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Cheap flights from Louisville to London from £162

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 19/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Louisville to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
13:47 - 06:20
SDF
-
LHR
12h 33m
1 stop
United Airlines Logo
06:50 - 20:14
LHR
-
SDF
17h 24m
2 stops
£464United Airlines
Mon, 9 Mar - Mon, 16 Mar
United Airlines Logo
13:58 - 08:25
SDF
-
LHR
14h 27m
2 stops
United Airlines Logo
06:50 - 20:14
LHR
-
SDF
17h 24m
2 stops
£467United Airlines
Mon, 9 Mar - Mon, 16 Mar
Air Canada Logo
09:00 - 07:10
SDF
-
LHR
18h 10m
2 stops
Air Canada Logo
13:25 - 22:13
LHR
-
SDF
36h 48m
2 stops
£473Air Canada
Tue, 10 Mar - Sun, 15 Mar
British Airways Logo
11:00 - 07:55
SDF
-
LHR
15h 55m
1 stop
British Airways Logo
19:25 - 21:30
LHR
-
SDF
31h 05m
2 stops
£474British Airways
Wed, 8 Apr - Mon, 13 Apr
British Airways Logo
19:07 - 12:15
SDF
-
LHR
12h 08m
1 stop
British Airways Logo
19:25 - 21:30
LHR
-
SDF
31h 05m
2 stops
£475British Airways
Wed, 8 Apr - Mon, 13 Apr
United Airlines Logo
07:20 - 08:30
SDF
-
LHR
20h 10m
1 stop
United Airlines Logo
06:50 - 23:46
LHR
-
SDF
21h 56m
2 stops
£476United Airlines
Mon, 30 Mar - Thu, 9 Apr
Air Canada Logo
09:00 - 08:30
SDF
-
LHR
19h 30m
2 stops
Air Canada Logo
09:00 - 13:06
LHR
-
SDF
56h 06m
2 stops
£482Air Canada
Sun, 8 Mar - Sun, 15 Mar
Scandinavian Airlines Logo
17:35 - 09:00
SDF
-
LHR
11h 25m
1 stop
Scandinavian Airlines Logo
10:45 - 22:43
LHR
-
SDF
15h 58m
1 stop
£485Scandinavian Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
13:19 - 10:00
SDF
-
LGW
16h 41m
1 stop
Multiple Airlines Logo
14:00 - 11:47
LGW
-
SDF
25h 47m
2 stops
£544Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
13:19 - 10:00
SDF
-
LGW
16h 41m
1 stop
Multiple Airlines Logo
14:00 - 11:47
LGW
-
SDF
25h 47m
2 stops
£577Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar

United Airlines flights from Louisville to London

Our best United Airlines deals on Louisville to London flight tickets
United Airlines
9 Mar
SDF13:47Louisville Intl
12h 33m
1 stop
LHR06:20London Heathrow
16 Mar
LHR06:50London Heathrow
17h 24m
2 stops
SDF20:14Louisville Intl
£464
United Airlines
9 Mar
SDF13:58Louisville Intl
14h 27m
2 stops
LHR08:25London Heathrow
16 Mar
LHR06:50London Heathrow
17h 24m
2 stops
SDF20:14Louisville Intl
£467
United Airlines
30 Mar
SDF14:30Louisville Intl
11h 25m
1 stop
LHR06:55London Heathrow
7 Apr
LHR06:50London Heathrow
18h 26m
2 stops
SDF20:16Louisville Intl
£476

Air Canada flights from Louisville to London

Our best Air Canada deals on Louisville to London flight tickets
Air Canada
10 Mar
SDF09:00Louisville Intl
18h 10m
2 stops
LHR07:10London Heathrow
15 Mar
LHR13:25London Heathrow
36h 48m
2 stops
SDF22:13Louisville Intl
£473
Air Canada
8 Mar
SDF09:00Louisville Intl
19h 30m
2 stops
LHR08:30London Heathrow
15 Mar
LHR09:00London Heathrow
56h 06m
2 stops
SDF13:06Louisville Intl
£482
Air Canada
1 Apr
SDF08:47Louisville Intl
16h 43m
2 stops
LHR06:30London Heathrow
10 Apr
LHR14:10London Heathrow
24h 15m
2 stops
SDF09:25Louisville Intl
£507

momondo 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, momondo users made 279,928 searches. Data last updated 9 February 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

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 9/3

13:47-06:20

1 stop12h 33m

London Heathrow

Mon 16/3

06:50-20:14

2 stops17h 24m

£464

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 9/3

13:58-08:25

2 stops14h 27m

London Heathrow

Mon 16/3

06:50-20:14

2 stops17h 24m

£467

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/3

09:00-07:10

2 stops18h 10m

London Heathrow

Sun 15/3

13:25-22:13

2 stops36h 48m

£473

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/4

11:00-07:55

1 stop15h 55m

London Heathrow

Mon 13/4

19:25-21:30

2 stops31h 05m

£474

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/4

19:07-12:15

1 stop12h 08m

London Heathrow

Mon 13/4

19:25-21:30

2 stops31h 05m

£475

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 30/3

07:20-08:30

1 stop20h 10m

London Heathrow

Thu 9/4

06:50-23:46

2 stops21h 56m

£476

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 8/3

09:00-08:30

2 stops19h 30m

London Heathrow

Sun 15/3

09:00-13:06

2 stops56h 06m

£482

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 9/3

17:35-09:00

1 stop11h 25m

London Heathrow

Mon 16/3

10:45-22:43

1 stop15h 58m

£485

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 9/3

13:19-10:00

1 stop16h 41m

London Gatwick

Mon 16/3

14:00-11:47

2 stops25h 47m

£544

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 9/3

13:19-10:00

1 stop16h 41m

London Gatwick

Mon 16/3

14:00-11:47

2 stops25h 47m

£577

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Louisville to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Louisville is in October. Flight prices, which tend to average around £510, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Louisville averaging around £516.

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £659 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Louisville for as low as £505 on momondo.

How have Louisville to London flight prices changed over time?

When to book flights from Louisville to London

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Louisville to London (SDF to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to London

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Louisville to London takes 10h 20m
There are no direct flights from Louisville to London. There are no popular flight routes from Louisville to London.
Search flight deals

  • How far is Louisville Intl to London by plane?

    There are 4042.6 mi between Louisville Intl and London. By plane, this route typically takes 10h 20m.

  • When did momondo last update prices for flights from Louisville Intl Airport to London?

    Prices for flights from Louisville Intl Airport to London are updated daily.

  • How old do you have to be to fly from Louisville Intl Airport to London?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Slough
Maidstone
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Wembley
Dover
Folkestone
Colchester
Bedford
Worthing
Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Louisville.

Can I find flights from Louisville to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Louisville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Louisville to London?

Once all potential Louisville to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Louisville to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport