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Cheap flights from London Heathrow Airport to Louisville from £507

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 23/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
30 Mar — 6 Apr1
1 adult

Cheapflights Tip: 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 25 March 2025.

Round-trip from

£567

One-way from

£507

Popular in

August

Cheapest in

January

Average price

£545
British Airways
  • British Airways
  • 24/4-29/4
  • 2 total stops
  • 26h 02m total
  • London to Louisville
Aer Lingus
  • Aer Lingus
  • 23/6
  • 2 total stops
  • 19h 09m total
  • London to Louisville
Highest demand for flights based on searches. 15% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in March 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 25 March 2025.

Thu 1/511:45LHR - SDF
2 stops17h 14mDelta
Tue 6/512:55SDF - LHR
2 stops14h 55mDelta
Deal found 24/3£606
Thu 8/506:30LHR - SDF
2 stops15h 56mUnited Airlines
Thu 15/506:00SDF - LHR
1 stop19h 55mUnited Airlines
Deal found 24/3£611
Thu 10/415:15LHR - SDF
1 stop13h 43mVirgin Atlantic
Thu 15/518:56SDF - LHR
1 stop13h 14mVirgin Atlantic
Deal found 25/3£630
Tue 1/414:25LHR - SDF
1 stop11h 32mBritish Airways
Fri 2/520:37SDF - LHR
1 stop10h 38mBritish Airways
Deal found 24/3£634
Thu 10/413:10LHR - SDF
1 stop12h 17mFinnair
Thu 15/512:43SDF - LHR
2 stops13h 37mFinnair
Deal found 25/3£649
Thu 24/407:40LHR - SDF
3 stops39h 51mMultiple Airlines
Tue 29/405:05SDF - LHR
3 stops34h 15mMultiple Airlines
Deal found 25/3£779
Tue 19/812:15LHR - SDF
1 stop13h 47mLufthansa
Tue 26/814:20SDF - LHR
1 stop15h 20mLufthansa
Deal found 24/3£908
Wed 2/421:05LHR - SDF
3 stops29h 25mScandinavian Airlines
Fri 2/514:37SDF - LHR
2 stops20h 23mScandinavian Airlines
Deal found 24/3£2,513
Sat 17/513:05LHR - SDF
1 stop12h 31mKLM
Fri 23/514:38SDF - LHR
1 stop13h 17mKLM
Deal found 25/3£4,243
Sat 17/509:30LHR - SDF
2 stops17h 15mAir Canada
Sat 24/514:05SDF - LHR
2 stops14h 55mAir Canada
Deal found 25/3£5,003
Sun 18/514:10LHR - SDF
2 stops29h 04mWestJet
Sat 24/519:09SDF - LHR
2 stops35h 56mWestJet
Deal found 25/3£6,016
Mon 19/513:05LHR - SDF
1 stop12h 31mAir France
Sat 24/516:23SDF - LHR
1 stop15h 47mAir France
Deal found 25/3£8,365

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 25 March 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

Thu 10/4

15:15-23:58

1 stop13h 43m

Louisville Intl

Thu 15/5

18:56-13:10

1 stop13h 14m

£630

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/4

13:10-20:27

1 stop12h 17m

Louisville Intl

Thu 15/5

12:43-07:20

2 stops13h 37m

£649

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/4

06:30-18:05

2 stops16h 35m

Louisville Intl

Thu 15/5

12:44-10:15

2 stops16h 31m

£651

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 26/5

09:15-16:47

1 stop12h 32m

Louisville Intl

Thu 19/6

18:42-10:55

1 stop11h 13m

£660

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 26/5

11:05-14:11

2 stops32h 06m

Louisville Intl

Thu 19/6

06:00-10:00

2 stops23h 00m

£679

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 24/4

07:40-18:31

3 stops39h 51m

Louisville Intl

Tue 29/4

05:05-20:20

3 stops34h 15m

£779

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 19/8

12:15-21:02

1 stop13h 47m

Louisville Intl

Tue 26/8

14:20-10:40

1 stop15h 20m

£908

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 17/5

13:05-20:36

1 stop12h 31m

Louisville Intl

Fri 23/5

14:38-08:55

1 stop13h 17m

£4,243

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 17/5

09:30-21:45

2 stops17h 15m

Louisville Intl

Sat 24/5

14:05-10:00

2 stops14h 55m

£5,003

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 18/5

06:40-22:43

3 stops21h 03m

Louisville Intl

Sat 24/5

13:05-21:40

2 stops27h 35m

£5,607

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 15 results
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?

Use this chart to determine the optimal time to book a return flight from Heathrow to Louisville. Price data was last updated on 21 March 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 25 March 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 25 March 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to Louisville to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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
8.0
Very Good

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

8.0

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 British Airways is currently your cheapest option to Louisville, with prices starting at £567. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Delta, with the lowest prices starting at £581 and £606, respectively. Users have found that British Airways is 8% 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£437Average£522FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£437Average£591FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£445Average£600FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£454Average£577FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£457Average£529FlexibilityNo cancel feeOn-time75%
Search KLM flights
American AirlinesCheapest£459Average£662FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
IberiaCheapest£459Average£604FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LufthansaCheapest£462Average£560FlexibilityNo 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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