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 9/11. 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

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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Louisville.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$238
Typical prices: $448-$275
Breeze Airways
Fri 8/28Fri 9/4
SFO - SDF • Non-stop
Cheapest one-way
$109
Typical prices: $110-$225
Breeze Airways
Fri 9/11
SFO - SDF • Non-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
+1
+1
Direct flights
Direct flights
+1
Top airlines
Cheapest • from $238 (round-trip)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
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 - Fri, Sep 4
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
$238Breeze Airways
Fri, Aug 28 - Fri, Sep 4
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
$308Breeze Airways
Thu, Aug 27 - Mon, Aug 31
Breeze Airways Logo
12:47 pm - 8:46 am
SFO
-
SDF
16h 59m
2 stops
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$322Breeze Airways
Thu, Aug 20 - Mon, Aug 24
Breeze Airways Logo
12:47 pm - 8:46 am
SFO
-
SDF
16h 59m
2 stops
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$343Breeze Airways
Fri, Aug 7 - Fri, Aug 14
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
$347Breeze Airways
Wed, Aug 19 - Mon, Aug 24
Multiple Airlines Logo
8:51 pm - 4:29 pm
SFO
-
SDF
16h 38m
1 stop
Multiple Airlines Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$350Multiple Airlines
Wed, Aug 19 - Mon, Aug 24
Multiple Airlines Logo
11:52 pm - 9:49 am
SFO
-
SDF
30h 57m
2 stops
Multiple Airlines Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$354Multiple Airlines
Thu, Aug 27 - Mon, Aug 31
Breeze Airways Logo
12:47 pm - 8:48 pm
SFO
-
SDF
29h 01m
3 stops
Breeze Airways Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$372Breeze Airways
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
11:24 am - 2:58 pm
SFO
-
SDF
24h 34m
3 stops
Multiple Airlines Logo
9:31 am - 11:33 am
SDF
-
SFO
5h 02mnonstop
$374Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Delta Logo
12:35 am - 12:00 pm
SFO
-
SDF
8h 25m
1 stop
Delta Logo
4:47 pm - 10:49 pm
SDF
-
SFO
9h 02m
1 stop
$375Delta
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, Thursday is the cheapest day to fly on average and Saturday 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 August, where tickets cost $341 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $666 and $662 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 $432, 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 36% 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$109
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 16% 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 $238 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 $306 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 $159 or less one-way and $298 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 286 reviews
8.2Comfort
8.7Crew
8.3Boarding
6.7Entertainment
6.7Food
Airline reviews

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.

10.0 ExcellentAngelo, May 2026
VRB - IAD
Read more Breeze Airways reviews

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!

I normally have very good experiences with Breeze. The crew is great, pricing is excellent, and the planes are new and usually clean. This time in Huntsville we were delayed, which I understand can happen, however we were moved from one gate to the opposite side of the terminal and then back again... There was a lot of confusion. Also, my seat had a lot of food crumbs still on the floor where I had to stow my bookbag, so that was a bit disappointing. Other than that, all was good. Crew was great as usual!

Our flight was delayed 7 hours. Due to a change in equipment we were downgraded from "Nicest" to "Nicer," even having to pay for a soft drink. Disappointing. To Breeze's credit that issued a $100 flight credit. A refund would have been more appreciated.

Lost my luggage and terrible experience with customer service trying to track it down

10 hour delay with minimal updates. Couldn’t leave terminal and then ended up on redeye with a dirty broken plane. It is literally impossible to reach customer service via gate agent, app, phone, text or email.

I thought that I had pre-purchased carry-on luggage and was surprised when I tried to check in that I did not have it.

Flight departure was 90 min delayed, and the boarding experience was confused, stressful, and generally poor. Additionally, the wifi on the plane was malfunctioning for all but the final 15 min of the flight into ILM.

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

You get what you pay for. It’s like a bus but flying. No frills, no snacks. Leg room was fine, boarding was good.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

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

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

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

Information on your arrival and departure airports