SFO - SDF

$139 Find Cheap Flights from San Francisco to Louisville

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 5/22. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Louisville, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from San Francisco to Louisville

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Louisville.
Discover the best prices for you by selecting your travel dates on KAYAK.
Breeze Airways Logo
12:29 pm - 7:55 pmSFO-SDF
4h 26mnonstop
Breeze Airways Logo
9:37 am - 11:44 amSDF-SFO
5h 07mnonstop
$174Breeze Airways
Find Deal
Fri, Aug 29 - Mon, Sep 1
Breeze Airways Logo
12:29 pm - 7:55 pmSFO-SDF
4h 26mnonstop
Breeze Airways Logo
9:37 am - 11:44 amSDF-SFO
5h 07mnonstop
$259Breeze Airways
Find Deal
Fri, Aug 8 - Mon, Aug 18
Delta Logo
6:05 am - 3:59 pmSFO-SDF
6h 54m1 stop
Delta Logo
7:06 am - 11:45 amSDF-SFO
7h 39m1 stop
$285Delta
Find Deal
Wed, Jun 11 - Tue, Jun 17
Delta Logo
12:40 am - 11:54 amSFO-SDF
8h 14m1 stop
Delta Logo
4:00 pm - 8:31 pmSDF-SFO
7h 31m1 stop
$293Delta
Find Deal
Tue, Aug 26 - Sat, Aug 30
American Airlines Logo
11:55 pm - 9:34 amSFO-SDF
6h 39m1 stop
American Airlines Logo
8:40 pm - 12:08 amSDF-SFO
6h 28m1 stop
$316American Airlines
Find Deal
Wed, Jun 25 - Wed, Jul 9
Southwest Logo
5:15 am - 6:25 pmSFO-SDF
10h 10m2 stops
Southwest Logo
6:00 pm - 9:35 pmSDF-SFO
6h 35m1 stop
$330Southwest
Find Deal
Wed, Aug 27 - Sat, Aug 30
Southwest Logo
5:25 am - 7:05 pmSFO-SDF
10h 40m2 stops
Southwest Logo
6:05 pm - 11:25 pmSDF-SFO
8h 20m1 stop
$335Southwest
Find Deal
Wed, Jun 25 - Wed, Jul 9
American Airlines Logo
1:14 pm - 11:59 pmSFO-SDF
7h 45m1 stop
American Airlines Logo
8:30 pm - 12:12 amSDF-SFO
6h 42m1 stop
$360American Airlines
Find Deal
Mon, Jun 9 - Mon, Jun 30
United Airlines Logo
11:15 pm - 9:33 amSFO-SDF
7h 18m1 stop
United Airlines Logo
7:19 am - 12:16 pmSDF-SFO
7h 57m1 stop
$404United Airlines
Find Deal
Thu, Jun 12 - Wed, Jun 18
United Airlines Logo
12:43 am - 1:30 pmSFO-SDF
9h 47m1 stop
United Airlines Logo
7:00 am - 1:35 pmSDF-SFO
9h 35m1 stop
$415United Airlines
Find Deal
Wed, Aug 27 - Sun, Aug 31
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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.

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 Tuesday is the most expensive. Flying from Louisville back to San Francisco, the best deals are generally found on Friday, with Wednesday 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 $318 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $495 and $471 respectively.

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. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$139
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 2% increase in price.
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.

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

    In the last 3 days, the lowest price for a flight from San Francisco to Louisville was $139 for a one-way ticket and $174 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.

  • 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 Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to Louisville are Breeze Airways and Delta. With an average price for the route of $293 and an overall rating of 8.1, Breeze Airways is the most popular choice. Delta is also a great choice for the route, with an average price of $433 and an overall rating of 8.0.

  • 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 $134 or less one-way and $213 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?

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
See more direct flights

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.
8.1
Breeze AirwaysOverall score based on 160 reviews
6.6Entertainment
6.7Food
8.8Crew
8.2Comfort
8.3Boarding
Airline reviews

Plane did no snacks and had no wifi or entertainment although the flight was 4 hours long.

8.0 ExcellentAnonymous, Apr 2025PVU - IAD
Read more Breeze Airways reviews

Plane did no snacks and had no wifi or entertainment although the flight was 4 hours long.

My original booking was a nonstop flight. It got changed to a flight with a 6vhour layover that became a 7+ hour lay over. I'll never fly this airline again after this roundtrip is over.

I was surprised at how wonderful it was. The aircraft was clean. The crew was warm and welcoming and as a result the passengers were friendly. One warning the only free thing was water. I kind of liked picking wet hat I was willing to pay for and what I was willing to skip.

The flight wasn’t big on frills, which is fine with me. I flew into Islip MacArthur Airport, which saved me from having to go through LaGuardia to visit friends on Long Island. It was inexpensive and super convenient!

Great experience! This was my first time flying with them and I could not have been happier.

Airplane was newer and very clean, lots of space. Crew was great. There was no food and entertainment but that was expected so not an issue.

I like that the price is right! The airplane is clean and the staff is friendly. We landed safely, so that is always a gold star in my book! Great job!

Purposely delayed the flight by 2 hours and 58 minutes so that they would not have to give me the FAA mandated refund for a delay of 3 hours. Offered flight credit instead. All that is offered on board is water and coffee, everything else costs money. They charge you for carry on and checked bags. Would not fly again.

nice flight. no frills but a 3 hour flight I caught up on my sleep. Stan O

First time flying Breeze, was very impressed. I will use Breeze again.

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

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

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 recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Delta flight was on time, seats were comfortable, and crew was nice.

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

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

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

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

British Airways staff are very polite and willing to help.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

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.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

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

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