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$636+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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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 janeiro 28, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 3/1011:15 am
LHR
-
SDF
1 stop16h 44m
American Airlines
qua 3/2512:07 pm
SDF
-
LHR
2 stops13h 43m
American Airlines
Deal found 1/26$683
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 4/2010:50 am
LHR
-
SDF
2 stops16h 40m
Lufthansa
seg 4/271:55 pm
SDF
-
LHR
1 stop11h 50m
Lufthansa
Deal found 1/26$690
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 4/197:25 am
LHR
-
SDF
2 stops20h 05m
Lufthansa
dom 4/265:43 pm
SDF
-
LHR
1 stop13h 02m
Lufthansa
Deal found 1/26$695
This United Airlines deal was found by Cheapflights users on 1/26. 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.
qua 2/411:05 am
LHR
-
SDF
2 stops16h 25m
United Airlines
dom 2/89:50 am
SDF
-
LHR
1 stop15h 50m
United Airlines
Deal found 1/26$697
This TravelUp deal was found by Cheapflights users on 1/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 3/112:10 pm
LHR
-
SDF
1 stop13h 10m
British Airways
qua 3/253:33 pm
SDF
-
LHR
1 stop13h 42m
British Airways
Deal found 1/26$703
This American Airlines deal was found by Cheapflights users on 1/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 3/1210:35 am
LHR
-
SDF
2 stops16h 05m
American Airlines
qua 3/2512:07 pm
SDF
-
LHR
2 stops13h 43m
American Airlines
Deal found 1/26$724

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 janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$683
(American Airlines)

One-way from

$636
(Gurufare)

Popular in

July

Cheapest in

January

Average price

$589
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. 8% potential increase in price ($77 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 janeiro 28, 2026.
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

ter 3/10

11:15 am-11:59 pm

1 stop16h 44m

Louisville Intl

qua 3/25

12:07 pm-5:50 am

2 stops13h 43m

$683

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

seg 4/20

10:50 am-10:30 pm

2 stops16h 40m

Louisville Intl

seg 4/27

1:55 pm-6:45 am

1 stop11h 50m

$690

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

qui 3/12

9:00 am-10:13 pm

2 stops17h 13m

Louisville Intl

qui 3/19

6:00 am-8:35 pm

1 stop10h 35m

$690

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

dom 4/19

7:25 am-10:30 pm

2 stops20h 05m

Louisville Intl

dom 4/26

5:43 pm-11:45 am

1 stop13h 02m

$695

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

sex 3/13

8:00 am-7:31 pm

1 stop15h 31m

Louisville Intl

sex 3/20

1:47 pm-9:10 am

1 stop15h 23m

$702

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

qui 3/12

10:35 am-10:40 pm

2 stops16h 05m

Louisville Intl

qua 3/25

12:07 pm-5:50 am

2 stops13h 43m

$724

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

seg 2/16

9:50 am-11:16 pm

2 stops18h 26m

$636

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

seg 2/16

9:55 am-12:21 pm

3 stops55h 26m

$646

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

seg 2/16

3:50 pm-11:58 pm

1 stop13h 08m

$660

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

qui 7/23

7:05 am-6:46 pm

3 stops40h 41m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 12 results
1
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Louisville flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

The best time to book flights from London Heathrow Airport to Louisville is 8 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.

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 40m. Fly via American Airlines, 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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