Cheap flights from London to Louisville from £255

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDF
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Louisville Intl are usually found in January or September, booked 55 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 14 November 2025.

Round-trip from

£607

One-way from

£255

Popular in

August

Cheapest in

January

Average price

£638
American Airlines
  • American Airlines
  • 5/3-9/3
  • 4 total stops
  • 55h 12m total
  • London to Louisville
20/2
  • 20/2
  • 2 total stops
  • 26h 05m total
  • London to Louisville
Highest demand for flights based on searches. 11% potential increase in price (£61 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in November 2025

Find 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 14 November 2025.

Thu 20/1107:50LHR - SDF
2 stops18h 50mAer Lingus
Sun 23/1117:20SDF - LHR
2 stops33h 45mAer Lingus
Deal found 12/11£717
Sun 28/1206:30LHR - SDF
2 stops15h 58mMultiple Airlines
Sun 4/118:06SDF - LHR
2 stops32h 44mMultiple Airlines
Deal found 13/11£837
Thu 20/1113:00LHR - SDF
1 stop13h 14mVirgin Atlantic
Sun 23/1118:16SDF - LHR
1 stop31h 09mVirgin Atlantic
Deal found 12/11£840
Sat 22/1114:10LHR - SDF
1 stop12h 19mMultiple Airlines
Sat 21/220:00SDF - LHR
1 stop11h 00mMultiple Airlines
Deal found 13/11£902
Sat 22/1111:15LHR - SDF
2 stops17h 51mDelta
Sat 21/210:46SDF - LHR
2 stops15h 19mDelta
Deal found 13/11£910
Sun 28/1206:30LHR - SDF
2 stops19h 02mUnited Airlines
Sun 4/118:11SDF - LHR
1 stop32h 44mUnited Airlines
Deal found 13/11£969
Fri 19/1209:55LHR - SDF
1 stop13h 37mMultiple Airlines
Sat 27/1215:44SDF - LHR
1 stop10h 36mMultiple Airlines
Deal found 12/11£1,013
Sat 27/1207:40LHR - SDF
2 stops16h 31mUnited Airlines
Sat 3/109:55SDF - LHR
1 stop19h 55mUnited Airlines
Deal found 12/11£1,033
Sun 28/1218:55LCY - SDF
2 stops27h 31mKLM
Sun 4/118:51SDF - LCY
2 stops32h 19mKLM
Deal found 13/11£1,036
Sat 27/1211:10LHR - SDF
2 stops16h 20mAir Canada
Sat 3/114:00SDF - LHR
2 stops36h 10mAir Canada
Deal found 12/11£1,040
Sat 20/1212:35LHR - SDF
1 stop14h 19mMultiple Airlines
Sun 28/1219:24SDF - LHR
1 stop30h 56mMultiple Airlines
Deal found 12/11£1,062
Fri 19/1208:40LCY - SDF
2 stops20h 21mVirgin Atlantic
Sat 27/1218:51SDF - LCY
2 stops17h 29mVirgin Atlantic
Deal found 12/11£1,283

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 14 November 2025.
Use the filters below to find and compare flights from London to Louisville that are best for you.

Fly from

London

Fly to

Louisville

Route

Depart

Return

Price

LondonLouisville

LGW - SDF

LGWSDF

London Gatwick

Thu 5/3

11:20-19:00

2 stops36h 40m

Louisville Intl

Mon 9/3

08:58-07:30

2 stops18h 32m

£607

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 10/1

08:30-20:28

2 stops16h 58m

Louisville Intl

Sun 18/1

14:10-06:40

1 stop11h 30m

£647

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Wed 29/4

15:00-21:56

1 stop11h 56m

Louisville Intl

Sun 3/5

06:44-11:05

1 stop23h 21m

£650

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Fri 1/5

11:45-23:59

2 stops17h 14m

Louisville Intl

Fri 8/5

10:10-06:30

1 stop15h 20m

£690

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Tue 3/2

07:30-22:05

2 stops19h 35m

Louisville Intl

Thu 5/2

14:10-09:45

2 stops14h 35m

£699

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 10/1

11:10-22:30

2 stops16h 20m

Louisville Intl

Sun 18/1

08:29-07:10

3 stops17h 41m

£843

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sun 28/12

10:45-18:06

1 stop12h 21m

Louisville Intl

Sun 4/1

18:51-06:50

2 stops54h 59m

£905

LondonLouisville

LCY - SDF

LCYSDF

London City

Sun 28/12

18:55-17:26

2 stops27h 31m

Louisville Intl

Sun 4/1

18:51-08:10

2 stops32h 19m

£1,036

LondonLouisville

LCY - SDF

LCYSDF

London City

Wed 29/4

09:15-22:26

2 stops18h 11m

Louisville Intl

Sun 3/5

13:00-18:35

2 stops24h 35m

£1,117

LondonLouisville

LCY - SDF

LCYSDF

London City

Fri 19/12

08:40-00:01

2 stops20h 21m

Louisville Intl

Sat 27/12

18:51-17:20

2 stops17h 29m

£1,283

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 33 results
1
2
3
4

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 7 November 2025.

The best time to book flights from London to Louisville is 55 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 £375). Flying from London to Louisville in July is currently the most expensive (average of £508). 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 LON to SDF?

Find hourly flight availability from London 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 14 November 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 8% on flights from London to Louisville by exploring options for tickets in the evening.

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 47% 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 £522.

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 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 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 Philadelphia (PHL) offer the fastest connection on this route, with an average stopover time of 1h 34m.

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 14 November 2025.
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.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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. 7 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 16h 58m. Fly via American Airlines, United Airlines, or KLM 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?

    British Airways, at £423, was found to be the cheapest airline from London to Louisville.Alternate airlines flying return to your destination include Air France and Finnair. Users have found that British Airways is 32% cheaper than the other options available to this destination.

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

  • 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 £375). Flying from London to Louisville in July is currently the most expensive (average of £508). 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 London to Louisville

Discover the top 7 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£423Average£582FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£429Average£704FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£437Average£572FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£449Average£583FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£468Average£631FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£471Average£568FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£488Average£622FlexibilityNo cancel feeOn-time69%
Search United Airlines 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.