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Cheap flights from Louisville to London from £228

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
23 Apr — 30 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Louisville to London

Enter your travel dates to find the best prices.

Cheapest flights from Louisville to London
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 March 2026.

Tue 25/813:00
SDF
-
LHR
2 stops23h 40m
Scandinavian Airlines
Sun 6/918:40
LHR
-
SDF
2 stops32h 56m
Scandinavian Airlines
Deal found 23/3£628
Wed 29/718:02
SDF
-
LHR
1 stop13h 08m
British Airways
Wed 19/810:05
LHR
-
SDF
1 stop13h 40m
British Airways
Deal found 18/3£630
Mon 17/817:50
SDF
-
LHR
1 stop13h 20m
British Airways
Tue 25/815:00
LHR
-
SDF
1 stop12h 47m
British Airways
Deal found 23/3£631
Mon 17/818:11
SDF
-
LHR
1 stop11h 19m
Multiple Airlines
Tue 25/807:50
LHR
-
SDF
2 stops20h 11m
Multiple Airlines
Deal found 23/3£631
Wed 29/712:00
SDF
-
LGW
2 stops17h 40m
American Airlines
Wed 19/812:20
LGW
-
SDF
2 stops16h 35m
American Airlines
Deal found 18/3£631
Mon 17/816:00
SDF
-
LHR
1 stop12h 35m
Multiple Airlines
Wed 26/814:45
LHR
-
SDF
1 stop13h 16m
Multiple Airlines
Deal found 18/3£634
Sun 23/818:11
SDF
-
LHR
1 stop12h 04m
Multiple Airlines
Tue 1/915:15
LHR
-
SDF
1 stop12h 46m
Multiple Airlines
Deal found 23/3£634
Mon 17/810:05
SDF
-
LHR
2 stops16h 35m
Lufthansa
Tue 25/808:30
LHR
-
SDF
2 stops15h 49m
Lufthansa
Deal found 23/3£640
Mon 7/915:24
SDF
-
LHR
2 stops25h 16m
Scandinavian Airlines
Mon 14/906:40
LHR
-
SDF
2 stops22h 19m
Scandinavian Airlines
Deal found 22/3£643
Mon 20/417:48
SDF
-
LHR
2 stops19h 37m
Lufthansa
Thu 30/419:30
LHR
-
SDF
2 stops33h 26m
Lufthansa
Deal found 23/3£646
Sun 23/818:11
SDF
-
LHR
1 stop12h 04m
British Airways
Thu 27/809:45
LHR
-
SDF
1 stop12h 56m
British Airways
Deal found 22/3£647
Tue 1/916:00
SDF
-
LHR
1 stop11h 00m
British Airways
Thu 17/906:15
LHR
-
SDF
2 stops21h 43m
British Airways
Deal found 21/3£649

Find flight deals from Louisville to London

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to London (LON). 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 24 March 2026.

Round-trip from

£628

One-way from

£228

Popular in

June

Cheapest in

October

Average price

£586
Scandinavian Airlines
  • Scandinavian Airlines
  • 25/8-6/9
  • 4 total stops
  • 56h 36m total
  • Louisville to London
Search Deals
British Airways
  • British Airways
  • 21/7
  • 1 total stop
  • 10h 26m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£128 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 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 Louisville to London 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 24 March 2026.
Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 17/8

16:00-09:35

1 stop12h 35m

London Heathrow

Wed 26/8

14:45-23:01

1 stop13h 16m

£634

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Mon 17/8

19:43-17:55

2 stops17h 12m

London City

Tue 25/8

09:15-19:19

2 stops15h 04m

£657

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Mon 13/4

17:48-17:55

2 stops19h 07m

London City

Tue 21/4

09:15-19:59

2 stops15h 44m

£657

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 29/4

13:19-06:50

1 stop12h 31m

London Heathrow

Wed 6/5

14:45-23:48

1 stop14h 03m

£675

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

10:05-06:30

2 stops15h 25m

London Heathrow

Tue 22/9

15:20-22:57

1 stop12h 37m

£681

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Wed 26/8

19:43-17:55

2 stops17h 12m

London City

Wed 2/9

09:15-19:19

2 stops15h 04m

£690

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 9/5

06:17-21:25

1 stop10h 08m

London Heathrow

Wed 13/5

14:10-23:56

1 stop14h 46m

£716

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 26/8

13:48-06:55

1 stop12h 07m

London Heathrow

Fri 28/8

08:30-18:56

2 stops15h 26m

£733

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 24/8

18:00-11:55

1 stop12h 55m

London Heathrow

Wed 26/8

12:15-19:19

1 stop12h 04m

£735

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 17/4

17:48-11:55

1 stop13h 07m

London Heathrow

Mon 27/4

14:10-22:30

1 stop13h 20m

£753

Flights are sorted by cheapest return flights first.

Deals found on 22/3

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

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

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

Use this chart to determine the optimal time to book a return flight from Louisville to London. Price data was last updated on 13 March 2026.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to London. 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 Louisville to London?

Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of £389). Flying from Louisville to London in June is currently the most expensive (average of £687). 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’s the top stopover airport for flights from Louisville to London?

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

Chicago (ORD) – chosen by Cheapflights users on 60% of one-stop itineraries from Louisville to London on Cheapflights.

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

Average return fare for one-stop flights from Louisville to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Atlanta (ATL) is the most affordable one-stop option, with an average return flight price of £406.

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

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

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 36m.

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

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

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 31m.

Related info for your journey

Find useful and relevant information for your journey from Louisville to London. 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 from for flights from Louisville to London?

    For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Louisville Intl on a regular basis.

  • How long is the flight from Louisville to London?

    Departing from Louisville to London will take you 15h 25m. Airlines will cover a distance of 4033 mi. This flight may include one or multiple stops.

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

    The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London City or Louisville Intl - London Gatwick.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to London 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 Louisville to London?

    Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of £389). Flying from Louisville to London in June is currently the most expensive (average of £687). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Eastbourne
Romford
Ipswich
Bedford
Chelmsford
Southend-on-Sea

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Millions of users choose and trust Cheapflights to book the best flight deals from Louisville to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Louisville to London flexibly with Cheapflights today.

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

Yes! Start tracking prices for Louisville to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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