SFO - SDF

$131 Find Cheap Flights from San Francisco to Louisville - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Louisville departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$214
Typical prices: $278-$459
Breeze Airways
Fri 8/28Mon 8/31
SFO - SDF • Non-stop
Cheapest one-way
$131
Typical prices: $159-$254
American Airlines
Thu 8/6
SFO - SDF • 1 stop
Nonstop flights
2 days a week
Mon, Fri
You can fly direct with Breeze Airways. Average duration is 4h 30m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $214 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $306 (round-trip)
Shortest trip • 6h 24m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Louisville (SFO-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Louisville

Fri, Aug 28 - Mon, Aug 31
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$214Breeze Airways
Fri, Aug 21 - Fri, Aug 28
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$217Breeze Airways
Fri, Aug 21 - Fri, Aug 28
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$218Breeze Airways
Fri, Aug 21 - Mon, Aug 24
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$227Breeze Airways
Fri, Aug 21 - Mon, Aug 24
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$228Breeze Airways
Fri, Aug 14 - Mon, Aug 17
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$232Breeze Airways
Fri, Aug 21 - Fri, Aug 28
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
8:28 pm - 11:37 am
SDF
-
SFO
18h 09m
2 stops
$254Breeze Airways
Thu, Aug 6 - Thu, Aug 13
United Airlines Logo
10:38 pm - 9:26 am
SFO
-
SDF
7h 48m
1 stop
United Airlines Logo
7:25 am - 12:14 pm
SDF
-
SFO
7h 49m
1 stop
$261United Airlines
Fri, Aug 21 - Fri, Aug 28
Breeze Airways Logo
12:18 pm - 7:48 pm
SFO
-
SDF
4h 30mnonstop
Breeze Airways Logo
8:28 pm - 11:37 am
SDF
-
SFO
18h 09m
2 stops
$266Breeze Airways
Tue, Aug 4 - Thu, Aug 13
Delta Logo
11:15 pm - 12:21 pm
SFO
-
SDF
10h 06m
1 stop
Delta Logo
4:30 pm - 9:02 pm
SDF
-
SFO
7h 32m
1 stop
$277Delta
Booking Insights

KAYAK's insights & trends for San Francisco to Louisville flights

Get data-powered insights and trends into flights from San Francisco to Louisville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Francisco to Louisville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Louisville departing in August.

What’s the cheapest day of the week to fly from San Francisco to Louisville?

The average price of all round-trip flights from San Francisco to Louisville clicked on KAYAK for each day over the last 12 months.

For San Francisco to Louisville, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Louisville back to San Francisco, the best deals are generally found on Friday, with Sunday being the most expensive.

What is the cheapest month to fly from San Francisco to Louisville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Louisville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Louisville is September, where tickets cost $369 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $777 and $676 respectively.

Can I save money by flying with a layover from San Francisco to Louisville?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $418, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Louisville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Louisville, you should book around 3 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$131
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from San Francisco to Louisville

When to book flights from San Francisco to Louisville

Are your dates flexible? Find out the best times to travel from San Francisco to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Louisville

  • What services does American Airlines offer for passengers with reduced mobility on flights from San Francisco to Louisville?

    American Airlines offers several services for passengers with reduced mobility on flights from San Francisco to Louisville, including requesting wheelchair service, assistance with mobility devices, and a meet and assist service for passengers with reduced during booking.

  • What seat options are available on Southwest Airlines flights from San Francisco to Louisville?

    Passengers flying with Southwest Airlines flights from San Francisco to Louisville do not have assigned seats but can choose any available seat on board the aircraft in a first-come, first-served basis. In addition, the airline provides Upgraded Boarding as an option for travelers who want to secure better seats, but it depends on availability and does not guarantee a specific seat.

  • What services does Delta Air Lines offer for first-class passengers on flights from San Francisco to Louisville?

