What is the cheapest airline that flies from Louisville Intl to London?

British Airways, Air Canada, and United Airlines are the most popular carriers operating from Louisville Intl to London

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.

£157 Cheap Flights from Louisville to London in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from £833 to £997. The lowest price recently found on this route was £637.

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Find the cheapest flights from Louisville to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

20:28 - 10:00

SDF

LGW

32h 32m

2 stops

14:00 - 16:29

LGW

SDF

31h 29m

1 stop

£637Multiple Airlines

Fri, 21 Aug - Wed, 26 Aug

10:26 - 08:35

SDF

LHR

17h 09m

1 stop

06:15 - 21:35

LHR

SDF

20h 20m

2 stops

£644Iberia

Sun, 8 Nov - Wed, 18 Nov

14:47 - 06:50

SDF

LHR

11h 03m

1 stop

07:50 - 23:22

LHR

SDF

20h 32m

2 stops

£659British Airways

Tue, 22 Sep - Wed, 30 Sep

15:35 - 11:35

SDF

LHR

15h 00m

1 stop

06:50 - 17:40

LHR

SDF

15h 50m

2 stops

£662United Airlines

Tue, 22 Sep - Thu, 1 Oct

10:45 - 06:30

SDF

LHR

14h 45m

2 stops

06:50 - 17:40

LHR

SDF

15h 50m

2 stops

£664United Airlines

Tue, 22 Sep - Thu, 1 Oct

10:29 - 07:40

SDF

LHR

16h 11m

1 stop

16:25 - 10:46

LHR

SDF

23h 21m

1 stop

£665British Airways

Mon, 21 Sep - Fri, 2 Oct

10:23 - 06:30

SDF

LHR

15h 07m

2 stops

12:40 - 23:49

LHR

SDF

40h 09m

2 stops

£668Air Canada

Tue, 22 Sep - Wed, 30 Sep

06:15 - 06:30

SDF

LHR

19h 15m

2 stops

12:40 - 23:49

LHR

SDF

40h 09m

2 stops

£669Air Canada

Tue, 22 Sep - Thu, 1 Oct

12:00 - 10:40

SDF

LGW

17h 40m

2 stops

14:30 - 14:04

LGW

SDF

28h 34m

2 stops

£692American Airlines

Sun, 2 Aug - Fri, 28 Aug

08:30 - 08:40

SDF

LGW

19h 10m

2 stops

14:30 - 11:10

LGW

SDF

25h 40m

2 stops

£767American Airlines

Sat, 5 Sep - Sat, 19 Sep

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Scandinavian Airlines flights from Louisville to London

Our best Scandinavian Airlines deals on Louisville to London flight tickets

Scandinavian Airlines

5 Sept

SDF15:25Louisville Intl

21h 15m

2 stops

LHR17:40London Heathrow

19 Sept

LHR06:40London Heathrow

22h 19m

2 stops

SDF23:59Louisville Intl

£740

Scandinavian Airlines

5 Sept

SDF15:25Louisville Intl

19h 35m

2 stops

LHR16:00London Heathrow

19 Sept

LHR17:00London Heathrow

35h 59m

2 stops

SDF23:59Louisville Intl

£740

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

British Airways

22 Sept

SDF14:47Louisville Intl

11h 03m

1 stop

LHR06:50London Heathrow

30 Sept

LHR07:50London Heathrow

20h 32m

2 stops

SDF23:22Louisville Intl

£659

British Airways

21 Sept

SDF10:29Louisville Intl

16h 11m

1 stop

LHR07:40London Heathrow

2 Oct

LHR16:25London Heathrow

23h 21m

1 stop

SDF10:46Louisville Intl

£665

British Airways

21 Sept

SDF12:38Louisville Intl

13h 17m

1 stop

LHR06:55London Heathrow

2 Oct

LHR09:15London Heathrow

12h 59m

1 stop

SDF17:14Louisville Intl

£666

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Fri 21/8

20:28-10:00

2 stops32h 32m

London Gatwick

Wed 26/8

14:00-16:29

1 stop31h 29m

£637

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 8/11

10:26-08:35

1 stop17h 09m

London Heathrow

Wed 18/11

06:15-21:35

2 stops20h 20m

£644

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/9

14:47-06:50

1 stop11h 03m

London Heathrow

Wed 30/9

07:50-23:22

2 stops20h 32m

£659

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/9

15:35-11:35

1 stop15h 00m

London Heathrow

Thu 1/10

06:50-17:40

2 stops15h 50m

£662

Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/9

10:45-06:30

2 stops14h 45m

London Heathrow

Thu 1/10

06:50-17:40

2 stops15h 50m

£664

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 21/9

10:29-07:40

1 stop16h 11m

London Heathrow

Fri 2/10

16:25-10:46

1 stop23h 21m

£665

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/9

10:23-06:30

2 stops15h 07m

London Heathrow

Wed 30/9

12:40-23:49

2 stops40h 09m

£668

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/9

06:15-06:30

2 stops19h 15m

London Heathrow

Thu 1/10

12:40-23:49

2 stops40h 09m

£669

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sun 2/8

12:00-10:40

2 stops17h 40m

London Gatwick

Fri 28/8

14:30-14:04

2 stops28h 34m

£692

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sat 5/9

08:30-08:40

2 stops19h 10m

London Gatwick

Sat 19/9

14:30-11:10

2 stops25h 40m

£767

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 April. Flight prices, which tend to average around £338, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Louisville averaging around £401.

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	11h 09m
Direct flights	None

The fastest flight from Louisville to London takes 11h 09m

There are no direct flights from Louisville to London. There are no popular flight routes from Louisville to London.

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Frequently asked questions about flying from Louisville to London

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 11h 09m.
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.
What is the most popular airline from Louisville to London?
Based on momondo bookings for flights between Louisville and London, the leading airline is British Airways, making up 100% of the total bookings.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Maidstone

Ipswich

Ilford

Canterbury

Folkestone

Guildford

Hayes

Chichester

Hastings

Bedford

Colchester

Harlow

Chelmsford

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

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Fly into one of these airports located in London

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Cheap flights from Louisville to London from £157

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 26/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

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Scandinavian Airlines flights from Louisville to London

Our best Scandinavian Airlines deals on Louisville to London flight tickets

British Airways flights from Louisville to London

Our best British Airways deals on Louisville to London flight tickets

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

See travel insights to London from

How to get the cheapest flight ticket from Louisville to London

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

What is the cheapest month to fly to London?

How have Louisville to London flight prices changed over time?

What is the cheapest airline that flies from Louisville Intl to London?

When to book flights from Louisville to London

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

Direct flights

Frequently asked questions about flying from Louisville to London

Travelling to a place near London?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favourite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

Complete your trip to London

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