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Cheap flights from London to Louisville from £365

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDF
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Louisville

Enter your travel dates to find the best prices.

Cheapest flights from London to Louisville
Explore the most affordable flight options available from London to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 March 2026.

Mon 13/412:15
LHR
-
SDF
1 stop14h 15m
British Airways
Mon 20/419:01
SDF
-
LHR
1 stop11h 14m
British Airways
Deal found 9/3£610
Sat 24/1006:40
LHR
-
SDF
2 stops22h 22m
Scandinavian Airlines
Sat 7/1113:00
SDF
-
LHR
2 stops23h 40m
Scandinavian Airlines
Deal found 8/3£616
Wed 11/1110:05
LHR
-
SDF
2 stops17h 54m
British Airways
Sun 15/1119:31
SDF
-
LHR
1 stop32h 44m
British Airways
Deal found 12/3£618
Mon 13/407:25
LHR
-
SDF
2 stops17h 51m
United Airlines
Mon 20/417:48
SDF
-
LHR
1 stop13h 07m
United Airlines
Deal found 9/3£628
Tue 7/414:00
LGW
-
SDF
1 stop26h 14m
Multiple Airlines
Fri 24/419:48
SDF
-
LGW
2 stops33h 12m
Multiple Airlines
Deal found 11/3£631
Mon 13/414:45
LHR
-
SDF
1 stop14h 03m
Finnair
Mon 20/419:01
SDF
-
LHR
1 stop10h 29m
Finnair
Deal found 9/3£634
Mon 20/415:20
LHR
-
SDF
1 stop12h 52m
Lufthansa
Mon 27/414:30
SDF
-
LHR
1 stop11h 25m
Lufthansa
Deal found 8/3£634
Tue 7/414:00
LGW
-
SDF
1 stop26h 14m
Multiple Airlines
Fri 17/419:48
SDF
-
LGW
2 stops57h 12m
Multiple Airlines
Deal found 9/3£693
Sun 12/420:45
LCY
-
SDF
2 stops32h 14m
KLM
Sun 19/419:54
SDF
-
LCY
2 stops16h 26m
KLM
Deal found 8/3£720
Thu 23/410:00
LCY
-
SDF
2 stops18h 59m
KLM
Thu 30/417:38
SDF
-
LCY
2 stops33h 17m
KLM
Deal found 9/3£726
Thu 17/920:40
LGW
-
SDF
2 stops31h 18m
Iberia
Sun 20/910:31
SDF
-
LGW
2 stops19h 19m
Iberia
Deal found 10/3£737
Sun 26/414:00
LGW
-
SDF
2 stops32h 04m
Multiple Airlines
Sun 3/514:27
SDF
-
LGW
1 stop14h 33m
Multiple Airlines
Deal found 12/3£739

Find flight deals from London to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 13 March 2026.

Round-trip from

£610

One-way from

£365

Popular in

December

Cheapest in

September

Average price

£618
British Airways
  • British Airways
  • 13/4-20/4
  • 2 total stops
  • 25h 29m total
  • London to Louisville
Search Deals
10/6
  • 10/6
  • 1 total stop
  • 29h 41m total
  • London to Louisville
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 13 March 2026.
Use the filters below to find and compare flights from London 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 22/4

