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$390+ Cheap flights from London (LON) to Louisville (SDF)

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SDF
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from London to Louisville Intl are usually found in September or January, booked 55 days in advance, depart on a Thursday or Tuesday and return on a Wednesday

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 September 15, 2025.

Round-trip from

$628
(TravelUp)

One-way from

$390
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$693
From London (LON) to Louisville Intl
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One-way flight from London (LON) to Louisville Intl
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Highest demand for flights based on searches. 17% potential increase in price ($175 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from London to Louisville

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 September 15, 2025.

This TravelUp deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/44:00 pmLHR - SDF
1 stop12h 30mLufthansa
Sun 10/57:20 pmSDF - LHR
1 stop11h 25mLufthansa
Deal found 9/13$628
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:30 amLHR - SDF
2 stops15h 57mUnited Airlines
Thu 11/69:55 amSDF - LHR
2 stops15h 00mUnited Airlines
Deal found 9/15$634
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:30 amLHR - SDF
2 stops17h 18mUnited Airlines
Sun 10/57:20 pmSDF - LHR
2 stops33h 15mUnited Airlines
Deal found 9/13$654
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:00 amLHR - SDF
1 stop14h 57mUnited Airlines
Wed 10/1512:14 pmSDF - LHR
1 stop12h 41mUnited Airlines
Deal found 9/14$664
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:10 pmLCY - SDF
2 stops28h 17mMultiple Airlines
Thu 11/62:35 pmSDF - LCY
2 stops17h 15mMultiple Airlines
Deal found 9/15$676
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:00 amLHR - SDF
1 stop14h 57mUnited Airlines
Fri 10/179:55 amSDF - LHR
1 stop16h 00mUnited Airlines
Deal found 9/14$684
This British Airways deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:35 pmLHR - SDF
1 stop14h 28mBritish Airways
Sat 11/85:20 pmSDF - LHR
1 stop13h 15mBritish Airways
Deal found 9/13$695
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:50 amLHR - SDF
2 stops18h 58mUnited Airlines
Thu 10/168:45 amSDF - LHR
2 stops17h 10mUnited Airlines
Deal found 9/14$733
This Booking.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:15 pmLCY - SDF
2 stops28h 01mLufthansa
Sun 11/302:02 pmSDF - LCY
2 stops21h 38mLufthansa
Deal found 9/13$738
This Norse deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:00 pmLGW - SDF
1 stop13h 47mMultiple Airlines
Fri 10/177:15 amSDF - LGW
1 stop21h 45mMultiple Airlines
Deal found 9/13$749
This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:55 amLGW - SDF
3 stops26h 57mMultiple Airlines
Thu 11/66:00 amSDF - LGW
2 stops23h 55mMultiple Airlines
Deal found 9/15$752
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/103:20 pmLHR - SDF
1 stop12h 40mLufthansa
Fri 10/177:20 pmSDF - LHR
1 stop30h 00mLufthansa
Deal found 9/13$754

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 15, 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

LHR - SDF

LHRSDF

London Heathrow

Sat 10/4

4:00 pm-11:30 pm

1 stop12h 30m

Louisville Intl

Sun 10/5

7:20 pm-11:45 am

1 stop11h 25m

$628

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 11/1

6:30 am-7:27 pm

2 stops16h 57m

Louisville Intl

Sat 11/8

2:02 pm-5:55 am

1 stop10h 53m

$634

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 11/27

9:30 am-2:46 pm

2 stops34h 16m

Louisville Intl

Sun 11/30

9:00 am-5:55 am

1 stop15h 55m

$634

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/30

7:30 am-7:27 pm

2 stops15h 57m

Louisville Intl

Thu 11/6

11:00 am-7:55 am

1 stop15h 55m

$634

LondonLouisville

LGW - SDF

LGWSDF

London Gatwick

Thu 3/5

11:20 am-2:42 pm

2 stops32h 22m

Louisville Intl

Mon 3/9

8:58 am-7:30 am

2 stops18h 32m

$636

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Sat 10/4

8:30 am-8:48 pm

2 stops17h 18m

Louisville Intl

Sun 10/5

7:20 pm-9:35 am

2 stops33h 15m

$654

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/9

10:00 am-7:57 pm

1 stop14h 57m

Louisville Intl

Wed 10/15

8:45 am-9:35 am

2 stops19h 50m

$664

LondonLouisville

LCY - SDF

LCYSDF

London City

Thu 10/30

7:10 pm-7:27 pm

2 stops28h 17m

Louisville Intl

Thu 11/6

2:35 pm-12:50 pm

2 stops17h 15m

$676

LondonLouisville

LHR - SDF

LHRSDF

London Heathrow

Thu 10/9

10:00 am-7:57 pm

1 stop14h 57m

Louisville Intl

Fri 10/17

9:55 am-6:55 am

1 stop16h 00m

$684

LondonLouisville

LCY - SDF

LCYSDF

London City

Thu 11/27

6:15 pm-5:16 pm

2 stops28h 01m

Louisville Intl

Sun 11/30

2:02 pm-4:40 pm

2 stops21h 38m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 30 results
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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 round-trip 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 round-trip flight from London to Louisville. Price data was last updated on September 12, 2025.

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from London to Louisville (average of $299). Flying from London to Louisville in April is currently the most expensive (average of $369). 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 September 15, 2025.

One of the essential ways to save on airfare from London to Louisville is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

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?

    Located just 5.3 mi from the city center, Louisville Intl is the airport most travelers will use when flying to Louisville from London. Booking flights from London to Louisville Intl (SDF) should be relatively easy as there are 0 daily inbound flights from London from 0 different airlines.

  • How long is the flight from London to Louisville?

    Lufthansa, United Airlines, and American Airlines can get you from London to Louisville in just under 12h 30m. Your travel time can differ by up to 19h 52m. There are 4033 mi between London and Louisville. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from London to Louisville (average of $299). Flying from London to Louisville in April is currently the most expensive (average of $369). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
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