$41 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 6/2. 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

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 22% 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.

Flights Deals
Useful Info
Flights Deals

Best United States Flight Deals from Louisville

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
Newarknonstop$88
Los Angeles
Los Angelesnonstop$99
Orlando
Orlandononstop$78
Las Vegas
Las Vegas1 stop$108
Miami
Miami1 stop$150
Chicago
Chicago1 stop$161
San Francisco
San Franciscononstop$159
Boston
Boston1 stop$186
Washington, D.C.
Washington, D.C.nonstop$179
Denver
Denver1 stop$275
Seattle
Seattle2 stops$256
Fort Lauderdale
Fort Lauderdalenonstop$76
Atlanta
Atlantanonstop$61
Dallas
Dallas1 stop$109
Tampa
Tampanonstop$61
Houston
Houston1 stop$131
Honolulu
Honolulu1 stop$517
San Diego
San Diego2 stops$240
Philadelphia
Philadelphia1 stop$198
New York
Newarknonstop$88
Los Angeles
Los Angelesnonstop$99
Orlando
Orlandononstop$78
Las Vegas
Las Vegas1 stop$108
Miami
Miami1 stop$150
Chicago
Chicago1 stop$161
San Francisco
San Franciscononstop$159
Boston
Boston1 stop$186
Washington, D.C.
Washington, D.C.nonstop$179
Denver
Denver1 stop$275
Seattle
Seattle2 stops$256
Fort Lauderdale
Fort Lauderdalenonstop$76
Atlanta
Atlantanonstop$61
Dallas
Dallas1 stop$109
Tampa
Tampanonstop$61
Houston
Houston1 stop$131
Honolulu
Honolulu1 stop$517
San Diego
San Diego2 stops$240
Philadelphia
Philadelphia1 stop$198

Cheap Flight Deals from Louisville to the United States (SDF-US0)

 
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.

Recent round-trip flight deals from Louisville to the United States

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Louisville to the United States.
Discover the best prices for you by selecting your travel dates on KAYAK.
Spirit Airlines Logo
9:55 am - 12:12 pmSDF-EWR
2h 17mnonstop
Spirit Airlines Logo
6:48 am - 9:00 amEWR-SDF
2h 12mnonstop
$88Spirit Airlines
Find Deal
Mon, Jun 2 - Fri, Jun 6
Spirit Airlines Logo
9:55 am - 12:12 pmSDF-EWR
2h 17mnonstop
Spirit Airlines Logo
6:48 am - 9:00 amEWR-SDF
2h 12mnonstop
$89Spirit Airlines
Find Deal
Mon, Jun 2 - Fri, Jun 6
American Airlines Logo
6:21 am - 8:59 amSDF-MIA
2h 38mnonstop
American Airlines Logo
9:20 pm - 11:57 pmMIA-SDF
2h 37mnonstop
$197American Airlines
Find Deal
Tue, Jun 17 - Tue, Jun 24
Delta Logo
6:05 am - 8:23 amSDF-LGA
2h 18mnonstop
Delta Logo
6:30 pm - 9:00 pmLGA-SDF
2h 30mnonstop
$197Delta
Find Deal
Tue, Oct 21 - Tue, Oct 28
Delta Logo
6:26 pm - 11:42 pmSDF-MIA
5h 16m1 stop
Delta Logo
6:00 am - 11:34 amMIA-SDF
5h 34m1 stop
$199Delta
Find Deal
Sat, Aug 30 - Sat, Sep 6
United Airlines Logo
6:30 am - 8:40 amSDF-EWR
2h 10mnonstop
United Airlines Logo
6:00 am - 10:16 amEWR-SDF
4h 16m1 stop
$207United Airlines
Find Deal
Sat, Jun 21 - Tue, Jun 24
American Airlines Logo
12:43 pm - 2:49 pmSDF-LGA
2h 06mnonstop
American Airlines Logo
5:08 pm - 7:23 pmLGA-SDF
2h 15mnonstop
$212American Airlines
Find Deal
Fri, May 30 - Fri, Jun 6
United Airlines Logo
11:10 am - 1:22 pmSDF-EWR
2h 12mnonstop
United Airlines Logo
6:30 pm - 8:59 pmEWR-SDF
2h 29mnonstop
$214United Airlines
Find Deal
Thu, Jul 17 - Mon, Jul 21
Southwest Logo
2:15 pm - 3:40 pmSDF-HOU
2h 25mnonstop
Southwest Logo
6:30 am - 1:20 pmHOU-SDF
5h 50m1 stop
$241Southwest
Find Deal
Tue, Jul 15 - Tue, Jul 22
Southwest Logo
3:55 pm - 11:10 pmSDF-LGA
7h 15m1 stop
Southwest Logo
6:00 am - 3:15 pmLGA-SDF
9h 15m1 stop
$243Southwest
Find Deal
Mon, Jun 30 - Tue, Aug 5
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Louisville to the United States.

