$555 Find Cheap Flights from Louisville to Denmark

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Denmark departing on 1/31. 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

Sat, Jan 31 - Sat, Feb 7
British Airways Logo
12:56 pm - 11:25 pm
SDF
-
CPH
28h 29m2 stops
British Airways Logo
2:50 pm - 6:39 pm
CPH
-
SDF
33h 49m2 stops
$540British Airways
Fri, Jan 23 - Tue, Jan 27
United Airlines Logo
9:50 am - 11:25 am
SDF
-
CPH
19h 35m2 stops
United Airlines Logo
10:10 am - 7:43 pm
CPH
-
SDF
15h 33m2 stops
$555United Airlines
Sat, Jan 31 - Sat, Feb 7
Scandinavian Airlines Logo
3:32 pm - 10:40 am
SDF
-
CPH
13h 08m1 stop
Scandinavian Airlines Logo
1:15 pm - 11:50 pm
CPH
-
SDF
16h 35m1 stop
$666Scandinavian Airlines
Sun, Jan 18 - Thu, Jan 22
United Airlines Logo
2:10 pm - 12:25 pm
SDF
-
CPH
16h 15m2 stops
United Airlines Logo
7:05 am - 10:30 pm
CPH
-
SDF
21h 25m2 stops
$694United Airlines
Sun, May 24 - Mon, Jun 8
British Airways Logo
7:16 pm - 5:30 pm
SDF
-
CPH
16h 14m2 stops
British Airways Logo
9:45 pm - 10:59 pm
CPH
-
SDF
31h 14m2 stops
$756British Airways
Mon, Jun 1 - Fri, Jun 19
American Airlines Logo
3:55 pm - 11:15 am
SDF
-
CPH
13h 20m1 stop
American Airlines Logo
8:50 am - 7:44 pm
CPH
-
SDF
16h 54m2 stops
$792American Airlines
Mon, Jun 1 - Fri, Jun 19
American Airlines Logo
7:16 pm - 4:15 pm
SDF
-
CPH
14h 59m2 stops
American Airlines Logo
8:50 am - 7:44 pm
CPH
-
SDF
16h 54m2 stops
$800American Airlines
Sun, May 24 - Mon, Jun 8
American Airlines Logo
7:48 am - 11:15 am
SDF
-
CPH
21h 27m1 stop
American Airlines Logo
8:50 am - 7:44 pm
CPH
-
SDF
16h 54m2 stops
$801American Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
9:00 am - 10:50 am
SDF
-
CPH
19h 50m2 stops
Multiple Airlines Logo
6:40 am - 8:21 pm
CPH
-
SDF
19h 41m3 stops
$844Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Air Canada Logo
1:58 pm - 2:00 pm
SDF
-
CPH
18h 02m3 stops
Air Canada Logo
6:40 am - 8:21 pm
CPH
-
SDF
19h 41m3 stops
$854Air Canada
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.

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

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

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

Good to know

Low seasonDecember
Cheapest flight$540
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 35% 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.

  • What is the cheapest time of day to fly to Denmark?

    The cheapest time of day to fly to Denmark is generally at night, when round-trip flights cost $850 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to Denmark is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,180.

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 8011 reviews
7.9Entertainment
7.9Comfort
8.1Boarding
8.5Crew
7.3Food
Airline reviews

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

4.0 OkayEmily, Dec 2025
LAX - ATL
Read more Delta reviews

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Our flight was held more than 1.5 hours due to baggage issues and overbooking. Our bag was never tagged and caused an unnecessary amount of stress. Personnel on the Delta side were mediocre at best and seemed to not care about customers and seemed like they hated their work.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

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,

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Over all experience was good. However the connection time was too short at CPG. We missed our connecting flight to AMS as the passport control line was too long and by the time we got our passport control done it was too late I wish there were some SAS staff to help us out at the passport control center Though they put us in a KLM flight from CPG to AMS, That flight was also delayed by over two hours

I paid for my seat 💺 assignments for all for legs of my trip, SFO thru Copenhagen to Prague and back the same way. It cost 💲216.00 USD for all four seats. Despite this, on my return 2 flights, my prepaid seats were given away. When I spoke with the information services professional, she said she could not help me, nor provide an alternative seat equivalent or better than what I had. When I spoke with another representative, she was very rude, disrespectful, and did not help.

first of all, the grand person that I tried to upgrade to Business told me there were no seats available. I don't think she really knew how to use the system at all. They were lying to me then I went and sat at my assigned seat and I asked them again if they had seats in business class one of the hostesses proceeded to tell me now the flight is full. The flight was pretty full, but after we took off, there were at least 10 seats in business that they were not occupied so they lied to me basically and I'm really upset about that.

The flight was cancelled without explanation, and the replacement flight was late

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

1) SAS sent me emails that i could check in but that was just a waste of time because traveling to the us i actually had to check-in at the airport. 2) SAS evidently does not care about vegetarians as it does not offer regular veggie alternatives in the transcontinental flights.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Flight was late and boarding was confusing because gate changed and I didn’t get a notification

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

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

Information on your arrival and departure airports