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Cheap flights from London Heathrow Airport to Louisville from £409

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
18 Jul — 25 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 18 June 2026.

Wed 11/1111:45
LHR
-
SDF
1 stop15h 01m
British Airways
Mon 16/1117:00
SDF
-
LHR
1 stop11h 15m
British Airways
Deal found 16/6£648
Wed 16/908:30
LHR
-
SDF
2 stops19h 38m
Lufthansa
Wed 23/913:07
SDF
-
LHR
1 stop11h 48m
Lufthansa
Deal found 16/6£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£651
Wed 30/906:50
LHR
-
SDF
2 stops15h 50m
United Airlines
Sun 4/1010:25
SDF
-
LHR
1 stop17h 35m
United Airlines
Deal found 16/6£651
Mon 6/708:30
LHR
-
SDF
2 stops15h 48m
Lufthansa
Mon 13/714:10
SDF
-
LHR
1 stop13h 20m
Lufthansa
Deal found 13/6£660
Wed 24/614:45
LHR
-
SDF
1 stop12h 34m
British Airways
Tue 8/918:30
SDF
-
LHR
1 stop11h 45m
British Airways
Deal found 17/6£660
Wed 1/708:30
LHR
-
SDF
2 stops19h 20m
Lufthansa
Thu 9/713:37
SDF
-
LHR
1 stop11h 18m
Lufthansa
Deal found 16/6£662
Wed 24/606:50
LHR
-
SDF
2 stops17h 10m
United Airlines
Tue 8/915:35
SDF
-
LHR
1 stop15h 00m
United Airlines
Deal found 17/6£666

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 18 June 2026.

Round-trip from

£648

One-way from

£409

Popular in

March

Cheapest in

September

Average price

£849
British Airways
  • British Airways
  • 11/11-16/11
  • 2 total stops
  • 26h 16m total
  • London to Louisville
Search Deals
24/8
  • 24/8
  • 3 total stops
  • 30h 29m total
  • London to Louisville
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 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 18 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

Wed 30/9

06:50-17:40

2 stops15h 50m

Louisville Intl

Sun 4/10

10:25-09:00

1 stop17h 35m

£650

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

£651

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

£651

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 13/7

09:30-23:59

2 stops19h 29m

Louisville Intl

Mon 14/9

06:15-09:20

1 stop22h 05m

£664

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 19/9

07:25-19:07

2 stops16h 42m

Louisville Intl

Wed 30/9

09:04-08:30

1 stop18h 26m

£668

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/9

14:05-12:22

2 stops27h 17m

Louisville Intl

Thu 17/9

07:10-06:35

2 stops18h 25m

£671
Fastest return journey

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 1/11

06:50-16:49

2 stops14h 59m

Louisville Intl

Mon 7/12

14:20-09:10

2 stops13h 50m

£671
Cheapest one-way

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 24/8

19:50-21:19

3 stops30h 29m

£409

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/9

07:25-23:08

2 stops20h 43m

£484

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 24/8

12:00-21:31

1 stop14h 31m

£485

Flights are sorted by cheapest return flights first.

Deals found on 15/6

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

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 £507). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of £1,005). 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 18 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
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
690 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
9,853 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
11,679 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
8,069 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
8,054 reviews
Virgin Atlantic
7.5
Good
690 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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 50m. 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 £463. Additional return tickets that might be worth considering are offered by KLM and Virgin Atlantic, with the lowest prices starting at £470 and £477, 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 £507). Flying from London Heathrow Airport to Louisville in March is currently the most expensive (average of £1,005). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 18 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£463Average£577FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£470Average£933FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£477Average£721FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£482Average£678FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£501Average£723FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£596Average£867FlexibilityNo 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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