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$496+ Cheap flights from Heathrow (LHR) to Louisville (SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Find cheap flights from Heathrow to Louisville with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from London Heathrow to Louisville Intl are usually found in January or February, booked 55 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to Louisville

Cheapest flights from Heathrow to Louisville
Explore the most affordable flight options available from Heathrow to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This lastminute.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:50 pmLHR - SDF
2 stops37h 13mMultiple Airlines
Thu 1/16:11 pmSDF - LHR
1 stop12h 04mMultiple Airlines
Deal found 12/13$1,460
This Expedia deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:05 amLHR - SDF
1 stop17h 03mVirgin Atlantic
Mon 12/2212:21 pmSDF - LHR
1 stop13h 04mVirgin Atlantic
Deal found 12/12$1,543
This ChecknFly deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:00 amLHR - SDF
2 stops16h 11mLufthansa
Mon 12/223:25 pmSDF - LHR
1 stop35h 05mLufthansa
Deal found 12/12$1,566
This lastminute.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/212:50 pmLHR - SDF
2 stops37h 13mMultiple Airlines
Sun 1/42:00 pmSDF - LHR
1 stop10h 55mMultiple Airlines
Deal found 12/13$1,650
This United Airlines deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:35 amLHR - SDF
2 stops18h 57mUnited Airlines
Mon 12/229:05 amSDF - LHR
2 stops17h 05mUnited Airlines
Deal found 12/12$1,676
This Air Canada deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/211:25 pmLHR - SDF
2 stops36h 07mAir Canada
Sun 1/43:44 pmSDF - LHR
2 stops47h 51mAir Canada
Deal found 12/13$1,781
This Flightnetwork deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:15 pmLHR - SDF
2 stops32h 15mLufthansa
Sun 1/42:00 pmSDF - LHR
1 stop10h 55mLufthansa
Deal found 12/13$1,906
This Mytrip deal was found by Cheapflights users on 12/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:00 pmLHR - SDF
3 stops34h 59mMultiple Airlines
Mon 12/229:23 pmSDF - LHR
3 stops42h 12mMultiple Airlines
Deal found 12/12$2,128

Find flight deals from Heathrow to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$756
(Expedia)

One-way from

$496
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,081
Provider with most accurate pricing for London Heathrow-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Louisville Intl flights.
Search Deals
From London Heathrow to Louisville Intl
Search Deals
One-way flight from London Heathrow to Louisville Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 14, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Louisville that are best for you.

Fly from

Heathrow

Fly to

Louisville

Route

Depart

Return

Price

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 2/11

8:30 am-7:43 pm

2 stops16h 13m

Louisville Intl

Tue 2/24

2:35 pm-6:40 am

1 stop11h 05m

$756

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 2/2

9:00 am-8:28 pm

2 stops16h 28m

Louisville Intl

Mon 2/9

9:50 am-6:40 am

1 stop15h 50m

$776

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 1/26

9:00 am-8:28 pm

2 stops16h 28m

Louisville Intl

Mon 2/2

1:50 pm-6:20 am

1 stop11h 30m

$777

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/27

9:00 am-8:28 pm

2 stops16h 28m

Louisville Intl

Tue 2/3

9:50 am-5:55 am

2 stops15h 05m

$777

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 1/12

7:30 am-7:31 pm

2 stops17h 01m

Louisville Intl

Mon 1/26

2:05 pm-7:55 am

1 stop12h 50m

$782

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 2/2

11:45 am-10:12 pm

1 stop15h 27m

Louisville Intl

Mon 2/9

1:15 pm-9:15 am

1 stop15h 00m

$786

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 2/11

12:35 pm-11:19 pm

1 stop15h 44m

Louisville Intl

Tue 2/24

12:00 pm-6:55 am

1 stop13h 55m

$787

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 1/26

9:00 am-2:41 pm

3 stops34h 41m

Louisville Intl

Mon 2/2

6:54 pm-12:40 pm

3 stops36h 46m

$802

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 2/13

9:30 am-11:59 pm

2 stops19h 29m

Louisville Intl

Tue 2/17

5:54 pm-11:15 am

1 stop12h 21m

$807

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 1/12

2:50 pm-1:00 pm

3 stops51h 10m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 16 results
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Compare providers for flights from Heathrow to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Louisville in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Louisville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-Louisville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Louisville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Louisville

How far ahead should I book a flight from London Heathrow Airport to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Louisville. Price data was last updated on December 12, 2025.

The best time to book flights from London Heathrow Airport to Louisville is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Louisville?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of $494). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of $668). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to SDF?

Find hourly flight availability from Heathrow to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 14, 2025.

When flying from London Heathrow Airport to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 62% versus a flight in the evening.

How much does it cost to fly round-trip from London Heathrow Airport to Louisville?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from London Heathrow?

    For a flight from London Heathrow to Louisville, you will be flying into Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Louisville Intl from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Louisville?

    There are many flights that can get you from London Heathrow Airport to Louisville in 16h 13m. Fly via Lufthansa or United Airlines to get the fastest option. The distance between London Heathrow Airport and Louisville is about 4033 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Heathrow to Louisville that include hotel bookings?

    Yes. In addition to deals on Heathrow to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Louisville.

  • Can I find deals for business class flights from Heathrow to Louisville?

    Yes. Cheapflights offers flight deals from Heathrow to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Louisville?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of $494). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of $668). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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