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Cheap flights from London Heathrow Airport to Louisville from £360

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
2 May — 9 May1
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 2 April 2026.

Wed 16/915:00
LHR
-
SDF
1 stop11h 39m
British Airways
Mon 21/915:54
SDF
-
LHR
1 stop12h 31m
British Airways
Deal found 28/3£667
Mon 27/407:30
LHR
-
SDF
2 stops17h 12m
Lufthansa
Mon 4/514:30
SDF
-
LHR
1 stop11h 25m
Lufthansa
Deal found 30/3£667
Fri 29/519:30
LHR
-
SDF
2 stops33h 29m
Scandinavian Airlines
Fri 12/616:40
SDF
-
LHR
2 stops18h 20m
Scandinavian Airlines
Deal found 31/3£677
Wed 29/408:40
LHR
-
SDF
2 stops29h 46m
United Airlines
Wed 6/506:17
SDF
-
LHR
1 stop10h 08m
United Airlines
Deal found 1/4£679
Mon 27/408:40
LHR
-
SDF
2 stops16h 36m
United Airlines
Mon 4/514:55
SDF
-
LHR
2 stops14h 45m
United Airlines
Deal found 30/3£682
Wed 16/908:40
LHR
-
SDF
2 stops29h 35m
United Airlines
Mon 21/910:05
SDF
-
LHR
1 stop15h 50m
United Airlines
Deal found 28/3£684
Wed 29/415:20
LHR
-
SDF
1 stop12h 52m
Lufthansa
Wed 6/516:17
SDF
-
LHR
1 stop11h 03m
Lufthansa
Deal found 1/4£688
Fri 25/906:40
LHR
-
SDF
2 stops22h 19m
Scandinavian Airlines
Fri 9/1012:53
SDF
-
LHR
2 stops19h 42m
Scandinavian Airlines
Deal found 31/3£694

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 2 April 2026.

Round-trip from

£667

One-way from

£360

Popular in

July

Cheapest in

September

Average price

£625
British Airways
  • British Airways
  • 16/9-21/9
  • 2 total stops
  • 24h 10m total
  • London to Louisville
Search Deals
15/4
  • 15/4
  • 3 total stops
  • 50h 04m total
  • London to Louisville
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 2 April 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 29/4

08:40-09:26

2 stops29h 46m

Louisville Intl

Wed 6/5

06:17-21:25

1 stop10h 08m

£679

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 27/4

08:40-20:16

2 stops16h 36m

Louisville Intl

Mon 4/5

14:55-10:40

2 stops14h 45m

£682

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 13/5

10:50-23:56

2 stops18h 06m

Louisville Intl

Wed 20/5

09:55-09:35

2 stops18h 40m

£688
Fastest return journey

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 12/5

06:50-17:00

2 stops15h 10m

Louisville Intl

Tue 19/5

06:17-21:25

1 stop10h 08m

£688

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 30/4

09:30-14:47

2 stops34h 17m

Louisville Intl

Thu 7/5

09:55-06:55

1 stop16h 00m

£716

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 20/5

09:30-22:22

2 stops17h 52m

Louisville Intl

Tue 26/5

13:05-10:40

2 stops16h 35m

£722

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 1/5

10:50-17:00

2 stops35h 10m

Louisville Intl

Fri 8/5

16:17-05:55

1 stop32h 38m

£768

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 8/6

09:20-00:32

1 stop20h 12m

Louisville Intl

Thu 25/6

13:02-07:40

2 stops13h 38m

£858
Cheapest one-way

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 15/4

20:00-17:04

3 stops50h 04m

£360

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 20/5

20:50-20:20

3 stops52h 30m

£471

Flights are sorted by cheapest return flights first.

Deals found on 30/3

Showing 1-10 of 19 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

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 £371). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £527). 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 2 April 2026.
Read reviews from past customers who have flown with Finnair,Virgin Atlantic, andUnited 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.
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,376 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Virgin Atlantic
7.5
Good
685 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
United Airlines
7.4
Good
9,533 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Lufthansa
6.8
Okay
7,882 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,843 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Entertainment

6.9

Crew

8.2

Food

6.7

Overall

7.7

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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 29h 46m. 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 KLM is currently your cheapest option to Louisville, with prices starting at £474. Additional return tickets that might be worth considering are offered by United Airlines and Lufthansa, with the lowest prices starting at £485 and £488, respectively. Users have found that KLM is 26% 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 £371). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £527). 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£474Average£768FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£485Average£649FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£488Average£568FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£499Average£633FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£515Average£602FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£515Average£677FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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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