SFO - SDF

$109 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 9/22. 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.
1 adult
1 adult, Economy

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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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 22 - Fri, Sep 12
Breeze Airways Logo
12:29 pm - 7:55 pmSFO-SDF
4h 26mnonstop
Breeze Airways Logo
9:43 am - 12:02 pmSDF-SFO
5h 19mnonstop
$189Breeze Airways
Find Deal
Fri, Sep 19 - Mon, Sep 22
Breeze Airways Logo
12:47 pm - 8:12 pmSFO-SDF
4h 25mnonstop
Breeze Airways Logo
9:43 am - 12:02 pmSDF-SFO
5h 19mnonstop
$198Breeze Airways
Find Deal
Mon, Aug 11 - Mon, Aug 18
United Airlines Logo
5:00 am - 2:23 pmSFO-SDF
6h 23m1 stop
United Airlines Logo
3:25 pm - 8:23 pmSDF-SFO
7h 58m1 stop
$255United Airlines
Find Deal
Wed, Aug 6 - Mon, Aug 11
Southwest Logo
5:15 am - 6:25 pmSFO-SDF
10h 10m2 stops
Southwest Logo
5:20 pm - 11:20 pmSDF-SFO
9h 00m1 stop
$260Southwest
Find Deal
Mon, Sep 8 - Sat, Sep 13
Southwest Logo
5:15 am - 3:30 pmSFO-SDF
7h 15m1 stop
Southwest Logo
6:00 pm - 9:35 pmSDF-SFO
6h 35m1 stop
$263Southwest
Find Deal
Mon, Aug 18 - Thu, Sep 11
Delta Logo
7:29 am - 6:40 pmSFO-SDF
8h 11m1 stop
Delta Logo
7:44 pm - 11:59 pmSDF-SFO
7h 15m1 stop
$277Delta
Find Deal
Thu, Oct 16 - Mon, Oct 20
United Airlines Logo
11:33 pm - 10:01 amSFO-SDF
7h 28m1 stop
United Airlines Logo
7:20 pm - 11:59 pmSDF-SFO
7h 39m1 stop
$288United Airlines
Find Deal
Mon, Aug 4 - Fri, Aug 15
American Airlines Logo
11:17 pm - 11:25 amSFO-SDF
9h 08m1 stop
American Airlines Logo
6:44 am - 12:30 pmSDF-SFO
8h 46m1 stop
$296American Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
American Airlines Logo
12:45 am - 11:44 amSFO-SDF
7h 59m1 stop
American Airlines Logo
1:03 pm - 7:46 pmSDF-SFO
9h 43m1 stop
$297American Airlines
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Fri, Aug 15 - Tue, Sep 9
Delta Logo
12:40 am - 11:58 amSFO-SDF
8h 18m1 stop
Delta Logo
6:00 am - 5:17 pmSDF-SFO
14h 17m2 stops
$310Delta
Find Deal
Useful Info

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, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Louisville back to San Francisco, the best deals are generally found on Monday, with Thursday 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 August, where tickets cost $308 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $495 and $479 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 $381, 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. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$109
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 2% 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.

  • 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 $109 for a one-way ticket and $189 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 $277 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 $447 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 $120 or less one-way and $252 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.
8.1
Breeze AirwaysOverall score based on 182 reviews
8.2Comfort
6.6Entertainment
8.4Boarding
8.8Crew
6.8Food
Airline reviews

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

10.0 ExcellentAnonymous, Jun 2025SAN - PIT
Read more Breeze Airways reviews

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

The return flight was soooooo much colder than the departure flight to Connecticut! I appreciated the layover because I didn't have to change planes. The staff and the service were the best! Everyone was so professional and accommodating. Having internet was great, but for the movies the flight offers through the app could be updated. THANKS EVERYONE! I fly BREEZE every opportunity I can get.

The flight was comfortable with the usual slight turbulence. Macadamia Nuts would be great snacks to purchase in flight.

This is one of the worst trips that I have ever had. Ending up with an overnight delay. I’m not happy with the fact that they did not provide and set up the arrangement needed for lodging that we had to do it on our own. I also feel there should’ve been Compensation for food.

Had to approach landing twice which caused concern but probably due to weather

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.

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!

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

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.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

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

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

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!!!

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

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.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Eventless. It was a good flight and good crew. Can’t complaint.

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.

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

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