The cheapest times to fly from SDF to CPH are

  • January 8th to April 1st
  • August 20th to December 9th (except the weeks of October 8th and October 15th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SDF to CPH is early September. Prices can be as high as $1452 for Saturday flights during early to mid July, or as low as $896 for Wednesday flights around early September.


When to Fly to Copenhagen

Flying from Louisville, KY (SDF) to Copenhagen (CPH) will usually cost between $1007 to $1382 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $999. Due to high demand the most expensive time to fly is early to mid July, with an average price of $1339. Planning your trip to low-cost times can easily save you $340 on economy flights and even more on first-class flights. Generally, any price below $1122 can be considered a good price for a round-trip SDF to CPH flight.

See below for a graph of average weekly prices for the SDF to CPH route. All prices are for round-trip tickets in USD.

SDF to CPH Flight Prices

Compared to other flights, the SDF to CPH flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Louisville. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to fly to CPH, and Tuesday the cheapest day to fly back into SDF. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $106 (9%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $1101. Return trip prices are from the CPH to SDF flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SDF to CPH can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 53 minutes may not be realistic.


Flight Hacking SDF to CPH

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SDF to CPH — but Champion Traveler does!

Hack #1: New York, NY (SDF > JFK > CPH)

  • Price for both tickets: $714
  • Average savings: $408 (36.36%)

See SDF to JFK flights

Hack #2: Boston, MA (SDF > BOS > CPH)

  • Price for both tickets: $726
  • Average savings: $397 (35.34%)

See SDF to BOS flights

Hack #3: Los Angeles, CA (SDF > LAX > CPH)

  • Price for both tickets: $737
  • Average savings: $386 (34.36%)

See SDF to LAX flights


Flight Questions Answered

Still have questions about flying from SDF to CPH? We’ve got answers.

Which airlines fly this route?

You can find 17 major airlines flying this route most often: Air Canada, Air France, Alitalia, American, Austrian, British Airways, Brussels Airlines, Delta, KLM, LOT, Lufthansa, Royal Jordanian, SAS, SWISS, Tap Air Portugal, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Kastrup Airport to Louisville International-Standiford Field Airport?

The distance between the two airports is roughly 4391 miles or 7067 kilometers.

How long does it take to fly from SDF to CPH?

The real-world flight time for a nonstop SDF to CPH flight is about 8 hour 53 minutes.

How many flights go between Louisville, KY and Copenhagen?

It depends on the day of the week and the date, but a typical day might have around 75 available flights from SDF to CPH.


Airport Location Info


Departing Airport

Origination codeSDF
Origination airport nameLouisville International-Standiford Field Airport
CityLouisville, KY
Countrythe United States

Return Airport

Destination codeCPH
Destination airport nameKastrup Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.