Cheap flights from London Heathrow Airport to Louisville from £377

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
21 Aug — 28 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Louisville Intl are usually found in January or October, booked 56 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap 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 16 August 2025.

Round-trip from

£483

One-way from

£377

Popular in

August

Cheapest in

January

Average price

£754
United Airlines
  • United Airlines
  • 29/9-6/10
  • 3 total stops
  • 29h 40m total
  • London to Louisville
13/12
  • 13/12
  • 2 total stops
  • 31h 18m total
  • London to Louisville
Highest demand for flights based on searches. 13% potential increase in price (£65 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find 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 16 August 2025.

Mon 29/909:30LHR - SDF
2 stops16h 18mUnited Airlines
Mon 6/1013:58SDF - LHR
1 stop13h 22mUnited Airlines
Deal found 15/8£483
Sat 30/806:30LHR - SDF
2 stops15h 45mUnited Airlines
Sat 27/910:55SDF - LHR
1 stop16h 25mUnited Airlines
Deal found 14/8£484
Sun 28/906:50LHR - SDF
2 stops18h 58mUnited Airlines
Sun 5/1008:45SDF - LHR
2 stops16h 10mUnited Airlines
Deal found 14/8£485
Mon 8/911:45LHR - SDF
1 stop15h 57mVirgin Atlantic
Sun 14/917:53SDF - LHR
1 stop31h 52mVirgin Atlantic
Deal found 14/8£497
Sun 14/914:10LHR - SDF
1 stop13h 14mLufthansa
Sun 21/913:59SDF - LHR
1 stop13h 21mLufthansa
Deal found 15/8£499
Thu 9/1012:15LHR - SDF
1 stop13h 33mMultiple Airlines
Tue 14/1009:55SDF - LHR
1 stop16h 00mMultiple Airlines
Deal found 15/8£500
Sun 28/908:00LHR - SDF
1 stop17h 27mLufthansa
Sun 5/1013:58SDF - LHR
1 stop11h 22mLufthansa
Deal found 14/8£505
Mon 29/913:30LHR - SDF
1 stop13h 00mMultiple Airlines
Mon 6/1015:35SDF - LHR
1 stop10h 05mMultiple Airlines
Deal found 15/8£505
Sat 30/808:30LHR - SDF
1 stop13h 46mLufthansa
Sat 27/913:00SDF - LHR
1 stop13h 15mLufthansa
Deal found 14/8£506
Wed 1/1006:30LHR - SDF
2 stops17h 34mDelta
Wed 8/1016:25SDF - LHR
1 stop13h 05mDelta
Deal found 15/8£510
Wed 1/1009:30LHR - SDF
2 stops14h 03mAir Canada
Wed 8/1008:45SDF - LHR
2 stops16h 45mAir Canada
Deal found 15/8£512
Fri 10/1015:20LHR - SDF
1 stop12h 40mLufthansa
Tue 14/1014:03SDF - LHR
1 stop15h 37mLufthansa
Deal found 14/8£581

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 16 August 2025.
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

Mon 29/9

09:30-20:48

2 stops16h 18m

Louisville Intl

Mon 6/10

10:55-06:55

2 stops15h 00m

£483

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 9/10

08:30-20:48

2 stops17h 18m

Louisville Intl

Tue 14/10

08:30-06:30

2 stops17h 00m

£483

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 30/8

08:30-18:58

2 stops15h 28m

Louisville Intl

Sat 27/9

09:55-06:20

2 stops15h 25m

£484

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 8/9

07:30-21:02

2 stops18h 32m

Louisville Intl

Sun 14/9

13:00-10:40

1 stop16h 40m

£484

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 28/9

06:50-20:48

2 stops18h 58m

Louisville Intl

Sun 5/10

08:45-05:55

2 stops16h 10m

£485

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 13/12

14:50-17:08

2 stops31h 18m

£377

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 31/8

15:05-17:42

2 stops55h 37m

£387

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 30/8

06:00-20:18

2 stops43h 18m

£422

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 26/8

20:40-20:18

3 stops52h 38m

£422

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 29/8

12:00-13:51

3 stops54h 51m

£433

Flights are sorted by cheapest return flights first.

Deals found on 14/8

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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of £662). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £1,019). 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.

What is the cheapest time of day to fly from LHR to SDF?

Find hourly flight availability from Heathrow to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 August 2025.

It’s typically best to fly out from London Heathrow Airport to Louisville in the afternoon. Doing so could potentially save you 4% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from London Heathrow Airport to Louisville?

What’s the top stopover airport for flights from London Heathrow Airport to Louisville?

Share of one-stop return flights from London Heathrow Airport to Louisville chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Chicago (ORD) – chosen by Cheapflights users on 53% of one-stop itineraries from London Heathrow Airport to Louisville on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Louisville?

Average return fare for one-stop flights from London Heathrow Airport to Louisville, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Minneapolis (MSP) is the most affordable one-stop option, with an average return flight price of £506.

What’s the fastest stopover option from London Heathrow Airport to Louisville?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Louisville, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Boston (BOS) have the shortest average one-way travel time for one-stop routes: 12h 07m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Louisville?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Louisville, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Philadelphia (PHL) offer the fastest connection on this route, with an average stopover time of 1h 28m.

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 16 August 2025.
Read reviews from past customers who have flown with KLM, Finnair, andVirgin Atlantic 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.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Entertainment

7.1

Crew

8.4

Food

7.3

Boarding

7.8

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 8 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

    Flying on British Airways is currently your cheapest option to Louisville, with prices starting at £417. Additional return tickets that might be worth considering are offered by Air France and Finnair, with the lowest prices starting at £417 and £424, respectively. Users have found that British Airways is 28% 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Louisville (average of £662). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £1,019). 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 8 airlines flying from Heathrow to Louisville

Discover the top 8 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 16 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£417Average£547FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£417Average£509FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£424Average£552FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£442Average£504FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£456Average£584FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£457Average£552FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£457Average£576FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£492Average£688FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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

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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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