

9:43 am-12:02 pm

Nonstop5h 19m

San Francisco

vie. 9/12

12:47 pm-8:12 pm

Nonstop4h 25m

$204

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mar. 9/30

7:00 am-6:01 pm

1 stop14h 01m

San Francisco

mar. 10/7

8:00 am-11:03 pm

1 stop12h 03m

$283

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mar. 9/23

12:31 pm-6:00 pm

1 stop8h 29m

San Francisco

vie. 9/26

12:45 am-11:49 am

1 stop8h 04m

$311

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mar. 9/30

3:20 pm-9:40 pm

2 stops9h 20m

San Francisco

mar. 10/7

2:20 pm-11:35 pm

1 stop6h 15m

$316

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

lun. 8/11

9:37 am-11:44 am

Nonstop5h 07m

$129

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mié. 10/22

2:13 pm-10:09 pm

1 stop10h 56m

$147

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mar. 8/26

11:25 am-5:55 pm

1 stop9h 30m

$163

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

jue. 8/14

9:13 pm-7:44 pm

1 stop25h 31m

$168

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

mié. 9/17

7:00 am-11:38 am

1 stop7h 38m

$208

LouisvilleSan Francisco

SDF - SFO

SDFSFO

Louisville Intl

vie. 8/8

6:00 am-10:12 am

1 stop7h 12m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 25, 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 $358). 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 julio 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 40% 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 July 27, 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 julio 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and Breeze Airways 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
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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 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.

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

    According to our current data, Breeze Airways ($198), American Airlines ($293), and Delta ($311) offers the cheapest pricing from Louisville to San Francisco. Breeze Airways is currently priced 45% 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 Breeze Airways. According to our data, you can fly for as low as $109. Users have also found prices from $147 and $163 on American Airlines and Southwest, 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 $204, our data indicates the cheapest price to be $113. The most popular route (Louisville Intl - San Francisco), is priced around $204.

  • 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 $358). 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
Mountain View
Santa Cruz
South San Francisco
Livermore
Turlock
Manteca
Antioch
Hollister
Watsonville
Sunnyvale
Newark
Milpitas
Campbell
Foster City
Capitola
Santa Clara
San Leandro
Burlingame
Redwood City

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$158Average$262FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$222Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$425FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$262Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$505FlexibilityNo cancel feeOn-time69%

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