The cheapest times to fly from LHR to SDF are

  • April 23rd to May 6th
  • September 24th to December 9th
  • December 24th to March 25th

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 LHR to SDF is late January and early February. Prices can be as high as $1619 for Saturday flights during early August, or as low as $676 for Monday flights around late January and early February.


When to Fly to Louisville

Flying from London (LHR) to Louisville, KY (SDF) will usually cost between $701 to $1478 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $690. Due to high demand the most expensive time to fly is early August, with an average price of $1489. Planning your trip to low-cost times can easily save you $798 on economy flights and even more on first-class flights. Generally, any price below $871 can be considered a good price for a round-trip LHR to SDF flight.

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

LHR to SDF Flight Prices

Compared to other flights, the LHR to SDF flight is cheaper than the average and costs slightly more than the average flight leaving from London. The average price per mile (for a direct flight) is $0.13, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to SDF, and Tuesday the cheapest day to fly back into LHR. 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 $72 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $905. Return trip prices are from the SDF to LHR 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 LHR to SDF 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 15 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from LHR to SDF while comparing.

Destination alternative #1: Cincinnati/Northern Kentucky International Airport (CVG) in Cincinnati, OH

  • 84 miles (135 km) away from SDF
  • Usually 8.32% less expensive than SDF
  • 1-layover flights available

See LHR to CVG flights

Destination alternative #2: Indianapolis International Airport (IND) in Indianapolis, IN

  • 111 miles (179 km) away from SDF
  • Usually 7.41% less expensive than SDF
  • 1-layover flights available

See LHR to IND flights


Flight Hacking LHR to SDF

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 LHR to SDF — but Champion Traveler does!

Hack #1: New York, NY (LHR > LGA > SDF)

  • Price for both tickets: $601
  • Average savings: $271 (31.06%)

See LHR to BOS flights

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

  • Price for both tickets: $616
  • Average savings: $255 (29.28%)

See LHR to LGA flights

Hack #3: Chicago, IL (LHR > ORD > SDF)

  • Price for both tickets: $635
  • Average savings: $237 (27.15%)

See LHR to ORD flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 21 major airlines flying this route most often: Aer Lingus, Aeromexico, Air Canada, Air France, Alitalia, American, Austrian, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, LOT, Lufthansa, SAS, SWISS, Tap Air Portugal, Turkish Airlines, United, Virgin Atlantic, and potentially more during busy seasons.

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

The distance between the two airports is roughly 4035 miles or 6494 kilometers.

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

The real-world flight time for a nonstop LHR to SDF flight is about 8 hour 15 minutes.

How many flights go between London and Louisville, KY?

It depends on the day of the week and the date, but a typical day might have around 61 available flights from LHR to SDF.


Airport Location Info


Departing Airport

Origination code LHR
Origination airport name London Heathrow Airport
City London
Country the United Kingdom
Latitude 51.5
Longitude -0.5

Return Airport

Destination code SDF
Destination airport name Louisville International-Standiford Field Airport
City Louisville, KY
Country the United States
Latitude 38.2
Longitude -85.7


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.