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Cheap flights from London Heathrow Airport to Louisville from £497

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
26 Feb — 5 Mar1
1 adult

The best prices from London Heathrow to Louisville Intl are usually found in January or February, booked 55 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 21 February 2025.

Round-trip from

£497

Popular in

August

Cheapest in

January

Average price

£540
KLM
  • KLM
  • 21/4-28/4
  • 2 total stops
  • 23h 38m total
  • London to Louisville
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£88 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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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 21 February 2025.

Mon 21/413:05LHR - SDF
1 stop13h 43mKLM
Mon 28/418:00SDF - LHR
1 stop9h 55mKLM
Deal found 20/2£497
Mon 21/411:45LHR - SDF
2 stops16h 04mVirgin Atlantic
Mon 28/414:46SDF - LHR
1 stop11h 29mVirgin Atlantic
Deal found 20/2£501
Tue 1/410:30LHR - SDF
1 stop14h 14mFinnair
Mon 7/413:44SDF - LHR
1 stop17h 46mFinnair
Deal found 20/2£561
Wed 17/909:20LHR - SDF
1 stop14h 43mDelta
Wed 1/1014:59SDF - LHR
2 stops13h 16mDelta
Deal found 20/2£565
Tue 1/420:00LHR - SDF
2 stops29h 57mMultiple Airlines
Mon 7/417:16SDF - LHR
1 stop12h 14mMultiple Airlines
Deal found 20/2£577
Tue 1/408:30LHR - SDF
2 stops16h 17mUnited Airlines
Mon 7/411:04SDF - LHR
2 stops14h 41mUnited Airlines
Deal found 20/2£643
Thu 29/506:15LHR - SDF
2 stops16h 25mAir France
Sun 1/619:30SDF - LHR
2 stops31h 35mAir France
Deal found 20/2£719
Wed 23/713:10LHR - SDF
1 stop14h 28mBritish Airways
Thu 20/1113:47SDF - LHR
1 stop16h 43mBritish Airways
Deal found 20/2£773
Sun 6/422:00LHR - SDF
2 stops50h 51mAer Lingus
Sun 13/405:45SDF - LHR
2 stops21h 15mAer Lingus
Deal found 20/2£982
Tue 9/916:00LHR - SDF
2 stops22h 42mLufthansa
Tue 16/913:24SDF - LHR
1 stop11h 31mLufthansa
Deal found 20/2£1,031
Wed 17/907:05LHR - SDF
3 stops20h 27mScandinavian Airlines
Wed 1/1014:59SDF - LHR
2 stops22h 31mScandinavian Airlines
Deal found 20/2£1,211

Find flights from Heathrow to Louisville within your budget

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 21 February 2025.

Fly from

Heathrow

Fly to

Louisville

Route

Depart

Return

Price

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 21/4

13:05-21:48

1 stop13h 43m

Louisville Intl

Mon 28/4

18:00-08:55

1 stop9h 55m

£497

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 21/4

11:45-22:49

2 stops16h 04m

Louisville Intl

Mon 28/4

12:55-10:15

2 stops16h 20m

£501

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/4

10:30-19:44

1 stop14h 14m

Louisville Intl

Mon 7/4

13:44-12:30

1 stop17h 46m

£561

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/4

11:45-23:57

2 stops17h 12m

Louisville Intl

Mon 7/4

13:04-07:15

1 stop13h 11m

£568

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/4

20:00-20:57

2 stops29h 57m

Louisville Intl

Mon 7/4

17:16-10:30

1 stop12h 14m

£577

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 1/4

08:30-19:47

2 stops16h 17m

Louisville Intl

Mon 7/4

11:04-06:45

2 stops14h 41m

£643

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 29/5

06:15-17:40

2 stops16h 25m

Louisville Intl

Sun 1/6

19:30-08:05

2 stops31h 35m

£719

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 23/7

13:10-22:38

1 stop14h 28m

Louisville Intl

Thu 20/11

13:47-11:30

1 stop16h 43m

£773

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 6/4

22:00-19:51

2 stops50h 51m

Louisville Intl

Sun 13/4

05:45-08:00

2 stops21h 15m

£982

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 29/5

07:05-23:56

3 stops21h 51m

Louisville Intl

Sun 1/6

14:59-17:40

2 stops21h 41m

£1,889

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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.

Travel insights for flights from Heathrow to Louisville

Get recent, data-driven insights about flights from Heathrow to Louisville including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Louisville?

Use this chart to determine the optimal time to book a return flight from Heathrow to Louisville. Price data was last updated on 14 February 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Louisville, you should look to book at least 55 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, 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 21 February 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.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 79.0 - 135.0 inches per month. May is typically the wettest month, when rainfall can reach 135.0 mm. September is typically the driest time to visit Louisville when rainfall is around 79.0 mm.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 21 February 2025.
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,212 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very Good
8,212 reviews
Check prices

Comfort

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 KLM is currently your cheapest option to Louisville, with prices starting at £497. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Finnair, with the lowest prices starting at £501 and £561, respectively. Users have found that KLM is 22% 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

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

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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£447Average£537FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£449Average£603FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£457Average£609FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£465Average£577FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£468Average£531FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest£470Average£678FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£470Average£618FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£474Average£592FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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