The cheapest ticket to the United States from Louisville found in the last 72 hours was to Los Angeles, at $92 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 $209.

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 $474, 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 August, when tickets cost $223 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $353 and $284 respectively.

What’s the cheapest day of the week to fly from Louisville to United States?

The average price of all round-trip flights from Louisville to the United States clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to United States on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Louisville to United States. For your return ticket, we recommend flying on a Wednesday and avoiding Thursdays for the best deals.


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$41
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Louisville to Newark Liberty Airport

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 
Verified travelerFlew with American AirlinesSDF-CLTMar 2025
More time should be given between connecting flights. Large distance to travel from Concourse C to Concourse B.
Mike & DebbieFlew with SouthwestSDF-HOUMar 2025
TSA screening backs up over lunch time. A smaller area for Screening slows things down.
RoyceFlew with Spirit AirlinesSDF-FLLJan 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 DeltaSDF-ATLOct 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 AirlinesSDF-ORDApr 2024
If flight gets delayed. Be sure to ask the airlines you traveled with, to rebook the next available flight immediately.
DaveFlew with DeltaSDF-MSPApr 2024
There is no lounge in Louisville. Two mediocre restaurants, Chili’s and Coal

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 in the morning, when round-trip flights cost $305 on average. Morning departures are around 20% 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 $411.

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 $186 one-way - $313 round-trip; Charlotte $170 one-way - $321 round-trip; Chicago $256 one-way - $489 round-trip

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 4294 reviews
8.2Boarding
7.1Food
8.6Crew
7.6Entertainment
8.0Comfort
Airline reviews

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

10.0 ExcellentKurt V, May 2025AUS - ABQ
Read more Southwest reviews

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

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

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

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

Food from the flight from Atlanta to Santiago was very poor..

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

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

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

In flight connectivity (via T-Mobile) was often not working.

Pitch was very small. Knees were on the seat back in front of me.

Several delays. Next flight was worse. Did not arrive home until 2am PT

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

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Spirit is by far the worst airline to travel with, period. Seats are cardboard, flight attendants need anger management and if you ask for water, you’re basically a criminal. I don’t care how much it costs but I will travel with an airline who actually cares about their customers. Oh and one more thing, the next time your gate agent puts his foot on someone’s baggage's scale, I hope they get what’s coming next, a viral video of your scams. You suck Spirit, do better.

I mean, it’s Spirit. But it was frustrating to have our flight canceled, get bumped to a later flight, and then Spirit was unwilling to check our bag until 4 hours before our flight… tell us we could not sit in the waiting area’s chairs… and really negative experience getting checked in and dropping the bag.

Not having it be changed after we bought the flight tickets from a direct flight getting in at a reasonable time to a connecting flight red eye of 9 hours, so that we would lose our 35 dollars in nonrefundable insurance would've been great! Our country really does need low-cost carrier options, but this type of "service" ain't it. Fortunately, had a little better success with them flying to and from San Juan PR last month at least.

All was good expecting the seats need a bit of cushion. Besides that I can’t complain.

You get what you pay for, and the flights went smoothly. There’s no reclining chairs, no screens, And there isn’t always wifi, but the plane was clean and staff was friendly and the takeoff/landing were smooth.

The only positive is that the flight made it both ways. Getting charged for every little thing after the cost of the ticket itself is comical, considering how the plane and services are as bottom-tier as possible. The self check-in kiosks are useless. It’s nice to think that you can print your boarding pass, tag your checked bag, and then just drop it off. But no, they still make you go through the line once you finish- what’s the point of the self check-in then? Any questions for the staff seem like the biggest inconvenience and were met with condescending responses. This was my first and now last time ever flying with Spirit. After all the extra costs, subpar plane and staff, I see no value. I’d rather drive the 13 hours than give Spirit another dime.

The flight was fine however what started as a reasonable priced ticket could have become an overpriced ticket with additional charge for carry on as well as checked bag $79 per bag per person each way. Additional charge for choosing one’s seat, additional charge for beverage and snack, we were on what was described as a new plane yet there were no audio/visual on the jet. A bare bones service but not at a bare bones price. Will think twice before flying Spirit again. 😕

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

I love Spirit. New aircraft, great cabin service, the airfares are low cost which helps me visit my hospitalized daughter anytime I can without paying a fortune.

Flight was 2hours late they had no crew or the pilot.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.