$45 Find Cheap Flights from Louisville to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to the United States departing on 2/24. 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 the United States

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

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

Free to useThere are no hidden charges or fees.

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

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
Newark1 stop$171
Orlando
Orlandononstop$123
Los Angeles
Los Angelesnonstop$187
Las Vegas
Las Vegas3 stops$305
Chicago
Chicago1 stop$174
Miami
Miami2 stops$233
San Francisco
San Francisco2 stops$310
Boston
Boston1 stop$166
Washington, D.C.
Washington, D.C.nonstop$189
Denver
Denver1 stop$197
Fort Lauderdale
Fort Lauderdalenonstop$95
Seattle
Seattle1 stop$307
Atlanta
Atlanta1 stop$145
Dallas
Dallas1 stop$140
Tampa
Tampa1 stop$123
Houston
Houston1 stop$193
Honolulu
Honolulu1 stop$464
San Diego
San Diego1 stop$337
Philadelphia
Philadelphia1 stop$173
New York
Newark1 stop$171
Orlando
Orlandononstop$123
Los Angeles
Los Angelesnonstop$187
Las Vegas
Las Vegas3 stops$305
Chicago
Chicago1 stop$174
Miami
Miami2 stops$233
San Francisco
San Francisco2 stops$310
Boston
Boston1 stop$166
Washington, D.C.
Washington, D.C.nonstop$189
Denver
Denver1 stop$197
Fort Lauderdale
Fort Lauderdalenonstop$95
Seattle
Seattle1 stop$307
Atlanta
Atlanta1 stop$145
Dallas
Dallas1 stop$140
Tampa
Tampa1 stop$123
Houston
Houston1 stop$193
Honolulu
Honolulu1 stop$464
San Diego
San Diego1 stop$337
Philadelphia
Philadelphia1 stop$173

Book Cheap Louisville to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to the United States 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 Louisville to the United States

월, 2월 23 - 금, 2월 27
Allegiant Air Logo
9:30 am - 11:55 am
SDF
-
FLL
2h 25mnonstop
Allegiant Air Logo
6:00 am - 8:40 am
FLL
-
SDF
2h 40mnonstop
$95Allegiant Air
일, 3월 1 - 토, 3월 7
Spirit Airlines Logo
3:33 pm - 6:07 pm
SDF
-
FLL
2h 34mnonstop
Spirit Airlines Logo
8:30 am - 11:05 am
FLL
-
SDF
2h 35mnonstop
$100Spirit Airlines
일, 6월 28 - 목, 7월 9
Breeze Airways Logo
8:49 pm - 10:58 pm
SDF
-
TPA
2h 09mnonstop
Breeze Airways Logo
5:55 pm - 8:09 pm
TPA
-
SDF
2h 14mnonstop
$157Breeze Airways
목, 7월 2 - 목, 7월 9
Breeze Airways Logo
8:49 pm - 10:58 pm
SDF
-
TPA
2h 09mnonstop
Breeze Airways Logo
5:55 pm - 8:09 pm
TPA
-
SDF
2h 14mnonstop
$176Breeze Airways
수, 3월 18 - 일, 3월 22
Delta Logo
8:05 am - 2:51 pm
SDF
-
EWR
6h 46m
1 stop
Delta Logo
6:00 am - 10:10 am
EWR
-
SDF
4h 10m
1 stop
$197Delta
목, 3월 26 - 토, 3월 28
Delta Logo
5:35 pm - 10:42 pm
SDF
-
HOU
6h 07m
1 stop
Delta Logo
6:00 am - 1:07 pm
HOU
-
SDF
6h 07m
1 stop
$197Delta
월, 3월 2 - 금, 3월 6
American Airlines Logo
6:12 pm - 10:37 pm
SDF
-
DEN
6h 25m
1 stop
American Airlines Logo
11:59 pm - 9:02 am
DEN
-
SDF
7h 03m
1 stop
$201American Airlines
수, 2월 18 - 수, 2월 25
American Airlines Logo
6:12 pm - 10:37 pm
SDF
-
DEN
6h 25m
1 stop
American Airlines Logo
2:28 pm - 9:26 pm
DEN
-
SDF
4h 58m
1 stop
$205American Airlines
일, 2월 22 - 수, 2월 25
Southwest Logo
6:30 am - 4:30 pm
SDF
-
MIA
10h 00m
1 stop
Southwest Logo
12:55 pm - 10:10 pm
MIA
-
SDF
9h 15m
2 stops
$242Southwest
화, 4월 28 - 수, 5월 6
Southwest Logo
12:10 pm - 1:45 pm
SDF
-
HOU
2h 35mnonstop
Southwest Logo
2:50 pm - 6:00 pm
HOU
-
SDF
2h 10mnonstop
$309Southwest
Booking Insights

