$683 Find Cheap Flights from Louisville to Denmark

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 Denmark departing on 3/28. 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

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Book Cheap Louisville to Denmark 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 Denmark 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 Denmark

Fri, Apr 3 - Sun, Apr 12
Multiple Airlines Logo
10:49 am - 6:40 pm
SDF
-
CPH
25h 51m
2 stops
Multiple Airlines Logo
7:30 pm - 11:11 pm
CPH
-
SDF
33h 41m
2 stops
$667Multiple Airlines
Sun, Mar 1 - Wed, Mar 11
Lufthansa Logo
5:54 pm - 5:35 pm
SDF
-
CPH
17h 41m
2 stops
Lufthansa Logo
6:50 am - 8:14 pm
CPH
-
SDF
18h 24m
2 stops
$683Lufthansa
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
5:35 am - 11:05 pm
SDF
-
CPH
35h 30m
2 stops
United Airlines Logo
6:50 am - 8:09 pm
CPH
-
SDF
19h 19m
2 stops
$725United Airlines
Sun, May 24 - Mon, Jun 8
Finnair Logo
7:20 pm - 4:15 pm
SDF
-
CPH
14h 55m
2 stops
Finnair Logo
7:25 pm - 11:25 pm
CPH
-
SDF
34h 00m
2 stops
$745Finnair
Fri, Mar 20 - Fri, Mar 27
United Airlines Logo
2:35 pm - 12:25 pm
SDF
-
CPH
16h 50m
2 stops
United Airlines Logo
6:55 am - 10:13 pm
CPH
-
SDF
20h 18m
2 stops
$753United Airlines
Sun, May 24 - Mon, Jun 8
Finnair Logo
7:20 pm - 4:15 pm
SDF
-
CPH
14h 55m
2 stops
Finnair Logo
7:25 pm - 11:25 pm
CPH
-
SDF
34h 00m
2 stops
$775Finnair
Sun, May 24 - Mon, Jun 8
American Airlines Logo
6:25 pm - 11:35 am
SDF
-
CPH
11h 10m
1 stop
American Airlines Logo
3:20 pm - 11:47 am
CPH
-
SDF
26h 27m
1 stop
$792American Airlines
Sun, May 24 - Mon, Jun 8
American Airlines Logo
6:25 pm - 11:35 am
SDF
-
CPH
11h 10m
1 stop
American Airlines Logo
12:25 pm - 10:16 pm
CPH
-
SDF
15h 51m
2 stops
$794American Airlines
Sun, May 24 - Mon, Jun 8
American Airlines Logo
7:20 pm - 4:15 pm
SDF
-
CPH
14h 55m
2 stops
American Airlines Logo
3:20 pm - 11:47 am
CPH
-
SDF
26h 27m
1 stop
$800American Airlines
Sat, May 23 - Wed, Jun 3
American Airlines Logo
7:20 pm - 4:15 pm
SDF
-
CPH
14h 55m
2 stops
American Airlines Logo
3:20 pm - 11:47 am
CPH
-
SDF
26h 27m
1 stop
$810American Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Denmark flights

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

Which airlines provide the cheapest flights from Louisville to Denmark?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Louisville to Denmark were found on United Airlines ($725) and Finnair ($775).

Good to know

Low seasonFebruary
Cheapest flight$432
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Louisville to Copenhagen

FAQs - booking Denmark flights

  • How does KAYAK find such low prices on flights from Louisville to Denmark?

    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 Denmark.

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

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

    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 Denmark 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 Denmark?

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

Reviews of the top 4 airlines serving from Louisville to Denmark

 
Need help choosing which airline to fly with from Louisville to Denmark? 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.
7.9
DeltaOverall score based on 8172 reviews
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
8.1Boarding
Airline reviews

The flight was great as well as the airline staff

10.0 ExcellentPatty, Feb 2026
TPA - ATL
Read more Delta reviews

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

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.

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

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

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Same thing as flight from Pheonix to Newark. Uograded and Promised extra leg room and when I got to the seat it had none.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Everything except the food and entertainment. It was a great experience though

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.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was unable to rebook a flight booked through cheap flights. Could not rebook, despite premium eco.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

The crew was friendly, the flight was pleasant. Thank you for your service!

Our originating flight into Copenhagen was an hour delayed, causing us to miss our main flight from Copenhagen to the US. There had been snow and we needed to be de-iced, but they seemed very slow getting the flight ready, with no explanation. The delay caused us to be put in with thousands stuck at the airport with an all day wait to get rebooked on a flight 2 days out.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

One of our bags was never put on the flight in Copenhagen. Now that we're home in the USA, my wife is still without most of her clothes and personal items as she returns to work this week. Hoping for a quick resolution, but there seems to be little chance of speaking with an actual person in the process.

really nothing ...uncomfortable seating, cramped ....no better than a US short hopper flight.. never again

Amazing! Everyone was so nice and the food was so good!!

Cut out the nickel and dime pricing for "seat selection" and baggage, To do this on an international flight is just mind boggling. Seriously, why treat customers this way??? Nobody wants these hidden extra fees and everybody hates them. Also plane was too warm and no air vent, and water dripped from the ceiling at one point,

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

Flight was on time and the meal and service were good.

The accessible bathroom should be visible to people in Economy class.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

This was a horrible experience. I’ve experienced several delays at this point and still not home. I was supposed to be home by 8:30 last night and here I sit at 7 am on a plane STILL unable to go home because of American Airlines.

Lexus in first class was absolutely amazing! Beat flight attendant i’ve ever seen.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

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.

Everything you need to know for your flight from Louisville to Denmark

Information on your arrival and departure airports