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Cheap flights from London Heathrow Airport to Louisville from £412

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
14 Jul — 21 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Louisville

Enter your travel dates to find the best prices.

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 14 June 2026.

Wed 16/907:30
LHR
-
SDF
2 stops17h 38m
Lufthansa
Wed 23/913:13
SDF
-
LHR
1 stop16h 12m
Lufthansa
Deal found 10/6£645
Sat 14/1109:30
LHR
-
SDF
2 stops15h 04m
United Airlines
Wed 18/1114:20
SDF
-
LHR
1 stop15h 30m
United Airlines
Deal found 9/6£647
Thu 1/1008:00
LHR
-
SDF
1 stop17h 31m
Lufthansa
Sun 18/1018:16
SDF
-
LHR
1 stop12h 39m
Lufthansa
Deal found 10/6£648
Thu 24/907:30
LHR
-
SDF
2 stops16h 41m
United Airlines
Mon 28/909:04
SDF
-
LHR
1 stop18h 26m
United Airlines
Deal found 13/6£649
Tue 1/908:45
LHR
-
SDF
2 stops16h 51m
United Airlines
Sat 31/1019:32
SDF
-
LHR
1 stop30h 23m
United Airlines
Deal found 10/6£657

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 14 June 2026.

Round-trip from

£645

One-way from

£412

Popular in

March

Cheapest in

September

Average price

£842
Lufthansa
  • Lufthansa
  • 16/9-23/9
  • 3 total stops
  • 33h 50m total
  • London to Louisville
Search Deals
21/8
  • 21/8
  • 3 total stops
  • 19h 39m total
  • London to Louisville
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 14 June 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 return flight

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 14/11

09:30-19:34

2 stops15h 04m

Louisville Intl

Wed 18/11

14:20-10:50

1 stop15h 30m

£648

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 24/9

07:30-19:11

2 stops16h 41m

Louisville Intl

Mon 28/9

09:04-08:30

1 stop18h 26m

£649

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/9

08:45-20:36

2 stops16h 51m

Louisville Intl

Sat 31/10

11:00-06:30

2 stops15h 30m

£657

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 16/9

08:00-17:39

1 stop14h 39m

Louisville Intl

Wed 23/9

13:07-10:25

1 stop16h 18m

£667
Fastest return journey

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/9

12:15-21:25

1 stop14h 10m

Louisville Intl

Thu 17/9

13:43-06:55

1 stop12h 12m

£669

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 16/9

07:45-19:07

2 stops16h 22m

Louisville Intl

Sun 20/9

13:56-06:55

1 stop11h 59m

£669
Cheapest one-way

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 7/12

09:00-20:14

2 stops16h 14m

£446

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 25/6

20:50-21:15

3 stops29h 25m

£448

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 31/8

20:25-19:07

2 stops27h 42m

£450
Fastest single journey

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 15/9

14:45-22:33

1 stop12h 48m

£462

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
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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 return 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?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Louisville, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £511). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of £1,004). 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 for a return flight from London Heathrow Airport to Louisville?

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated 14 June 2026.
Read reviews from past customers who have flown with Virgin Atlantic,United Airlines, andAmerican Airlines from London Heathrow Airport to Louisville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
689 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
9,819 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
American Airlines
7.1
Good
11,651 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Lufthansa
6.8
Okay
8,057 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,047 reviews
Virgin Atlantic
7.5
Good
689 reviews
Check prices

Boarding

7.7

Food

6.9

Crew

8.1

Entertainment

7.5

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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?

    Most people fly into Louisville Intl (SDF) if they book a flight to Louisville from London Heathrow. On average, Louisville Intl has 0 inbound flights from London Heathrow per day from 6 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

    Airlines like United Airlines fly from London Heathrow Airport to Louisville in about 15h 04m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4033 mi.

  • What are the cheapest airlines flying from London Heathrow Airport to Louisville round-trip?

    Flying on Lufthansa is currently your cheapest option to Louisville, with prices starting at £462. Additional return tickets that might be worth considering are offered by KLM and Virgin Atlantic, with the lowest prices starting at £469 and £476, respectively. Users have found that Lufthansa is 35% cheaper than the other options available to this destination.

  • 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 holiday 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 £511). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of £1,004). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Heathrow to Louisville

Discover the top 6 airlines that operate flights from Heathrow to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£462Average£576FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£469Average£932FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£476Average£720FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£481Average£676FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£501Average£722FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£595Average£865FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Louisville?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Louisville. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Louisville?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Louisville for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Louisville with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Louisville with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Louisville become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Louisville from Heathrow today and book when prices fit your budget.

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