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Cheap flights from London Heathrow Airport to Louisville from £463

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 16/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SDF
27 Feb — 6 Mar1
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 28 January 2026.

Tue 10/311:15
LHR
-
SDF
1 stop16h 44m
American Airlines
Wed 25/312:07
SDF
-
LHR
2 stops13h 43m
American Airlines
Deal found 26/1£497
Mon 20/410:50
LHR
-
SDF
2 stops16h 40m
Lufthansa
Mon 27/413:55
SDF
-
LHR
1 stop11h 50m
Lufthansa
Deal found 26/1£502
Mon 4/509:30
LHR
-
SDF
2 stops15h 12m
Lufthansa
Mon 11/514:00
SDF
-
LHR
1 stop11h 45m
Lufthansa
Deal found 25/1£504
Sun 19/407:25
LHR
-
SDF
2 stops20h 05m
Lufthansa
Sun 26/417:43
SDF
-
LHR
1 stop13h 02m
Lufthansa
Deal found 26/1£506
Sun 22/207:30
LHR
-
SDF
2 stops17h 12m
United Airlines
Sun 1/305:35
SDF
-
LHR
1 stop24h 40m
United Airlines
Deal found 25/1£507
Wed 4/211:05
LHR
-
SDF
2 stops16h 25m
United Airlines
Sun 8/209:50
SDF
-
LHR
1 stop15h 50m
United Airlines
Deal found 26/1£507
Sun 22/212:05
LHR
-
SDF
1 stop12h 37m
Lufthansa
Sun 1/314:05
SDF
-
LHR
1 stop10h 50m
Lufthansa
Deal found 25/1£509
Wed 18/307:35
LHR
-
SDF
2 stops17h 51m
British Airways
Tue 31/306:33
SDF
-
LHR
1 stop21h 32m
British Airways
Deal found 25/1£510
Wed 11/314:10
LHR
-
SDF
1 stop13h 10m
British Airways
Wed 25/315:33
SDF
-
LHR
1 stop13h 42m
British Airways
Deal found 26/1£512
Wed 11/314:45
LHR
-
SDF
1 stop13h 42m
British Airways
Wed 18/315:33
SDF
-
LHR
1 stop13h 42m
British Airways
Deal found 25/1£515

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 28 January 2026.

Round-trip from

£497

One-way from

£463

Popular in

July

Cheapest in

January

Average price

£429
American Airlines
  • American Airlines
  • 10/3-25/3
  • 4 total stops
  • 29h 26m total
  • London to Louisville
Search Deals
Aer Lingus
  • Aer Lingus
  • 16/2
  • 2 total stops
  • 18h 26m total
  • London to Louisville
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 28 January 2026.
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

Tue 10/3

11:15-23:59

1 stop16h 44m

Louisville Intl

Wed 25/3

12:07-05:50

2 stops13h 43m

£497

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 20/4

10:50-22:30

2 stops16h 40m

Louisville Intl

Mon 27/4

13:55-06:45

1 stop11h 50m

£502

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 11/3

12:05-22:13

2 stops38h 08m

Louisville Intl

Thu 26/3

06:00-21:20

1 stop11h 20m

£502

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 12/3

09:00-22:13

2 stops17h 13m

Louisville Intl

Thu 19/3

06:00-20:35

1 stop10h 35m

£502

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 11/3

09:00-22:13

2 stops17h 13m

Louisville Intl

Wed 18/3

13:47-06:20

1 stop12h 33m

£502

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 19/4

07:25-22:30

2 stops20h 05m

Louisville Intl

Sun 26/4

17:43-11:45

1 stop13h 02m

£506

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 28/2

07:30-19:42

2 stops17h 12m

Louisville Intl

Tue 3/3

09:00-07:55

1 stop17h 55m

£507

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 22/2

07:30-19:42

2 stops17h 12m

Louisville Intl

Sun 1/3

05:35-11:15

1 stop24h 40m

£507

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 18/3

07:35-21:26

2 stops17h 51m

Louisville Intl

Tue 31/3

06:33-09:05

1 stop21h 32m

£510

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 16/2

09:50-23:16

2 stops18h 26m

£463

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 17 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 23 January 2026.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Louisville, you should look to book at least 8 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 £360). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £486). 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.

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 28 January 2026.
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.
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Finnair
7.6
Good
1,356 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,213 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
British Airways
6.7
Okay
7,704 reviews
KLM
7.7
Good
1,443 reviews
Check prices

Comfort

7.6

Boarding

7.8

Food

7.3

Entertainment

7.1

Crew

8.4

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 7 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 American Airlines, Lufthansa, and United Airlines fly from London Heathrow Airport to Louisville in about 16h 40m. The time it takes to get you to your destination can typically vary by up to 21h 28m. Airlines will cover a distance of 4033 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Flying on Air France is currently your cheapest option to Louisville, with prices starting at £411. Additional return tickets that might be worth considering are offered by Finnair and KLM, with the lowest prices starting at £429 and £448, respectively. Users have found that Air France is 30% 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 £360). Flying from London Heathrow Airport to Louisville in July is currently the most expensive (average of £486). 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 7 airlines flying from Heathrow to Louisville

Discover the top 7 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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£411Average£721FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£429Average£583FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£448Average£564FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£460Average£628FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£469Average£596FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£472Average£554FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£480Average£604FlexibilityNo cancel feeOn-time70%
Search British Airways 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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