KAYAK's insights & trends for Louisville to the United States flights

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

What is the cheapest Louisville to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Louisville found in the last 72 hours was to Orlando, at $101 round-trip. The most popular route is from Louisville (SDF) to Atlanta (ATL), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $260.

Can I save money by flying with a layover from Louisville to the United States?

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 $353, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Louisville to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to the United States, 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 Louisville to the United States is July, when tickets cost $240 (return) on average. On the other hand, the most expensive months are December and September, when the average cost of round-trip tickets is $394 and $328 respectively.

Good to know

Low seasonNovember
Cheapest flight$45
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Louisville to Fort Lauderdale

Flights from Louisville to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Louisville to the United States 
Mike & DebbieFlew with Southwest
SDF
-
DAL
Dec 2025
Give yourself plenty of time with TSA in Louisville. Only 3 agents checking ids at their busiest times.
Verified travelerFlew with American Airlines
SDF
-
CLT
Mar 2025
More time should be given between connecting flights. Large distance to travel from Concourse C to Concourse B.
Mike & DebbieFlew with Southwest
SDF
-
HOU
Mar 2025
TSA screening backs up over lunch time. A smaller area for Screening slows things down.
RoyceFlew with Spirit Airlines
SDF
-
FLL
Jan 2025
Don't get there earlier than two hours, otherwise you'll be waiting to check your bags in Louisville. It's just a tiny airport.
TinaFlew with Delta
SDF
-
ATL
Oct 2024
Arrive early so you don’t feel rushed. Mind your assigned zones. I know people want to get onboard as soon as possible because of overhead compartments, but plan ahead in case you need to gate check your bag. And pack your patience. I know that sounds cliched but it’ll help.
Verified travelerFlew with Alaska Airlines
SDF
-
ORD
Apr 2024
If flight gets delayed. Be sure to ask the airlines you traveled with, to rebook the next available flight immediately.

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Louisville to the United States?

    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 Louisville to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Louisville to the United States 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 Louisville to the United States?

    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 from Louisville to the United States with an airline and back with another airline.

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

    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 from Louisville to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $196 on average. Morning departures are around 17% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $562.

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Louisville to the following destinations at these prices or less: Atlanta $216 one-way - $382 round-trip; Charlotte $175 one-way - $342 round-trip; Chicago $215 one-way - $426 round-trip

Reviews of the top 5 airlines serving from Louisville to the United States

 
Need help choosing which airline to fly with from Louisville to the United States? 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 4280 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

10.0 ExcellentCarol, Feb 2026
DEN - MSP
Read more Southwest reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

The screens were inoperable for movies and such, but everything else was just fine

Cancelled my flight, said next flight was 30hrs later. Had to come out of pocket $500 to get on a SW flight

All of our flights were canceled, though every other airline was flying out and in

We were on the tarmac waiting for a gate at Logan for 40, minutes. The crew handled it well. Can't blame the airline.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

Everything was good. On time, boarding fast, flight attendants friendly.

Great, but seats are terrible. Way too cramped for any human.

Spirit has always and will always stink. Absolute worst airline around.

It was smooth sailing snags we had a really smooth landing and a great flight!

The entire experience was so surprisingly pleasant. And the blocked extra seat between us was such an amazing and nice bonus. Great experience all around and I can’t wait to fly with spirit again!

Everything was OK, the deicing took a long time, our connections were almost missed.

Everything you need to know for your flight from Louisville to the United States

Information on your arrival and departure airports