    Delta Air Lines offers several services for first-class passengers on flights from San Francisco to Louisville, including spacious and comfortable seating, personal on-board service, access to Delta Sky Priority services reserved for Delta One, Delta Premium Select, and First-Class passengers, access to Delta SkyClub lounges, and a premium in-flight dining experience.

  • Which airline offers flights from San Francisco to Louisville with lower carbon emissions?

    Frontier offers flights from San Francisco to Louisville in conjunction with Spirit Airlines, and they have both taken steps to reduce their carbon emissions. Frontier Airlines is seeking to reduce its carbon footprint through using greener technologies and promoting fuel efficiency while Spirit Airlines encourages passengers to offset their carbon emissions and pursue sustainability efforts.

  • How many flights are there between San Francisco and Louisville per day?

    There is a maximum of 1 nonstop flight a day that takes off from San Francisco and lands in Louisville, with an average flight time of 4h 30m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 2 flights.

  • What is the cheapest flight from San Francisco to Louisville?

    In the last 5 days, the lowest price for a flight from San Francisco to Louisville was $131 for a one-way ticket and $214 for a round-trip.

  • Do I need a passport to fly between San Francisco and Louisville?

    No

  • Which airports will I be using when flying from San Francisco to Louisville?

    San Francisco and Louisville are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at Louisville Intl.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Louisville?

    Only Alaska Airlines offers inflight Wi-Fi service on the San Francisco to Louisville flight route.

  • Which aircraft models fly most regularly from San Francisco to Louisville?

    The Airbus A220-300 is the aircraft model that flies most regularly on the San Francisco to Louisville flight route.

  • Which airline alliances offer flights from San Francisco to Louisville?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Louisville, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to Louisville?

    You can catch a nonstop flight from San Francisco to Louisville on on Monday, and Friday.

  • Which is the best airline for flights from San Francisco to Louisville, Breeze Airways or Southwest?

    The two airlines most popular with KAYAK users for flights from San Francisco to Louisville are Breeze Airways and Southwest. With an average price for the route of $308 and an overall rating of 8.2, Breeze Airways is the most popular choice. Southwest is also a great choice for the route, with an average price of $456 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Francisco to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Louisville

  • Looking for a cheap flight? 25% of our users found flights on this route for $199 or less one-way and $308 or less round-trip.
  • United Airlines offers several services for families with kids on flights from San Francisco (SFO) to Louisville (SDF), including ticket and seat provision, the Unaccompanied Minors Service for children aged 5-14 who are traveling alone, and family seating policies that make it easier for children under 12 years old to sit together with their families.
  • San Francisco Airport (SFO) serves as a base for various airlines, including Alaska and United Airlines. United Airlines operates from both the International Terminal and Terminal 3 at San Francisco Airport while Alaska Airlines operates from Terminal 2.
  • Southwest Airlines is a great option for pet owners who want to fly from San Francisco (SFO) to Louisville (SDF) with their furry friends, as it provides a convenient and affordable service. The airline only allows passengers to bring one pet carrier each, and it must comply with the size requirements of 18.5” x 8.5” x 13.5”.
  • All checked bags on Frontier Airlines flights from San Francisco to Louisville must adhere to a maximum weight of 40 lbs. and maximum linear dimensions of 62 inches. The airline charges fees for both carry-on and checked baggage, and the fees vary depending on the time of purchase, method of purchase, and the weight of the bags.
  • Connecting flights from San Francisco to Louisville have layovers in various cities, but the duration varies depending on the airline and route taken. Some of these layovers include Atlanta (ATL), Minneapolis (MSP), Dallas (DFW), Orlando (MCO), and Las Vegas (LAS).

