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

British Airways, American Airlines, and Aer Lingus 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.

£264 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 £904 to £748. The lowest price recently found on this route was £623.

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Find the cheapest flights from Louisville to London

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:37 - 20:40

SDF

LHR

26h 03m

1 stop

17:50 - 19:09

LHR

SDF

30h 19m

2 stops

£623United Airlines

Tue, 29 Sep - Thu, 1 Oct

19:07 - 10:50

SDF

LHR

10h 43m

1 stop

07:50 - 22:58

LHR

SDF

20h 08m

2 stops

£641Iberia

Wed, 9 Sep - Tue, 22 Sep

12:53 - 17:40

SDF

LHR

23h 47m

2 stops

06:40 - 20:51

LHR

SDF

19h 11m

2 stops

£647Scandinavian Airlines

Sun, 1 Nov - Sun, 8 Nov

15:24 - 16:00

SDF

LHR

19h 36m

2 stops

06:40 - 00:02

LHR

SDF

21h 22m

2 stops

£648Scandinavian Airlines

Tue, 20 Oct - Fri, 30 Oct

15:58 - 09:25

SDF

LHR

12h 27m

1 stop

06:15 - 19:43

LHR

SDF

17h 28m

2 stops

£656British Airways

Tue, 20 Oct - Fri, 30 Oct

19:12 - 12:50

SDF

LHR

12h 38m

1 stop

19:25 - 21:26

LHR

SDF

31h 01m

2 stops

£659British Airways

Tue, 1 Sep - Mon, 7 Sep

19:08 - 10:30

SDF

LHR

10h 22m

1 stop

06:15 - 21:31

LHR

SDF

20h 16m

2 stops

£661Multiple Airlines

Mon, 24 Aug - Fri, 28 Aug

21:05 - 10:00

SDF

LGW

31h 55m

1 stop

14:00 - 14:33

LGW

SDF

29h 33m

1 stop

£720Multiple Airlines

Sat, 11 Jul - Wed, 15 Jul

13:00 - 09:40

SDF

LGW

15h 40m

2 stops

10:25 - 20:52

LGW

SDF

15h 27m

2 stops

£724Delta

Mon, 14 Sep - Wed, 23 Sep

13:00 - 09:40

SDF

LGW

15h 40m

2 stops

10:25 - 20:52

LGW

SDF

15h 27m

2 stops

£761Delta

Mon, 7 Sep - Sat, 12 Sep

Scandinavian Airlines flights from Louisville to London

Our best Scandinavian Airlines deals on Louisville to London flight tickets

Scandinavian Airlines

1 Nov

SDF12:53Louisville Intl

23h 47m

2 stops

LHR17:40London Heathrow

8 Nov

LHR06:40London Heathrow

19h 11m

2 stops

SDF20:51Louisville Intl

£647

Scandinavian Airlines

20 Oct

SDF15:24Louisville Intl

19h 36m

2 stops

LHR16:00London Heathrow

30 Oct

LHR06:40London Heathrow

21h 22m

2 stops

SDF00:02Louisville Intl

£648

Scandinavian Airlines

21 Oct

SDF13:00Louisville Intl

24h 50m

3 stops

LHR18:50London Heathrow

25 Oct

LHR06:40London Heathrow

21h 22m

2 stops

SDF00:02Louisville Intl

£655

Lufthansa flights from Louisville to London

Our best Lufthansa deals on Louisville to London flight tickets

Lufthansa

24 Aug

SDF17:45Louisville Intl

19h 40m

2 stops

LHR18:25London Heathrow

28 Aug

LHR09:30London Heathrow

15h 38m

2 stops

SDF20:08Louisville Intl

£716

Lufthansa

14 Sept

SDF19:43Louisville Intl

21h 27m

2 stops

LHR22:10London Heathrow

23 Sept

LHR13:30London Heathrow

15h 35m

2 stops

SDF00:05Louisville Intl

£722

Lufthansa

14 Sept

SDF19:43Louisville Intl

21h 27m

2 stops

LHR22:10London Heathrow

23 Sept

LHR09:30London Heathrow

19h 35m

2 stops

SDF00:05Louisville Intl

£723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 29/9

13:37-20:40

1 stop26h 03m

London Heathrow

Thu 1/10

17:50-19:09

2 stops30h 19m

£623

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 9/9

19:07-10:50

1 stop10h 43m

London Heathrow

Tue 22/9

07:50-22:58

2 stops20h 08m

£641

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 1/11

12:53-17:40

2 stops23h 47m

London Heathrow

Sun 8/11

06:40-20:51

2 stops19h 11m

£647

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/10

15:24-16:00

2 stops19h 36m

London Heathrow

Fri 30/10

06:40-00:02

2 stops21h 22m

£648

Fastest return journey

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/10

15:58-09:25

1 stop12h 27m

London Heathrow

Fri 30/10

06:15-19:43

2 stops17h 28m

£656

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 1/9

19:12-12:50

1 stop12h 38m

London Heathrow

Mon 7/9

19:25-21:26

2 stops31h 01m

£659

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 24/8

19:08-10:30

1 stop10h 22m

London Heathrow

Fri 28/8

06:15-21:31

2 stops20h 16m

£661

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sat 11/7

21:05-10:00

1 stop31h 55m

London Gatwick

Wed 15/7

14:00-14:33

1 stop29h 33m

£720

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

£724

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 7/9

13:00-09:40

2 stops15h 40m

London Gatwick

Sat 12/9

10:25-20:52

2 stops15h 27m

£761

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 £333, 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 £395.

How far in advance should I book a flight from Louisville 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 £677 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 £553 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 08m
Direct flights	None

The fastest flight from Louisville to London takes 10h 08m

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

Search flight deals

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 10h 08m.
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

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Wembley

Slough

Maidstone

Ipswich

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Hayes

Guildford

Folkestone

Chelmsford

Dover

Bedford

Chichester

Harlow

Colchester

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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Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

London Stansted Airport

Cheap flights from Louisville to London from £264

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 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from Louisville to London

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Scandinavian Airlines flights from Louisville to London

Our best Scandinavian Airlines deals on Louisville to London flight tickets

Lufthansa flights from Louisville to London

Our best Lufthansa 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 far in advance should I book a flight from Louisville 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

Explore popular destinations other users love

According to popular flight searches on momondo this year