SFO - SDF

$99 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 9/5. 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, Sep 5 - Mon, Sep 8
Breeze Airways Logo
12:47 pm - 8:12 pmSFO-SDF
4h 25mnonstop
Breeze Airways Logo
9:43 am - 12:02 pmSDF-SFO
5h 19mnonstop
$193Breeze Airways
Find Deal
Fri, Sep 5 - Fri, Sep 12
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
Thu, Sep 11 - Tue, Sep 16
 Logo
10:37 pm - 3:20 pmSFO-SDF
13h 43m1 stop
 Logo
8:23 am - 9:21 pmSDF-SFO
39h 58m2 stops
Thu, Sep 11 - Sun, Sep 14
 Logo
10:37 pm - 3:20 pmSFO-SDF
13h 43m1 stop
 Logo
6:34 pm - 10:43 amSDF-SFO
19h 09m1 stop
Sat, Oct 4 - Sat, Oct 11
American Airlines Logo
11:25 pm - 9:24 amSFO-SDF
6h 59m1 stop
American Airlines Logo
3:46 pm - 10:56 pmSDF-SFO
10h 10m1 stop
$257American Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Delta Logo
12:45 am - 11:49 amSFO-SDF
8h 04m1 stop
Delta Logo
7:00 am - 1:30 pmSDF-SFO
9h 30m1 stop
$277Delta
Find Deal
Thu, Sep 11 - Sat, Sep 27
American Airlines Logo
1:16 pm - 11:59 pmSFO-SDF
7h 43m1 stop
American Airlines Logo
12:25 pm - 7:16 pmSDF-SFO
9h 51m1 stop
$287American Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
Southwest Logo
5:55 am - 6:25 pmSFO-SDF
9h 30m2 stops
Southwest Logo
1:15 pm - 6:25 pmSDF-SFO
8h 10m1 stop
$292Southwest
Find Deal
Thu, Sep 4 - Tue, Sep 9
Delta Logo
1:41 pm - 11:56 pmSFO-SDF
7h 15m1 stop
Delta Logo
12:38 pm - 5:48 pmSDF-SFO
8h 10m1 stop
$297Delta
Find Deal
Tue, Sep 9 - Tue, Sep 16
Southwest Logo
8:35 am - 10:40 pmSFO-SDF
11h 05m2 stops
Southwest Logo
3:20 pm - 9:40 pmSDF-SFO
9h 20m2 stops
$324Southwest
Find Deal
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?

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 October, where tickets cost $328 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $505 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 $382, 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 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$99
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 5% 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 $99 for a one-way ticket and $193 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 $295 and an overall rating of 8.0, Breeze Airways is the most popular choice. Delta is also a great choice for the route, with an average price of $459 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 $125 or less one-way and $255 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.
8.0
SouthwestOverall score based on 4244 reviews
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

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.

10.0 ExcellentJoseph, Aug 2025SFO - BWI
Read more Southwest reviews

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.

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.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

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.

Head rest did not move, very uncomfortable. Staff was great. There was no entertainment, would be nice not to have to pay for snack.

Worst airline - on our flight down from MCO to EYW, there was a huuuuuge delay. We were supposed to take off 12p and it was pushed back to almost 2:30p. We boarded the plane and then sat on the tarmac forever because we were "over" weight and had to burn fuel. Rather than ask guests to volunteer and leave, they kept us on the plane. Finally a family decided to off board and take their luggage with them. Shortly after, we left the terminal but then the pilot told us we may have to sit at the end of the runway for 15-20mins to burn more fuel. Which we ended up doing and of course it started to rain. We finally took off 2:50p. We were supposed to land 1p and didn't land until 3:45p. Basically had time to scramble off the plane, grab our luggage, request transportation to our hotel, unpack, rinse off and hustle over to our 6:30p dinner ressy. It's a shame Breeze is the only non-stop airline from MCO to EYW. For this, not sure I'd ever go back to EYW - most def will not take Breeze again.

Flight was rescheduled from (originally) early Saturday departure to a late Sunday departure. Then the late Sunday departure was delayed again (weather) and got in very late. We’ve enjoyed Breeze a lot, but this particular experience was a little disappointing.

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.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

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.

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Was not able to watch most shows on the entertainment site. They would not load

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

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.

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