Prefer to fly direct from San Francisco to Louisville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Louisville Intl.
Find which airlines fly direct from San Francisco Airport to Louisville Intl Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Louisville Intl

Monday

Breeze Airways

Breeze Airways

Friday

Breeze Airways

Breeze Airways

See more direct flights

Direct returns

Louisville Intl to San Francisco

Monday

Breeze Airways

Breeze Airways

Friday

Breeze Airways

Breeze Airways

See more direct flights

Reviews of the top 5 airlines serving from San Francisco to Louisville

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Breeze AirwaysOverall score based on 296 reviews
6.7Entertainment
8.8Crew
6.7Food
8.4Boarding
8.2Comfort
Airline reviews

Flight was great except for lunatic lady and her mother sitting middle/window who went nuts when the woman on the aisle wouldn’t stand up right away to let them out even though the aisle was full. Police had to be called. Some people just shouldn’t be allowed to fly.

10.0 ExcellentPaul, Jun 2026
CHS - HPN
Read more Breeze Airways reviews

Flight was great except for lunatic lady and her mother sitting middle/window who went nuts when the woman on the aisle wouldn’t stand up right away to let them out even though the aisle was full. Police had to be called. Some people just shouldn’t be allowed to fly.

Flight attendants were wonderful. Seats were comfortable “Nicest” bundle). No screens or meal, but it is a budget airline.

it is an economy airline so lack of perks expected .. however an efficient board, clean plane, pleasant crew and an early arrival for half the price of full service airline

Very quick and easy process from check in to deboarding and baggage claim. Crew was professional and friendly. Flight was smooth and on time. Very convenient for short flights.

It was easy and very comfortable! The crew was accommodating and cheerful. I enjoyed myself!

Great experience and In love flying in and out of Provo airport

It was pretty good. Only thing that makes our boarding uncomfortable was, that we had to pass TSA at terminal 1 and after that walk 15 minutes to terminal B, because bus was insufficient to take so many people and waiting time for the bus was more then 1 hour.

Breeze was good but the sandiego airport had traffic and waiting 1 hour in the plane till take off

This was my first time flying your airline and it was okay. The people were nice but I am not used to all the add ons and no movies or even water. But I knew it was going to be that way. I think I prefer paying for the extras to be more comfortable.

Check in was a breeze. Crew was amazing! The two seater had more leg room than the three seater. No snacks available, only for purchase. No internet available, only for higher paying ticket. booking through a third party was misleading - purchased with carry-on, but it did not really come with carry-on.

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

3 hour delay. Had to change plans and was still delayed.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

The seats were a bit cramped and worn, but otherwise okay.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.

Since the flight wasn’t full, we had some extra room. Crew was great

The flight was delayed for almost an hour. We sat on the tarmac. There was no announcement. Not by the pilot or the crew. And for some reason, there was no beverage service, so even though it was a short flight, we had sat on the tarmac and the extra hour delay made me understandably thirsty. Water would’ve been nice if they had offered it. And for the first time, I forgot to bring my own water bottle. Reminder to bring your own water bottle because you never know if you’re going to get a beverage.

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

New boarding doesn't make sense. Filling front first is slow.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

Short flight, but no drink/snack service. The flights both going and coming were delayed.

The plane was spartan, the seats not that comfortable. It was like flying a super low budget airline. They charged for coffee!!! I have never, ever experienced that before.

I had no problems but the changing of planes that I was supposed to be on was confusing. Maybe it would be helpful to let people know your flight changed. Not everyone understands airports or how flying works.

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

I was not clear if food was offered or not.

The gate got changed several times and the flight was delayed over an hour. Awful experience

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

No Snacks or Entertainment. The flight was short, snacks should still be given.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

Boston ticket agent Cheryl Porter is WONDERFUL. Our Iberia flight to Barcelona was cancelled the morning we were scheduled to leave and Cheryl was our super hero - she found us seats on a flight to London and on to Barcelona. Truly a “can-do” attitude which we appreciated so much after the Iberia ticket agents told us there was “absolutely nothing they could do”. (As did the customer service agents at Iberia’s call center) Ms Porter is truly a wonderful person who genuinely cares about travelers!

Nothing wrong on this flight but nothing special. It was oversold and they had to bump people which is always bad.

Everything you need to know for your flight from San Francisco to Louisville

Information on your arrival and departure airports