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$553+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
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 June 10, 2026.

This TravelUp deal was found by Cheapflights users on 6/6. 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.
Tue 12/811:45 am
LHR
-
SDF
1 stop15h 03m
British Airways
Tue 1/197:20 pm
SDF
-
LHR
1 stop11h 20m
British Airways
Deal found 6/6$863
This United Airlines deal was found by Cheapflights users on 6/6. 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 9/258:40 am
LHR
-
SDF
2 stops16h 51m
United Airlines
Mon 9/282:12 pm
SDF
-
LHR
2 stops15h 13m
United Airlines
Deal found 6/6$864
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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.
Wed 9/167:30 am
LHR
-
SDF
2 stops17h 38m
Lufthansa
Wed 9/231:13 pm
SDF
-
LHR
1 stop16h 12m
Lufthansa
Deal found 6/9$865
This ChecknFly deal was found by Cheapflights users on 6/9. 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.
Thu 10/18:00 am
LHR
-
SDF
1 stop14h 40m
Lufthansa
Sun 10/186:15 am
SDF
-
LHR
1 stop10h 05m
Lufthansa
Deal found 6/9$867
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 11/149:30 am
LHR
-
SDF
2 stops15h 04m
United Airlines
Wed 11/182:20 pm
SDF
-
LHR
1 stop15h 30m
United Airlines
Deal found 6/9$868
This ChecknFly deal was found by Cheapflights users on 6/10. 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.
Sun 11/84:20 pm
LHR
-
SDF
1 stop27h 27m
Lufthansa
Sun 11/151:55 pm
SDF
-
LHR
1 stop11h 00m
Lufthansa
Deal found 6/10$869

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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$864
(United Airlines)

One-way from

$553
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$1,122
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
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 10, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 9/25

8:40 am-8:31 pm

2 stops16h 51m

Louisville Intl

Mon 9/28

2:12 pm-10:25 am

2 stops15h 13m

$864

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 9/16

6:50 am-8:32 pm

2 stops18h 42m

Louisville Intl

Sun 9/20

3:35 pm-7:45 am

1 stop35h 10m

$867

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 11/14

9:30 am-7:34 pm

2 stops15h 04m

Louisville Intl

Wed 11/18

2:20 pm-10:50 am

1 stop15h 30m

$868

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/1

9:30 am-7:24 pm

2 stops14h 54m

Louisville Intl

Sun 10/18

5:15 am-6:35 am

2 stops20h 20m

$880

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 9/1

8:45 am-8:36 pm

2 stops16h 51m

Louisville Intl

Sat 10/31

11:00 am-6:30 am

2 stops15h 30m

$881
Quickest round-trip

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 9/1

12:15 pm-9:25 pm

1 stop14h 10m

Louisville Intl

Thu 9/17

1:43 pm-6:55 am

1 stop12h 12m

$897
Cheapest one-way

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 8/31

8:25 pm-7:07 pm

2 stops27h 42m

$603
Quickest one-way

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 9/15

2:45 pm-10:33 pm

1 stop12h 48m

$619

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 9/10

7:30 am-11:08 pm

2 stops20h 38m

$649

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 10/9

6:50 am-5:40 pm

2 stops15h 50m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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 June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
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?

The best time to book flights from London Heathrow Airport to Louisville is 75 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 $685). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of $1,346). 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 14h 54m. Fly via United Airlines or Lufthansa 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 $685). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of $1,346). 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
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown

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