10:50-22:30

2 stops16h 40m

Louisville Intl

Wed 29/4

14:30-10:25

2 stops14h 55m

£628
Fastest return journey

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 20/4

12:00-19:02

1 stop12h 02m

Louisville Intl

Mon 27/4

19:01-12:15

1 stop12h 14m

£640

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 20/4

14:05-19:59

2 stops34h 54m

Louisville Intl

Mon 27/4

06:00-21:00

2 stops34h 00m

£642

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 24/4

10:50-22:30

2 stops16h 40m

Louisville Intl

Mon 27/4

13:55-10:40

2 stops15h 45m

£658

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 25/4

06:40-21:31

2 stops19h 51m

Louisville Intl

Sat 2/5

13:00-16:00

2 stops22h 00m

£663

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 23/4

08:45-20:16

2 stops16h 31m

Louisville Intl

Sat 2/5

10:06-05:55

2 stops14h 49m

£687

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Mon 11/5

10:50-22:30

2 stops16h 40m

Louisville Intl

Mon 1/6

10:00-05:55

2 stops14h 55m

£690

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 19/4

14:45-23:48

1 stop14h 03m

Louisville Intl

Sun 26/4

16:30-12:50

1 stop15h 20m

£697

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 19/4

10:45-22:50

2 stops17h 05m

Louisville Intl

Sun 26/4

19:54-14:35

2 stops13h 41m

£699

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 3/5

14:10-22:30

1 stop13h 20m

Louisville Intl

Sat 9/5

19:40-18:40

2 stops18h 00m

£716

Flights are sorted by cheapest return flights first.

Deals found on 11/3

Showing 1-10 of 54 resultsSorted by cheapest first
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Best time to book a flight from London to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from London 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 to Louisville

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

Use this chart to determine the optimal time to book a return flight from London to Louisville. Price data was last updated on 6 March 2026.

The best time to book flights from London to Louisville is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to Louisville?

Currently, September is the cheapest month in which you can book a flight from London to Louisville (average of £369). Flying from London to Louisville in July is currently the most expensive (average of £519). 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 to Louisville?

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

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

Chicago (ORD) – chosen by Cheapflights users on 44% of one-stop itineraries from London to Louisville on Cheapflights.

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

Average return fare for one-stop flights from London 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 £513.

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

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

Flights via Detroit (DTW) have the shortest average one-way travel time for one-stop routes: 11h 42m.

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

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

Flights via Charlotte (CLT) offer the fastest connection on this route, with an average stopover time of 1h 35m.

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 13 March 2026.
Read through reviews of airlines operating flights from London to Louisville, such as Finnair,Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.6
Good
1,371 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

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
680 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

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
9,419 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

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
7,846 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

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
7,784 reviews
Finnair
7.6
Good
1,371 reviews
Check prices

Comfort

7.5

Food

6.7

Overall

7.6

Boarding

7.7

Entertainment

6.9

Crew

8.2

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 London 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?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from London to Louisville. 6 airlines have flights to Louisville Intl from London on a regular basis. Booking flights from London to Louisville Intl should not be difficult; the airport handles an average of 0 inbound flights from London per day.

  • How long is the flight from London to Louisville?

    There are many flights that can get you from London to Louisville in 12h 02m. Fly via United Airlines, British Airways, or Air Canada to get the fastest option. The distance between London and Louisville is about 4033 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    KLM, at £470, was found to be the cheapest airline from London to Louisville.Alternate airlines flying return to your destination include United Airlines and Lufthansa. Users have found that KLM is 27% cheaper than the other options available to this destination.

  • What are the most popular routes from London to Louisville?

    The most popular flight routes from London to Louisville are London Heathrow - Louisville Intl, London City - Louisville Intl and London Gatwick - Louisville Intl.

  • Can I find deals for flights from London to Louisville that include hotel bookings?

    Yes. In addition to deals on London to Louisville flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Louisville.

  • Can I find deals for business class flights from London to Louisville?

    Yes. Cheapflights offers flight deals from London 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 to Louisville?

    Currently, September is the cheapest month in which you can book a flight from London to Louisville (average of £369). Flying from London to Louisville in July is currently the most expensive (average of £519). 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 London to Louisville

Discover the top 6 airlines that operate flights from London 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 13 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£470Average£650FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£482Average£633FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£485Average£565FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£496Average£623FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£512Average£652FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£512Average£618FlexibilityNo cancel feeOn-time76%
Search Finnair 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 London to Louisville?

Cheapflights makes it easy to find London to Louisville flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Louisville from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to Louisville with no change fees?

Yes, we can. To see specific flights from London to Louisville with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Louisville become cheaper?

Not ready to book yet? You can track prices for flights from London to Louisville on Cheapflights with our Price Alert feature and get notified when better prices are available.

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