$633 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 9/6. 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

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Cheap Flights from Louisville to Denmark

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Copenhagen
Copenhagen2 stops$633
Copenhagen
Copenhagen2 stops$633

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, Sep 6 - Fri, Sep 19
United Airlines Logo
7:36 pm - 7:10 amSDF-CPH
29h 34m2 stops
United Airlines Logo
12:25 pm - 6:58 pmCPH-SDF
36h 33m2 stops
$633United Airlines
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Sun, Sep 7 - Fri, Sep 19
Delta Logo
6:00 am - 6:30 amSDF-CPH
18h 30m1 stop
Delta Logo
12:30 pm - 10:58 pmCPH-SDF
16h 28m1 stop
$700Delta
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Sun, Sep 7 - Fri, Sep 19
Delta Logo
6:00 am - 6:30 amSDF-CPH
18h 30m1 stop
Delta Logo
9:00 am - 9:13 pmCPH-SDF
18h 13m2 stops
$705Delta
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Sat, Sep 6 - Fri, Sep 19
 Logo
7:20 am - 7:10 amSDF-CPH
17h 50m3 stops
 Logo
1:00 pm - 10:24 pmCPH-SDF
15h 24m2 stops
Wed, Nov 12 - Sun, Nov 16
Lufthansa Logo
2:35 pm - 1:35 pmSDF-CPH
17h 00m2 stops
Lufthansa Logo
6:55 am - 11:40 pmCPH-SDF
22h 45m2 stops
$724Lufthansa
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Thu, Oct 2 - Thu, Oct 9
United Airlines Logo
7:20 pm - 10:50 amSDF-CPH
33h 30m2 stops
United Airlines Logo
6:50 am - 8:48 pmCPH-SDF
19h 58m2 stops
$776United Airlines
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Fri, Sep 5 - Fri, Sep 19
KLM Logo
4:20 pm - 11:45 amSDF-CPH
13h 25m2 stops
KLM Logo
9:00 am - 6:28 pmCPH-SDF
15h 28m2 stops
$799KLM
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Thu, Sep 4 - Sat, Sep 20
Scandinavian Airlines Logo
3:11 pm - 10:50 amSDF-CPH
13h 39m1 stop
Scandinavian Airlines Logo
1:25 pm - 11:52 pmCPH-SDF
16h 27m1 stop
$819Scandinavian Airlines
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Thu, Oct 2 - Thu, Oct 9
Scandinavian Airlines Logo
12:48 pm - 10:50 amSDF-CPH
16h 02m1 stop
Scandinavian Airlines Logo
1:25 pm - 10:34 pmCPH-SDF
15h 09m1 stop
$825Scandinavian Airlines
Find Deal
Sat, Sep 6 - Fri, Sep 19
KLM Logo
12:40 pm - 9:55 amSDF-CPH
15h 15m1 stop
KLM Logo
12:30 pm - 7:04 pmCPH-SDF
12h 34m1 stop
$1,041KLM
Find Deal
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 seasonNovember
Cheapest flight$633
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly and prices are also 0% 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 7982 reviews
7.9Comfort
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

6.0 GoodKristopher, Aug 2025HPN - ATL
Read more Delta reviews

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

No choice of food. Needed to pay more even for a can of coke!!!

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I love it the scandavians know hospitality travel and are very friendly peopu

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Pretty good. The food was just mediocre, the boarding and crew were good.

The comfort of the seats was great, the crew eased my child’s anxieties and the fact that I had full cans of my beverage choice was great.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

4 hours late, including over +1 hour waiting in plane to take off. Baggage left behind too.

Sat on the ground in Cincinnati for 50 minutes before deplaning

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