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Cheap flights from Louisville to London from £242

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
10 Jun — 17 Jun1
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 11 May 2026.

Tue 29/913:37
SDF
-
LHR
1 stop13h 43m
United Airlines
Thu 1/1006:50
LHR
-
SDF
2 stops14h 59m
United Airlines
Deal found 6/5£615
Wed 9/919:07
SDF
-
LHR
1 stop10h 43m
Iberia
Tue 22/906:15
LHR
-
SDF
2 stops21h 43m
Iberia
Deal found 10/5£637
Sun 1/1112:53
SDF
-
LHR
2 stops23h 47m
Scandinavian Airlines
Sun 8/1106:40
LHR
-
SDF
2 stops19h 11m
Scandinavian Airlines
Deal found 8/5£643
Sun 1/1115:24
SDF
-
LHR
2 stops22h 06m
Scandinavian Airlines
Wed 11/1106:40
LHR
-
SDF
2 stops22h 22m
Scandinavian Airlines
Deal found 8/5£648
Tue 1/917:08
SDF
-
LHR
1 stop11h 27m
Multiple Airlines
Wed 9/919:30
LHR
-
SDF
2 stops32h 28m
Multiple Airlines
Deal found 7/5£654
Wed 2/914:36
SDF
-
LHR
1 stop17h 14m
British Airways
Mon 7/919:25
LHR
-
SDF
2 stops31h 01m
British Airways
Deal found 10/5£655
Wed 26/816:01
SDF
-
LHR
1 stop13h 54m
British Airways
Wed 2/911:30
LHR
-
SDF
2 stops30h 19m
British Airways
Deal found 6/5£656
Mon 17/819:08
SDF
-
LHR
1 stop10h 22m
British Airways
Tue 25/809:45
LHR
-
SDF
1 stop13h 48m
British Airways
Deal found 6/5£657
Sun 9/821:24
SDF
-
LGW
1 stop31h 36m
Multiple Airlines
Sat 22/814:00
LGW
-
SDF
1 stop31h 29m
Multiple Airlines
Deal found 7/5£681
Sun 9/821:24
SDF
-
LGW
1 stop31h 36m
Multiple Airlines
Wed 19/814:00
LGW
-
SDF
1 stop31h 29m
Multiple Airlines
Deal found 7/5£701
Sat 11/721:05
SDF
-
LGW
1 stop31h 55m
Multiple Airlines
Wed 15/714:00
LGW
-
SDF
1 stop29h 33m
Multiple Airlines
Deal found 9/5£715
Wed 26/814:34
SDF
-
LGW
2 stops13h 51m
Delta
Wed 2/910:25
LGW
-
SDF
2 stops16h 12m
Delta
Deal found 7/5£719

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 11 May 2026.

Round-trip from

£615

One-way from

£242

Popular in

June

Cheapest in

October

Average price

£817
United Airlines
  • United Airlines
  • 29/9-1/10
  • 3 total stops
  • 28h 42m total
  • Louisville to London
Search Deals
British Airways
  • British Airways
  • 15/9
  • 1 total stop
  • 13h 56m total
  • Louisville to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£129 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 11 May 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 - LGW

SDFLGW

Louisville Intl

Wed 26/8

14:34-09:25

2 stops13h 51m

London Gatwick

Wed 2/9

10:25-21:37

2 stops16h 12m

£719

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Wed 12/8

14:34-09:25

2 stops13h 51m

London Gatwick

Wed 19/8

10:25-21:29

2 stops16h 04m

£719

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 14/9

13:00-09:40

2 stops15h 40m

London Gatwick

Wed 23/9

10:25-20:52

2 stops15h 27m

£720

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 29/9

13:37-07:15

1 stop12h 38m

London Heathrow

Thu 1/10

08:00-19:09

1 stop16h 09m

£732

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Mon 17/8

10:05-08:40

2 stops17h 35m

London City

Tue 25/8

09:15-19:19

2 stops15h 04m

£732

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 29/7

15:41-11:35

1 stop14h 54m

London Heathrow

Tue 11/8

14:05-14:41

2 stops29h 36m

£778

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 14/9

13:00-16:25

3 stops22h 25m

London Heathrow

Fri 25/9

06:40-22:36

2 stops20h 56m

£827

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Thu 30/7

10:05-08:40

2 stops17h 35m

London City

Wed 12/8

09:15-22:59

2 stops18h 44m

£839

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Thu 30/7

14:22-09:25

2 stops14h 03m

London Gatwick

Wed 12/8

10:25-21:29

2 stops16h 04m

£843

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 27/7

13:08-05:55

1 stop11h 47m

London Heathrow

Sun 2/8

08:00-23:59

1 stop20h 59m

£845

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 55 resultsSorted by cheapest first
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6

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?

Booking 59 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, April is the cheapest month in which you can book a flight from Louisville to London (average of £331). Flying from Louisville to London in June is currently the most expensive (average of £696). 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 Louisville to London?

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 50% 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 £398.

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 37m.

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.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 May 2026.
Check out reviews from past customers who have flown with British Airways from Louisville to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,969 reviews
Check prices

Comfort

6.8

Crew

7.7

Overall

6.7

Boarding

6.9

Entertainment

6.4

Food

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance
British Airways
6.7
Okay
7,969 reviews
British Airways
6.7
Okay
7,969 reviews
Check prices

Comfort

6.8

Crew

7.7

Overall

6.7

Boarding

6.9

Entertainment

6.4

Food

6.4

Reviews

1 / 20
10.0
Excellent

Viorica,Mar 2026

PHX - LHR

The food lately is just from poor to very poor. I bealeave that you can serve less quantities for more quality food. Exemple : at breakfast : omlete and vegetarian omlete ....I beleave with less work less personel could be provide some hummus and carrots and some boiled egss plus whatever snacks or drinks you wish....... Thank you in advance

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 12h 38m. 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, April is the cheapest month in which you can book a flight from Louisville to London (average of £331). Flying from Louisville to London in June is currently the most expensive (average of £696). 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
Hounslow
Croydon
Wembley
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Chelmsford
Southall

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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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